Educational
Documentaries
Section titled “Documentaries”- 1337x Documentaries ⭐
- Documentary+ ⭐
- DocumentaryArea ⭐
- IHaveNoTV ⭐
- ARTE
- Documentary Network
- Documentary Storm
- Documentary Tube
- DocumentaryHeaven
- Films For Action
- Folkstreams
- Free-Official-Youtube-Content - YouTube Channel List
- LearnOutLoud
- Media Burn Archive
- MVGroup
- NASA+ - Official NASA Streaming Service
- National Geographic
- PBS
- r/Documentaries
- Rocumentaries
- Thought Maybe
- Top Documentary Films
- Videoneat
- WatchDocumentaries
- YT Video Essay Hall of Fame - YouTube Video Essay Archive / Frontend
Courses
Section titled “Courses”Streaming
Section titled “Streaming”- Audio Download CSE - Multi-Site Search ⭐
- Class Central - Search for Courses ⭐
- edX - Courses / Downloader ⭐
- Khan Academy - Courses / Downloader ⭐
- MitOpenCourseWare - Courses ⭐
- Alison - Courses
- Crash Course - Topic Crash Courses
- DigitalGarage - Google Courses
- EbookFoundation Courses - Courses
- Educational Hub - Courses
- Gresham College - Lectures / YouTube
- LearnOutLoud
- Limnology - Educational YouTube Channels
- OLI - Courses
- OpenCulture - Courses
- OpenHPI - Courses
- OpenLearn - Courses
- Saylor Academy - Courses
- Video Lectures - Lectures
- Yale Courses - Lectures / YouTube
Downloading
Section titled “Downloading”- Course Busters - Course Busters Access ⭐
- HackNation - Courses ⭐
- tut4dl - Courses ⭐
- AfraTafreeh - Courses
- CertCommunity - IT Cert Courses
- Free-Courses-For-Everyone - Course Site Index
- FreeCourseSite - Torrenting Sites / Use VPN
- learningDL - Courses / Requires Leech
- LinkedIn_Learning - LinkedIn Courses
Learning Sites
Section titled “Learning Sites”- PhET - Interactive Lessons ⭐
- r/coolguides - Guides & Tutorials ⭐
- r/educationalgifs - Learn with GIFs ⭐
- r/explainlikeimfive - Have Anything Explained Very Simply ⭐
- The Punctuation Guide - Punctuation Guide ⭐
- AFAIK - Learning Map
- Alchemy Forums - Alchemy Forum
- AnimaGraffs - Animated Infographs
- Appropedia - Sustainability Wiki
- Astral Codex Ten (ACX) - Science, Psychology, and Philosophy Blog
- Awesome Educational Games - Educational Games Index
- Basic Knowledge 101 - Knowledgebase / Topic Learning
- British & Exotic Mineralogy - Mineralogy Database
- Common Misconceptions - Common Misconception Index
- Explorabl.es - Quizzes / Guides / Games
- HowStuffWorks - Learn How Things Work
- Information Is Beautiful - Data / Information / Infographics / Visualizations
- Learn Anything - Learning Resource Search / Free Method
- LitCharts - Literature Guides
- masterWiki - MasterClass Classes Republished as wikiHow Articles
- media.ccc.de - Educational Presentations
- Memory Toys - Memory Tests / Training
- OpenCulture - Learning Resources
- OSSU - Learning Resources
- P2PU - Join Learning Groups Using Free Courses
- ShipSpotting - Ship Index / Images
- Stack Exchange - Q&A Communities
- Ted Talks - Inspiring and Educational Talks
- The Free Learning List - Learning Resources
- Wakelet - Learning Resources
Virtual Tours
Section titled “Virtual Tours”- CityHop - Lofi Radio / City Walks ⭐
- 360Cities - 360 Images / Videos
- Basilica Viewer - St. Peter’s Basilica Tour
- BelowTheSurface - Archeological Object DB of Amsterdam
- Digital Giza - Great Pyramid Virtual Tours
- Gez.la - Virtual Tours Map
- Matterport - Explore Real Places Digitally
- Musei Vaticani - Virtual Museum Tours
- National Palace Museum - National Palace Museum Virtual Tours
- Natural History Museum - Natural History Museum Virtual Tour
- Persepolis Reimagined - Explore Persepolis Recreation
- Smithsonian 3D - Smithsonian 3D Digitization Museum
- Spitfire Panorama - Spitfire Mark IX Cockpit Interactve Panorama
- The Bayeux Tapestry - Bayeux Tapestry 3D Digitization
- Virtual Museum Resources - Online Museums
- Virtual Vist Tours - Ireland Virtual Tours
- Virtual Yosemite - Virtual Yosemite Tour
- Wiki Spaces - Virtual Tours
- WW2 in 100 Objects - WW2 Museum Virtual Tour
Science / Math
Section titled “Science / Math”- BOINC - Donate Idle GPU + GPU Resources to Scientific Research / Manager / Number Theory / Humanitarian
- LabXchange - Interactive Science Simulations
- TIB AV-Portal - Science Videos
Physics
Section titled “Physics”- Bartosz Ciechanowski - Physics Lessons / Learning ⭐
- Physics Simulations - Physics Simulations / Animations ⭐
- The Feynman Lectures - Physics Lectures ⭐
- 2 - Android TV Launchers
- Algodoo - Interactive Physics Tool
- avogadro - Molecular Viewers / Editors
- Bouncy Balls - Ball Physics Simulator
- Compare Pendulum - Pendulum Simulators
- Interactive 4D Handbook - Interactive Fourth Dimension
- LAMMPS - Molecular Dynamics (MD) Code
- LibreTexts Physics - Physics Learning / Guides
- nLab Physics - Physics Encyclopedia
- OpenFoam - Fluid Dynamics Simulators
- Physics Aviary - Physics Tools
- Physics Forums - Physics / Science Forum
- Physics Olympiads - ISODN Physics Discord Community
- QPaths - Learn Basic Quantum Terms
- Quantum Web Directory - Science / Tech / Math / Physics
- Ray Optics Simulation - Light Reflection / Refraction Simulator
- SimScale - Fluid Dynamics & Heat Transfer
- Simuwaerm - Heat Simulator
- Unihedron - Electromagnetic Radiation Spectrum Chart
- Virtual-Lab - Interactive Quantum Computing Lessons
- WebGL Water - Water Simulation
- AoPS Alcumus - Adaptive Problem Solving ⭐
- BetterExplained - Math Guides / Courses ⭐
- Manim - Generate Explanatory Math Videos / Videos / Difference Between Versions ⭐
- Number Academy - Encyclopedia of Numbers ⭐
- Open Source Society University - Math Roadmap ⭐
- WolframAlpha - Searchable Knowledge Base / Mobile (search) ⭐
- Wumbo - Math Reference Site ⭐
- Algebra Rules - Learn Algebra Rules
- Algebrica - Mathematical Concepts Database
- Awesome Math - Math Resources
- Brainstellar Puzzles - Puzzles from Quant Interviews
- Calculus Made Easy - Learn Calculus
- CLP - Calculus Textbooks
- Converter Pro - Unit Converters / Calculators
- Coolmath Games - Math Games
- Cut The Knot - Math Equations / Problems
- Fourier Transform - Interactive Fourier Transform Guide
- Giac/Xcas - Algebra System
- HSC Maths By Topic - HSC Math Practice
- Immortal's Maths Problems - Math Practice / Guides
- IMS - Introduction to Modern Statistics
- ISciDAVis - Scientific Data Plotter
- ISODN Math - ISODN Math Discord Community
- IXL Learning - Math Practice / Quizzes
- LibreTexts Statistic - Statistic Practice / Guides
- Math and Science Lectures - Index of Math + Science Video Courses
- Math Discord - Math Help / Community Discord
- Math is Fun - Math Tutorials / Puzzles / Games
- Mathcha - Online Math Editors
- Mathematical Olympiads - Mathematical Olympiads Discord Community
- Mathematics Roadmap - Mathematics Book Recommendations
- Mathispower4u - Math Lessons / Practice
- MathJax - JavaScript Math Display
- MathOnline - Math / Courses
- Matthen - Math Animations
- OEIS - Encyclopedia of Integer Sequences
- Open Logic Project - Math Logic Teaching Materials
- ParkMath - Math Guides
- Professor Leonard - YouTube Math Lessons
- Project Euler - Math / Programming Problems
- ProofWiki - Mathematical Proofs Encyclopedia
- Red Blob Games - Interactive Math Sites
- Seeing Theory - Statistics & Probability Tutorials
- SequenceDB - Sequence Machine
- Terence Tao Research - Mathematical Research
- Wolfram MathWorld - Mathematics Encyclopedias
Engineering
Section titled “Engineering”- KiCad - Schematics Editor / PCB Creator / SPICE Integration ⭐
- NPTEL - Engineering Courses ⭐
- r/AskEngineers - Engineering Subreddits ⭐
- /m/engineering - Engineering Multireddit
- 2 - Android TV Launchers
- 507 Movements - Mechanical Movement Animations
- Animated Engines - Engine Animations / Explanations
- Awesome Electronics - Electronic Engineering Resources
- Awesome Mecheng - Mechanical Engineering Resources
- BatteryUniversity - Learn About Batteries
- Build List - On-Demand Online Manufacturers
- CESDB - Engineering Software
- Circuit Steps - Circuit Analysis Tool
- Cyberbotics - Robot Simulator
- Diode - 3D Hardware Simulator
- Electronics Tutorials - Electronic Guides
- Engineering Blogs
- Falstad - Electronic Circuit Design / Simulation Tools
- Hacker Fab - Semiconductor Documentation / Research
- HDLBits - Learn Circuit Design
- Humanity's Last Machine - Humanoid Robotics Hardware & Supply Chain Analysis
- IEEE Spectrum - Engineering Magazine / News
- LibreTexts Engineering - Engineering Learning / Guides
- McMaster - Free 3D Printable Hardware Parts + Tools
- OpenCores - Open-Source IP Cores Repository
- r/EngineeringStudents Resources - Engineering Student Resources
- RetroSix - Retro Console Repair Guides + Info
- Robot Shop - Robotics Forum
- Sanfoundry - Engineering Questions & Answers
- The Engineering Toolbox - Engineering Resources
- The Pinouts Book - Pinout Function Reference Guide
- VisRo Robotics - Robotics Learning
- Wokwi - Arduino / ESP32 Board Simulators
Aerospace Engineering
Section titled “Aerospace Engineering”- AerospaceWeb - Aerospace Info Database / Calculators / Q&A
- Airfoil Tools - Airfoil Coordinates / Dat Files
- Av8n - Aviation Physics Textbook
- Awesome Aerospace Engineering - Aerospace Engineering Learning Resources
- Awesome Flying FPV - Remote Copter / Plane Resources
- Boeing 737 Technical Site - B737 Technical Engineering Guides / History / / YouTube
- eCalc - Aerospace Engineering Calculators
- Falcon BMS - Falcon 4.0 Modernization Project / Wiki / Forum / YouTube
- Flight Mechanics - Aircraft Flight Mechanics Learning
- FlightGear - Open-Source Flight Simulator
- Half Cat Rocketry - Liquid Rocket Guide / Info / Resources / Documentation
- Hot Nozzle Society - High-Power Rocketry Guide / Community
- Jacobs Rocketry - Rocketry Info / Manuals
- JCRocket - Rocketry Technical Information / YouTube
- JetPhotos - Aircraft Indexes / Images
- Langostino - Decentralized AI Drone Pilot Platform / Learning
- MIT Rocket Team - Official MIT Rocket Team Wiki / Resources Wikipedia
- Nakka Rocketry - Rocket Technical Archive
- Open Drone Logbook - FOSS Drone Log
- OpenDroneMap - Drone Mapping Software
- openMotor - Internal Ballistics Simulator
- OpenRocket - Rocket Simulator / Wiki
- OpenVSP - Aircraft Geometry Tool
- OscarLiang.com - FPV Drone Tutorials / Reviews
- Outerzone - Vintage Model Airplane Plans
- r/AerospaceEngineering - Aerospace Engineering Community
- r/rocketry - Rocketry Community
- RCPlanes Online - RC Plane Aerodynamics / Guides
- Robert’s Rocket Project - LOX/Kerosene Liquid Rocket Info / Resources / Documentation
- RocketPy - High-Powered Rocket Simulator
- RocketReviews - Rocket Reviews / Test Results
- SeligSIM - Flight Simulators for RC Planes
- SmartCockpit - Aircraft Systems / Technical Manuals
- Stolen Drone - Stolen Drone Info
- The Rocketry Forum - Rocketry Forums / Community
- ThrustCurve - Rocket Motor Performance Database
- Tripoli Rocketry - High-Powered Rocket Resources / Info
- UAVs FYI - Drone Information, Guides and Resources
- UIUC Applied Aerodynamics Group - Airfoil Coordinates / Aerodynamic Research
- XFLR5 - Airfoils Analysis Tool
Chemistry
Section titled “Chemistry”- Internet Chemistry - Chemistry Search Index ⭐
- Lab Safety Guide / Intro ⭐
- LibreTexts Chemistry - Chemistry Texts ⭐
- 2 - Android TV Launchers
- Arkivoc - Journals
- Chemexper Chemical Directory - Chemical Directory
- Chemical Forums - Chemistry Forums
- ChemicalAid - Chemistry Calculators / Element Tables
- Chemistry Basics - Basics of General, Organic, and Biological Chemistry
- ChemistrySteps - Chemistry Practice / Guides
- ChemistryTalk - Tutorials / Experiments / Elements / Reference Articles
- ChemSpider - Chemical Structures
- ChemTube3D - Interactive 3D Chemistry Animations
- Cliffnotes Chemistry - Study Guides* ReactionFlash / iOS - Chemical Reaction Flashcards
- Colorado Chemistry Simulations - Chemistry Animations
- CommonOrganicChemistry - Common Reactions / Common Reagents
- Compound Interest - Chemistry Infographics
- IGOC - Illustrated Glossary of Organic Chemistry
- ISODN Chemistry - ISODN Chemistry Discord Community
- Merck Index - Online Merck Index
- name-reaction - List of Name Reactions
- Organic Chemistry - Organic Reactions
- Organic Chemistry Data
- OrgSyn - Chemistry Prep Guides
- PubChem - Chemistry Wikis
- Sciencenotes - Periodic Tables / Chemistry Projects and Questions
- Video-Tutor - Chemistry Lessons
- WebQC Balance Calculator - Chemical Equation Balance Calculator
- Wolfram Alpha Chemistry - Chemistry Calculators / Tools
Periodic Tables
Section titled “Periodic Tables”- Images-of-elements - Element Images ⭐
- periodic-table.org - Material / Element Learning Resources ⭐
- Ptable - Interactive Table ⭐
- 2 - Android TV Launchers
- Atom Animation - 3D Visualizations of Atoms
- Periodic Table App - Interactive Table
- periodic-table.io - Interactive Table
- Photographic Periodic Table - Image-Based Periodic Table w/ Physical Examples
- WebElements - Interactive Table
- Zperiod - Interactive Table
Biology
Section titled “Biology”- Animalia - Animal Encyclopedia ⭐
- Lost and Found Nature - Rediscovered Animal / Plant Database ⭐
- OneZoom - Tree of Life Explorer ⭐
- Wikispecies - Species Databases ⭐
- 2 - Android TV Launchers
- Alien - Artificial Life Simulator / Video
- AntWeb - Ant Species Database
- Backyard Chickens - Chicken Raising Forum
- Biodiversity Heritage Library - Biodiversity Research
- Biology Online - Biology Articles
- BioNinja - IB Biology Reference / Study Guide
- BirdLife DataZone - Bird Conservation Information
- BirdSounds - Thousands of Bird Sounds Visualized
- BugGuide - Insect Identification Community
- eBird - Bird Species Databases / IDs
- EuroBirdPortal - European Bird Distribution Map
- Featherbase - Bird Feather Database
- iNaturalist - Organism Identification
- ISODN Biology - ISODN Biology Discord Community
- LibreTexts Biology - Biology Learning / Guides
- Life Under the Ice - View Antarctic Microbes
- Macroinvertebrates - Freshwater Macroinvertebrates Atlas
- Metazooa - Species Connection Game
- Ocearch - Track Marine Life
- Pattern Radio - Listen to Whale Songs
- Phenome10K - Biological / Palaeontological 3D Scans
- Pteros - Pterosaur Database
- RecentlyExtinctSpecies - Recently Extinct Species Database
- Science Geek - Biology Study Guides
- Spider ID - Spider Species Database / Identification Community
- The Biology Project - Biology Problem Sets & Tutorials
- The Deep Sea - Interactive Deep Sea Life Guide
- The Ferns - Tropical Plant Database
- UniProt - Protein Database
- Wayne's Word - Biology and Botany Information / Learning
- WFO - Plant Database
- WhyDoCatsAndDogs...? - Pet Q&A Site
Med School
Section titled “Med School”- Afratafreeh - Medical Video Courses and Books ⭐
- Khan Academy - Physiology / Pathology Overviews ⭐
- Radiopaedia - Radiology Resources ⭐
- Stop the Bleed - Free First Aid Video Courses / Resources ⭐
- Antibiotics Summary - Antibiotics Summary Image
- Calgary Guide - Disease Pathophysiology / Manifestation Flow-Charts
- CRAM - Medical Flashcards
- DeployedMedicine - Combat Medicine Guide / Manuals / Videos
- DermNet - Dermatology Reference Site
- ECG Wave-Maven: Self-Assessment Program - ECG Practice / Learning
- EMCrit - Emergency Medicine Information
- Emergency Medicine Cases - EM Case Index
- EMRap - Emergency Medicine Videos
- Epidemic Calculator - COVID Data
- EyeWiki - Eye Encyclopedia
- Geeky Medics - Clinical Guides
- Get Body Smart - Anatomy Guides
- Healio ECG Review - ECG Information
- HemOnc - Hematology / Oncology Reference Site
- Hyper Heart - Massey University Heart Animation
- Inner Body - Anatomy Atlas (2D&3D)
- LibreTexts Med - Medical Learning / Guides
- MalaCards - Human Disease Database
- MDCalc - Medical Reference Sites / Tools
- Nextstrain - Pathogen Evolution Tracking
- NIH Print - Biomedical Science 3D Models
- Passmedicine - UCAT Practice Questions
- Pathology Outlines - Pathology Info
- r/MedicalSchool Wiki - Med School Resources
- r/medicalschoolanki - Community for Medical Anki Cards
- Sectional Anatomy - Cross Sectional Educational MRI / CT Scans
- Steves Classic Baseball - Baseball Replays
- The Iowa Virtual Slidebox - Pathology Atlas Software
- Tulane University Pharmacology - Pharmacology Info & Quizzes
- UCAT Score - UCAT Score Converter
- University of Minnesota Histology - Histology Guides
- University of Utah Pathology - Pathology Guide
- Zygote Body - 3D Human Anatomical Models
- March to the Moon - Apollo (Missions) Images ⭐
- NASA - National Aeronautics and Space Administration Website / Images / Audio / Documents / APIs / History ⭐
- r/Space - Space Subreddit ⭐
- Space Dashboard - Space Live Stream Dashboard ⭐
- Apollo in Realtime - Interactive Apollo Missions
- Artemis II Photo Timeline - Artemis II Photo & Video Timeline
- Cosmos2025 - Interactive Universe Scales
- CSA - Canadian Space Agency Website
- Encyclopedia Astronautica - Space Encyclopedia
- ESA - European Space Agency Website
- ExoplanetArchive - Exoplanet Database
- ExoplanetExplore - Interactive Exoplanet Visualization
- ISODN Earth Science - ISODN Earth Science Discord Community
- ISRO - Indian Space Research Organization
- JAXA - Japanese Space Agency Website / Images / Videos
- Marspedia - Mars Wiki
- NASA History - NASA Books
- NASA's Eyes - 3D Space Visualizations / Solar System
- RGV Aerial Photography - Aerial Photography Community / News
- Russian Space Web - Russian Space Program News / History
- Space.com - Space News
- TheCMB - 3D Cosmic Microwave Background Model
Astronomy
Section titled “Astronomy”- In The Sky - Astronomy News / Interactive Guides ⭐
- JPL Photojournal - JPL Planetary Image Archives ⭐
- NASA2Explore - Astronomy Images ⭐
- 1 Pixel moon - Solar System Scale Model
- Aladin - Astronomical Image quar fViewer / Lite Version
- AndroidPlanisphere - Android Star Chart
- APOD - Daily NASA Astronomy Images
- Astrogeology - Planetary Maps
- CelesTrack - Earth Orbit Visualization
- Clear Dark Sky - Star Gazing Weather Forecasts
- Dark Site Finder - Star Gazing Site Locators
- Earth and Moon Viewer - Earth / Moon Latitude and Longitude Viewer
- ESA Hubble - Hubble Telescope Images
- ESAsky - Public Astronomical Data
- Free Astronomy Resources - Books / Notes / Astronomy / Physics
- ISODN Astronomy & Astrophysics - ISODN Astronomy & Astrophysics Discord Community
- James Webb Space Telescope - Webb Space Telescope Sites
- Live Meteors - Live Meteor Radio Echoes
- Meteor Showers - 3D Meteor Shower Visualization
- Nights on Earth - Astronomical Event Calendar
- Planet Globe - Virtual Globes
- r/SpacePorn - Astrophotography Subreddits
- SDO Dashboard - Live Sun Feed
- Siril - Astronomical Image Processor
- Sky Calendar - Astronomy Calendar
- Space Object Comparison - Compare Sizes Of Celestial Objects
- Space Weather News - Space Weather Updates / Videos
- Stellarium-Web - Virtual Stellariums
- SunCalc - Sun / Moon Position
- TheSkyLive - Solar System Simulators / Information
- ViewSpace - Space Videos and Digital Interactives
- Webb Compare - Webb / Hubble Images
- WikiSky - Interactive Star Visualizations
- WorldwideTelescope - Interactive Telescope Data / Home Page
Spacecraft
Section titled “Spacecraft”- EarthData - Daily Satellite Replays ⭐
- Visible Earth - Satellite Imagery ⭐
- Andegraf Rockets - Rocket Diagrams
- Gunter's Space Page - Satellite Encyclopedia / Launch Database
- ISS In Realtime - Historical ISS Mission Replays / Database
- ISS Sim - ISS Docking Simulator
- Leolabs Space - Low Earth Orbit Simulator
- NASASpaceFlight - Launch Livestreams / News / Forum / / YouTube
- Next Spaceflight - Rocket Launch / Space Flight Trackers
- Orbiter - Open Source Spaceflight Simulator
- Ringwatchers - Starship Diagrams / Articles / Community
- Satellite Map - Satellite Orbit Maps / Trackers
- See A Satellite Tonight - Satellite Viewing Schedule / Locations
- Sen - ISS Live Feed + Video Archive / YouTube
- Spacebook - Evaluates / Tracks Satellite Collision Risks & Maneuvers
- Spaceflight Archive - Rocket Launch History / Visualizations / Stats
- Sven's Space Place - Space Mission Technical Analysis
- TonyBela Infographics - Spacecraft / Rocket Infographics
- Transit Finder - ISS Transit Tracking
History
Section titled “History”- Histography - History Timelines ⭐
- MorbidKuriosity - Dark History, Conspiracies, Crime, Myths, etc. ⭐
- 911 Realtime - 9/11 in Real-Time
- Arachne - Archaeology Object Database
- Athena - Greek History Encyclopedia
- BlackPast - African History Encyclopedia
- CARI - Design Aesthetics History
- ChinesePosters - Chinese Propaganda Poster History
- EyewitnesstoHistory - Historical Eyewitness Testimonies
- Fashion History Timeline - Historical Fashion Resources / History
- Forebears - Name Etymologies
- Gode Cookery - Authentic Medieval Recipes & Historical Info
- gwulo - Historical Hong Kong Photo Archive
- LibreTexts History - History Learning Texts
- ManuscriptMiniatures - Medieval Manuscript Images
- Mission US - American History Learning Games
- Museo - Museum Search
- OnThisDay - What Happened on Specific Days
- PessimistsArchive - Historical Technological Pessimism Archive
- Royal Armouries Collections - Ancient Armaments Museum
- Royal Constellations - Royal Family Ancestral Visualization
- Shorpy - Historical Photos
- SmartHistory - Art / Cultural Object History
- The Food Timeline - Food History Timeline
- WildWinds - Ancient Numismatics / Coin Database
Tech History
Section titled “Tech History”- Historical Tech Tree - Historical Discovery / Tech Timelines ⭐
- BetaWiki - Operating System / Software History
- Crypto Museum - Cryptographic Machine History
- ETHW - Engineering and Technology History Wiki
- Folklore - Apple Computer History
- info.cern - First Website on the Internet
- InfoMesh - Web History / Info
- KilledByGoogle - Dead Projects Archives
- MobilePhoneMuseum - Mobile Phone History / Info
- Museum of Obsolete Media - Physical Media Format Wiki / History
- NuclearWeaponArchive - Nuclear Weapons History
- Old Computer Museum - Computer History
- The HP 9845 Project - HP 9845 Computer History
- The Retro Web - Computer Hardware History
- TubeVault - Archive of Oldest YouTube Users & Videos
- VersionMuseum - Website History / Info
- VGA Museum - Graphic Cards History
- Virus Encyclopedia - Computer Virus History
- WalkmanLand - Walkman History / Database
Mythology / Folklore
Section titled “Mythology / Folklore”- GodChecker - Religion / Mythology History ⭐
- Theoi - Greek Mythology ⭐
- ABookOfCreatures - Mythological Encyclopedias
- Encyclopedia Mythica - Mythology / Folklore / Religion
- FolkTexts - Mythology / Folklore
- Germanic Mythology
- Inuit Myths - Inuit Mythology
- Japanese Mythology - Japanese Mythology / Folklore
- Mythology.net - Mythology / Religion
- ObscUrban Legend Wiki - Mythology / Urban Legends
Humanities
Section titled “Humanities”Geography / Sociology
Section titled “Geography / Sociology”- Ekvis - Geography Quiz Sites ⭐
- Integrity Index - US Political Finance Integrity Database ⭐
- Our World in Data - World Problem Database ⭐
- The Atlas of Economic Complexity - Global Economic Growth Data ⭐
- Worldometer - World Data & Statistics ⭐
- 8000ers - Mountain Visualization & Info
- AntipodesMap - Find Antipodes
- Awesome Datasets - Public Datasets
- BLS - U.S. Bureau of Labor Statistics
- City Data - US City Data
- Climate Data - Climate Change Data
- Country Infographics - Country Infographic Images
- Cultural Atlas - World Culture / Religion Guides
- Data Commons - Data Visualizations
- DataUNODC - Drug / Crime Statistics
- Dollar Street - Compare Homes by Country / Income
- En-ROADS - Climate Solutions Simulator
- EverySecond - Visualize Per Second Data
- Expatistan - Cost of Living Calculator
- ExtremeWeatherWatch - Extreme Weather Data / Tracking
- Flag Guesser - Flag Quizzes / Guessing
- Flag Stories - Flag Design Breakdowns
- FlagLog - Flag Databases
- Global Volcanism Program - Volcano Information Database
- GovTrack - US Government Legislation Tracking / Votes
- Gun Violence Archive - Gun Violence Statistics
- iCivics - U.S. Law Learning Games
- If It Were My Home - Country Data Comparisons
- Incarceration in Real Numbers - Incarceration Visualization / Facts
- LibreTexts Social Science - Social Science Learning
- Maps.com - Interesting / Educational Maps
- NationsEncyclopedia - Location / Population Data
- Netblocks - Find Impact of Internet Shutdown on Economy
- OEC - Global Trade Data
- OEC Games - Trade Data Games
- OpenSecrets - Government Money Tracking
- Opportunity Atlas - Interactive Future Success Impact Map
- Rulers.org - World Heads Of State & Government Database
- Soar - Atlases
- Statista - Market Statistics
- Symbols - Symbol Database
- Teuteuf - Country Guessing Games
- The True Size - Compare Country Size
- Trans Rights Map - Trans Legal Rights Map / Policy Tracking
- Unequal Scenes - Scenes of Inequality Around the World
- Wealth, Shown to Scale - Wealth Inequality Visualization / Facts
- WikiMapped - 1.3M Wikipedia Articles Geolocated on Map
- World Births and Deaths - World Birth / Death Rates Visualization
- WorldLicensePlates - World License Plate Index
- WorldPoverty - World Poverty Data
Philosophy
Section titled “Philosophy”- Stanford Encyclopedia of Philosophy - Philosophy Encyclopedias / Search ⭐
- 1000-Word Philosophy - 1000-Word Essays on Philosophical Topics
- Art of Manliness - Develop Life Skills
- Brainkit - Learn Helpful Principles
- Effective Altruism Forum - Effective Altruism Learning / Forum
- IEoP - Learn about Logical Fallacies
- Kialo - Debates / Discussion
- Logitext - Sequent Calculus Tutorial
- ModalLogic - Model Logic Playground
- Philosophy Bro - Philosophy Resources / Learning
- Philosophy Stack Exchange - Philosophy Forum
- Proofs - Natural Deduction Proof Checker
- PropCalc - Propositional Logic Calculator
- RationalWiki - Pseudoscience Refutation Wiki
- Sketchplanations - Explanation Sketches
- Social Engineers - Social Engineering Guides
- The Trolley Problem Game - The Trolley Problem
- Umsu - Analytic Tableaux Generator
- Untools - Better Thinking Tools
- WikEnigma - 'Known Unknowns' Wiki
- Wireless Philosophy - Philosophy Videos
- YourBias.is - Learn about Biases
Skills / Hobbies / DIY
Section titled “Skills / Hobbies / DIY”- Knots 3D - Learn to Tie Knots ⭐
- ActivistHandbook - Campaigning / Activism Guides
- Antique Pattern Library
- ARRL - Amateur Radio Resources / Learning / Exam Search / Question Pools
- AXM Paper Space Scale Models - Spacecraft Paper Models
- Bridge Command - Bridge Command Ship Simulator
- diyhpluswiki - DIY Biohacking
- Erowid - Psychoactive Information / Forum
- Fold N Fly - Paper Airplane Guides
- HamExam - Ham Radio Practice Exams
- HypnosisChatBooks - Hypnosis / Telegram
- Ian's Shoelace Site - Learn to Tie Shoelaces
- LibraryOfJuggling - Juggling Technique Database
- Lock Picking 101 - Lock Picking Forum
- Low Tech Magazine - Sustainable DIY Tech Guides
- Make it Yourself - DIY Projects / Crafts
- Online Coin Club - Coin Collectors Database / Info
- PaperToys - Printable Paper Toys
- PEmbroider - Embroidery Generator
- Perry Morse - Learn / Practice Morse Code
- PsychonautWiki - Psychonautics Wiki
- Ravelry - Fiber Artist Tools
- RSN Stitch Bank - Embroidery Stiches / Lessons
- Toys from Trash - Use Everyday Items to Make Toys
- UER - Urban Exploration / Abandoned Place Forum / MAP
- WildWinds - Ancient Numismatics / Coin Database
- Muted - Music Theory ⭐
- #fretflip - Create / Print Guitar Scales & Chord Charts
- 911tabs - Tabs
- A-Complete-UTAU-Tutorial-For-Beginners - UTAU Tutorial
- Arpeggiator - Chord Progression Generators
- AudioZ - Audio Courses / Forum
- Awesome Music Theory - Music Theory Resources
- ChiffAndFipple - Irish Traditional Music Forum
- Chorder - Guitar Chord Finder
- Circle of Fifths - Visualize Notes, Cords and Keys
- coop3rdrumm3r - Drum Lessons
- FretFlip - Learn Guitar Scales / Chords
- Guitar Fretboard - Virtual Fretboards / Guitar Lessons
- Helio - Music Composition Tools
- HookTheory - Chord Progression Library
- JamStart - Spotify Chord Charts
- Jazz Improvisor - Improvised Jazz
- JustinGuitar - Guitar Lessons
- Keyboard Connect - Keyboard Tutoring App
- Learning Music - Music-Making Lessons
- LearningSynths - Synthesizers
- LibreTexts Music - Music Learning
- LilyPond - Music Engraving Program
- Midiano - Piano Practice / Learning
- MIMO - Musical Instrument Database
- MusicKit - Metronome, Tuner & Tone Generators
- MusicStaff - Music Teacher Search
- PerfectPitch - Pitch Recognition Practice
- Piano Scribe - Piano Transcriber
- ProducerLibrary - Audio Production Tutorials
- ScoreCloud - Chord Detection / Transcriber
- Sight Singing Factory - Sight Singing Practice
- TrueToneGuitar - Guitar Tools
- Tuner Ninja - Instrument Tuner
- Ultimate Guitar - Guitar Tabs
- VGM Sound Sources
Art / Editing
Section titled “Art / Editing”- Art Study Guide - Art Study Guides / Tips ⭐
- Drawabox - Drawing Lessons ⭐
- PaintingTube - Art Video Tutorials ⭐
- Proko - Figure Drawing Lessons ⭐
- Agora - Animation Learning Community / Tutorials
- AMV101 - Animated Music Video-Making Guides
- AnatomyArchive - Human Anatomy Drawing Tutorials
- Anime Study General - Anime Production Community
- AnimeOutline - Anime / Manga Drawing Tutorials
- Artist Reference - Photo References for Artists
- ArtWithFlo - Procreate Tutorials
- AwesomeAnimeResearch - Anime Machine Learning
- cg_tuts - CG Tutorials
- Character Design References - Character Design Visual Library
- Creator Resources - Art & Animation Resource Index
- Curriculum for the Solo Artists - Self-Taught Artist Curriculum
- Design Tuts - Design Tutorials
- DevinKorwin Color Guide - Color in Paintings Guide
- Dimensions - Object Dimension Reference
- DoArtDaily - Daily Art Challenges
- DomDesigns - Illustrator Tutorials
- Draw Mix Paint - Learn Oil Painting
- Drawingbooks.org - Old Drawing Books
- DrawingNow - Learn to Draw
- FloobyNooby - Storyboard Guides
- GraphicsCodex - 3D Computer Graphic Guides
- Line of Action - Figure Sketch Tools / Lessons
- McLelun - Anime Style Background Tutorial
- MetPublications - Art Learning Books
- Online-Courses - Art / Design Courses
- Paintable - Digital Art Tutorials
- Painting Demos - Painting Demonstrations
- Pedro's Pixel Art Tutorials - Pixel Art Tutorials
- PhotoshopTraining - Photoshop YouTube Tutorials
- PhotoshopTutorials.ws - Photoshop Tutorials
- Practice Drawing This - Drawing Practice
- Reference Angle - Human Photo Reference Search
- Settei Dreams - Anime Production Materials
- Seven Camels - Storyboarding Tips / Learning by Disney's Head of Story
- The Bézier Game - Pen Tool Practice
- Thomas Romain Perspective - Perspective Guide
- TutsPlus - Creative Courses
- Ubu - Avant-Garde Artifacts
- x6ud - Animal Photo Reference Search
Rubiks Cube
Section titled “Rubiks Cube”- CubeDesk - Feature-Rich Cubing Timers ⭐
- J Perm - Cubing Tutorials / Practice Resources ⭐
- SpeedCubeDB - Algorithm Database ⭐
- alg.cubing.net - Algorithm Animators / Visualizers
- BlindTrainer - Blindfolded Rubinks Trainer
- crystalcube - CFOP Cross Trainer / Edge Orientation Trainer
- Cubing.net - Cubing Tools
- F2L Trainer - Algorithm-Specific Trainers
- F2L Trainer - F2L Rubiks Trainer
- Hypercubing - Hypercubing Wiki
- qqTimer - Cubing Timer
- Roux Trainers - Learn Roux Solving Method
- Rubiks Cube Guide - Guide to Rubiks Cube / Resources
- SolveTheCube - Cubing Timer
- Speedcube.app - Cubing Timer (Mobile-Friendly)
- SpeedSolving - Cubing Wiki / Community Forum
- World Cube Association - Cubing Competitions & Records
- ZZ Method - Learn / Practice ZZ 3x3 Rubiks Speedrunning Method
- Scid vs. PC - Learn / Practice Chess ⭐
- /m/Chess - Chess Subreddits
- 2700chess - Live Chess Player Ratings
- 365Chess - Chess History / Lessons
- Awesome Chess - Chess Resources
- Chess Analysis - Chess Game / Move Analysis
- Chess Monitor - Track Chess Analytics
- Chess OCR - Multi-Site Digital Chessboard Analysis
- Chess Tempo - Chess Practice
- Chess Vision - Chess Game / Move Analysis
- Chessable - Chess Lessons
- ChessGames - Chess Database / Community
- Chessigma - Chess Game / Move Analysis
- Chesskit - Chess Game / Move Analysis
- ChessLab - Chess Lessons
- ChessVariants - 1000+ Chess Variants + Guides
- En Croissant - Chess Game / Move Analysis
- HerculesChess - Learn / Practice Chess
- Listudy - Chess Lessons
- Lucas Chess - Chess Practice
- OpeningTree - Download / Visualize Chess Games
- Pawn Appétit - Chess Game / Move Analysis
- r/Chess Books - Recommended Chess Books
- Shâh Kur - Blind Chess Practice / Improve Board Visualization
- Tactic or Not - Chess Move Analysis / Practice
- TheChessWebsite - Learn / Practice Chess
- WintrChess - Chess Game / Move Analysis
- YottaChess - Chess Game / Move Analysis
Dungeons & Dragons
Section titled “Dungeons & Dragons”- 5etools - Rules & Content References ⭐
- D&D Beyond - Official Toolset for 5E ⭐
- D&D Compendium - D&D Tools & Learning Resources ⭐
- Kobold+ Fight Club - Encounter Builder & Balancer ⭐
- Avrae - D&D Automation Discord Bot
- Cruinne's D&D Reading Room - D&D Worldbuilding Checklist
- D&D Wiki - D&D Homebrew Wiki
- DiceCloud - D&D 5e Character Manager
- DMHeroes - D&D NPC Generator / Classic
- DnD-Books - D&D 4E/5E Books
- GM Binder - 5E Homebrew Document Editors
- Tetra-cube - Monster Statblock Generator
- Awesome Lego - LEGO Resources
- Brickognize - LEGO Brick / Minifigure Identification Tool
- Brickset - LEGO Set Database / Reviews / Marketplaces
- Mecabricks Workshop - Virtual LEGO Building
- Rebrickable - LEGO Collection Manager / Build Ideas
Language Learning
Section titled “Language Learning”Multi-Language
Section titled “Multi-Language”- Language Reactor - Learn Languages via Videos ⭐
- Language Transfer - Language Learning Lectures ⭐
- Omniglot - Writing System & Language Encyclopedia ⭐
- Readlang - Learn a Language via Web Browsing ⭐
- Ba Ba Dum - Language Learning Game
- clozemaster - Context-Based Language Learning
- Comprehensible Input Wiki - Learn Languages via Comprehensible Input
- DLIFLC - Language Learning Quizzes
- Interactive IPA Chart - Learn Phonetic Alphabet Symbols
- IPA Reader - International Phonetic Alphabet Reader
- Itchy Feet Comic - Asian Script Differentiation Guide
- Language Drops - Language Learning App with Thematic Vocab
- Language Learners - Language Learning Forum / Community
- Language Links - Language Learning Resources
- Language Roadmap - Foreign Language Media Difficulty Guide
- LanguageGuide - Visual Language Learning
- Languagelearning.site - Language Learning Torrents
- LearnWithOliver - Language Learning Flashcards
- Lengualytics - Comprehensible Input Tracker / Resources
- LexiLogos - Language Dictionary Indexes
- LingoDeer - Language Learning Lessons
- Lingotype - Learn Languages via Typing
- LingYourLanguage - Language Identification Test
- ListLang - Most Used Words in Any Language
- LocalLingual - Listen to Accents
- Lute - Learn a Language via Reading
- MORT - Learn Languages via Games
- MyLanguages - Grammar / Vocabulary Language Learning
- Plover - Stenography Engine
- Refold - Language Learning Roadmap
- ReverseDictionary - Search for Words Using Their Meanings
- Sounter - Learn Languages via Music
- Speechling - Language Learning Tools
- Talking Dictionaries - Endangered Language Dictionary Index
- TeachMeHebrew - Learn Hebrew
- Tōku Reo - Māori Language Learning Show
- Verbix - Verb Conjugator
- Vocatra - Vocabulary Trainers
- wehewehe - Hawaiian Dictionary
- WordReference - Translation Dictionary
- Yojik - Language Learning Courses
- Yomitan - Popup Dictionary
Language Exchange
Section titled “Language Exchange”- Conversation Exchange
- Episoden
- HiNative
- InterPals
- ISODN Linguistics - ISODN Linguistics Discord Community
- LangX
- Polyglot
- RhinoSpike
- Tandem
- The Language Exchange Network - Language Exchange Communities
English
Section titled “English”- CEFR Lookup - CEFR Word Level Lookup
- EFSET - English Proficiency Test
- elllo - English Listening Lessons / Practice
- Elsaspeak - Practice English Conversations
- EnglishAccentMap - English Accent Videos / Map
- EnglishBanana - English Learning Worksheets
- EnglishCentral - English Video Lessons
- ESOL - English Learning Resources
- Forvo - Pronunciation Dictionary
- Free4Talk - English Learning Communities
- Frenglish - English Learning Books
- GOA PsyTrance Livesets - DJ Livesets
- IELTS Liz - IELTS Test Preparation
- Langeek - Grammar / Vocabulary Language Learning
- Learn English Online - English Lessons
- Many Things - ESL Resources
- Podcasts in English - English Learning Podcasts
- Spanish-English - English Learning Community / Discord
- Spellcheck - English Spelling Game
- TalkEnglish - Improve Spoken English
- The Internet TESL Journal - Resources for EFL and ESL Teachers
- WriteAndImprove - Improve English Writing
- yell0wsuit - Word Learning Site
- youglish - YouTube Word Pronunciations
Japanese
Section titled “Japanese”- DelvinLanguage - Fill in Missing Japanese Words
- GetKanda - Learn Kana
- Japanese Pitch Accent Resources - Japanese Accent Resources
- JapaneseTab - Japanese Learning Extension
- JapaneseWithAnime - Learn Japanese via Anime / Manga
- jidoujisho - Learn Japanese via Books
- Jlpt N3 - Jlpt Exam Questions / Grammar
- Learn Japanese Grammar
- Memento - Japanese Learning Video Player
- Minato - Japanese Courses
- Nihongo con Teppei - Japanese Beginners Podcast
- OJAD - Japanese Accent Dictionary
- Supernative - Learn Japanese via Media
- VNClub - Learn Japanese via Visual Novels
- yame dame - Learning Resources
Korean
Section titled “Korean”- Learn Korean - Korean Learning Discord ⭐
- Hangul - Korean Typing Practice
- Hangul Practice - Hangul Recognition Test
- HowToStudyKorean - Korean Lessons / Practice
- iksi - Korean Classes
- Korean Trainer - Korean Numbers & Date Practice
- KoreanKeyboardLearner - Korean Typing Practice
- KR Dict - Korean Learning Dictionary
- LetsLearnHangul - Hangul Learning
- Mirinae - Korean Word Breakdown
- National Institute of Korean Language - Korean Dictionaries / Expression Practice
- Read Korean Letters - Learn Korean Characters
- Sogang - Korean Learning Lessons
- TalkToMeInKorean - Korean Learning Courses
- UltimateKorean - Korean Grammar / Vocab Lessons
Chinese
Section titled “Chinese”- r/ChineseLanguage - Chinese Learning Community ⭐
- Zhongwen - Learn via Classic Chinese Literature ⭐
- Cantonese Sheik
- Cantonese.ca - Chinese Vocabulary
- Chinese Flashcards
- Dictionary Variants - Dictionary of Chinese Character Variants
- HackingChinese - Chinese Learning Articles
- KongLongMandarin - Chinese Lessons
- LexList - Learn Chinese Characters
- Lindict - Chinese Dictionaries
- Maorma - Chinese Tone Practice
- Pleco - Chinese Flashcards / Dictionary
- Stroke Order - Chinese Writing Lessons / Stroke Orders
- The Chairman's Bao - Chinese Reading Practice / News Articles
- Train Chinese - Chinese Learning App
- YellowBridge - Chinese Learning Tools
Cantonese
Section titled “Cantonese”- 2 - Android TV Launchers
- Beginner's Cantonese - Cantonese Grammar Lesson
- Cantonese Character Database
- Cantonese Sheik
- Cantonese.ca - Chinese Vocabulary
- CantoWords - Cantonese Dictionary
- EdUHK - Cantonese Learning / Practice
- HKDict - Contemporary Cantonese-English Dictionary
- Jyutping - Learn Cantonese Romanization System
- Live Lingua Cantonese - Free Cantonese Courses
- OnlineCantonese - Cantonese Tone Practice
European
Section titled “European”- SpanishDict - Spanish Translation Dictionaries ⭐
- StudySpanish - Learn Spanish ⭐
- ancientgreek.jean.land - Ancient Greek Learning Site
- Easy Croatian - Croatian Language Learning
- FluentWithStories - Learn Spanish via Stories
- French Comprehensible Input - French Comprehensible Input Resources
- LCSpeakFrench - Live French Lessons
- Spanish-English - English Learning Community / Discord
- SpanishChecker - Spanish Grammar Check
- The French Tutorial - French Learning Tutorials
- The People's Dictionary - Swedish Translation Dictionary
- TV5MONDE - French Learning Videos
- Uusi Kielemme - Finnish Learning
German
Section titled “German”- DW German Course - German Learning Course ⭐
- German Discord - German Learning Community ⭐
- VHS Lernportal - German Learning Course / Mobile ⭐
- German Learning Roadmap - German Language Resources
- Linguee - German Translation Dictionaries
- Seedlang - German Learning App
- VerbForm - Create German Verb Anki Flashcards
South Asian
Section titled “South Asian”- Ambuda - Sanskrit Dictionaries / Texts
- Learn Sanskrit - Sanskrit Lessons and Tools
- Mga Nagmamarunong's Masterlist - Tagalog Learning Resources
- Rekhta Dictionary - Urdu Dictionary
- Sanskrit Subreddit - Sanskrit Resources / Discussion
- South Asian Languages - South Asian Language Learning
- UBC Sanskrit Learning Tools - UBC Sanskrit Lessons
- Urdu Resources - Urdu Learning Resources
- Urdupod101 - Urdu Grammar Overview / Video
Sign Languages
Section titled “Sign Languages”- ASL Dictionary - American Sign Language Dictionaries ⭐
- BSL Dictionary - British Sign Language Dictionaries ⭐
- SpreadTheSign - Multi-Language Dictionaries ⭐
- ASL Learning - ASL Learning Site
- ASL-LEX - ASL Visual Connections Map / Visualization
- BKS - British Key Word Signs
- DeafTec - STEM Sign Dictionaries / Search
- DeafVideo - ASL Vlogs + Videos / YouTube Style Site for Deaf Content
- DMDb - Deaf Movie Databases / Sign Language Films / Deaf Actors
- DPAN - Deaf Entertainment / News
- HandyBSL - Learn / Practice BSL
- Helping Hands - VR-Based Sign Language Practice / Classes
- International Sign - International Sign Language
- Interpreter Services - Specialized ASL Dictionary
- Learn BSL in SignWriting
- Learn NZSL - NZSL Learning Site
- NZSL - New Zealand Sign Language Dictionary
- Rochester ASL / LSF - ASL / LSF / Click Dictionary
- Sign AIP - Sign-Language Learning Videos
- Signbank - Australian Sign Language Dictionary
- SignFlow - Interactive Sign Dictionary / Learning
- SignLearner - Learn ASL or BSL while Browsing Internet / Chromium
- Signs - ASL Learning AI
- SignSchool - ASL Learning / Dictionary
- SignWriting - Sutton SignWriting System Learning + Resources
- SooSL - Create Custom Sign Language Dictionaries
- SSC - BSL Academic Term Dictionary
- Text to Sign - Convert Text to Fingerspelling in ASL or BSL
- The ASL Calendar - ASL Community / Resources
Constructed Languages
Section titled “Constructed Languages”- Eberban - Eberban Language Learning / Focused on Simplicity, Expressivness & Regularity
- Ithkuil - Ithkuil Learning / Focused on Logical Precision
- Languages of Arda - Guide to Tolkien Languages
- Learn Na'vi - Na’vi (Avatar) Language Learning / Community / Forum
- lipu tenpo - Toki Pona Magazine
- Lojban.io - Lojban Learning Resources / Focused on Logical Grammatical Structures
- ma pona pi toki pona - Toki Pona Community / Learning
- pona.la - Toki Pona Learning / Resources
- Semantic Spaces Dictionary - Toki Pona Word Explanations / Dictionary
- sona pona - Toki Pona Wiki / Minimal Language
- The Toaq Language - Toaq Learning Wiki / Course / Focused on Formal Logic
- Toki Pona (.net) - Toki Pona Learning Sites / Minimal Language
- Toki Pona Dictionary - Toki Pona Dictionaries
- Viossa Diskordseгver - Viossa Language Learning Community / Artificial Pidgin Language
- Xextan - Xextan Language Learning / Focused on Simplicity + Ease of Learning / Wiki
Developer Learning
Section titled “Developer Learning”- freeCodeCamp - Programming / Courses / Interactive ⭐
- git-cheat-sheet - Git Command Lists ⭐
- OpenVim - Interactive Vim Tutorials ⭐
- StarSQL - SQL Lessons / Practice ⭐
- 90DaysOfDevOps - Learn DevOps
- Advent of Code - Programming Puzzles
- Awesome Courses - Dev Course Indexes
- Awesome YouTubers - YouTube Dev Channels Indexes
- Beej's Guide to Git - Git Guides / Tips
- Beej's Guides - Programming Guides
- botwiki - Learn How to Make Bots
- Checki0 - Code Learning Games
- CLIG - CLI Design Guide
- CloudSkillsBoost - Programming Courses
- CodinGame - Games to Practice Coding / Programming
- Devops Exercises - DevOps Exercises
- DevToolTips - Developer Tips
- EggHead - Programming Courses
- First Timers Only - Contribution Guide for Beginners
- Git Time - Git Learning Game
- Git Tutorial - Interactive Git Tutorial
- Hack Club - Non-Profit High School Coding Community / Resources
- Hasura - GraphQL Courses
- High Assurance Rust - Software Development Guide
- Interview University - Software Engineer Study Guides
- Josh Comeau - Programming Tutorials
- Learn Git Branching - Interactive Git Branching Guide
- LearningSEO.io - SEO Learning
- LearnOpenGL - Learn OpenGL
- LearnToCloud - Cloud Computing Guide
- MOOC.fi - Programming Courses
- MySQL Tutorial
- Oh My Git! - Git Learning Game
- Path to Senior Engineer - Software Engineer Resources
- PostgreSQL Tutorial
- ProgrammingLearningResources - Programming Learning Resources
- Python Discord - Python Learning Resources
- Roadmap - Developer Roadmaps
- rTorr - Vim Editor Cheat Sheets
- Scratch - Beginner Programming Learning
- Scrimba - Interactive Programming Learning
- Server Survival - Tower Defense Game for learning Cloud Architecure
- SQL PD - SQL Learning Games
- Swift Playgrounds - Learn Swift UI / Samples
- System Design 101 - System Design Guides
- systemd-by-example - systemd Learning
- TechSchool - Programming Courses
- The Linux Kernel - Linux Kernel Development Guides / Archives
- USACO Guide - Competitive Programming Lessons
- Vim Adventures - Vim Learning Game
- Vim University - Vim Tips
- VimTip - Vim Editor Tips
- Workbench - Learn / Experiment with Gnome
Coding Tutorials
Section titled “Coding Tutorials”- Build your own X - Advanced Coding Tutorials ⭐
- calmcode - Video Tutorials
- Codelabs - Project Based Tutorials
- Ebook Foundation - Programming Ebooks
- Guru99 - Software / Web Development
- Programiz - General Coding Tutorials
- Project Based Learning - Collection of Project-Based Tutorials
- The SHA-256 Project - Learn to Develop SHA-256
- zetcode - Programming Notes / Ebooks
Programming Languages
Section titled “Programming Languages”- 30 Days Of Python - Python Programming Challenge ⭐
- A Byte of Python - Python Guide
- AmigosCode - Java / Kotlin Guides
- C++ Core Guidelines - C++ Tips
- CS50 - Python Course
- FutureCoder - Interactive Python Guide
- Genepy - Interactive Python Guide
- Hitchhiker's Guide to Python - Python Guide
- Learn C - C Tutorials
- Learn C++ - C++ Lessons / Tutorials
- Learn Next.js - Next.js Learning Resources
- Learn Perl
- Learn Python - Interactive Python Guide
- Learn-Python - Python Playground / Cheatsheet
- LearnGo - Learn Go Programming
- Makefile Tutorial
- Poignant - Learn Ruby
- Rust Learning - Rust Learning Resources
- Tea Press - Python Learning Book
- Typing.io - Programming Typing Practice / Sign-Up
Web Development
Section titled “Web Development”- FullStackOpen - Full Stack Course ⭐
- JavaScript.info - JavaScript Learning Sites ⭐
- LandChad - Site Development Guides ⭐
- Learn to Code HTML & CSS - HTML/CSS Course ⭐
- Odin Project - Programming / Courses / Interactive ⭐
- PHP: The Right Way - Learn PHP ⭐
- 100DayCSS - CSS Challenges
- 33 JS Concepts - Useful JavaScript Concepts
- Aquent Gymnasium - Web Dev Tutorials
- Awesome Network Analysis - Network Analysis Learning
- Backend Cheats - Backend Cheatsheet / Guide
- backend-challenges - Backend Challenges for Practice
- backendlore - Backend Coding Guides
- Cloud Cost Handbook - Public Cloud Hosting Cost Guide
- Codepip - CSS Learning Games
- Codevolution - Web Dev Video Lessons
- css-animation - CSS Animation Tutorial
- Dash - Web Dev Courses
- DefensiveCSS - CSS Tips
- DOM Events - Learn about DOM Events
- Flexbox Froggy - CSS Flexbox Learning Games
- Full Stack Solana Development Guide - Examples
- Guess CSS - CSS Guessing Game
- HEAD - HTML head Element Guide
- HTMLDog - HTML/CSS and JavaScript Tutorials
- JavaScript Questions - JavaScript Questions for Practice
- LearnCSSGrid - CSS Grid Guides
- MDN - Web Dev Learning Resources
- Packet.School - Interactive Networking Learning
- Pixactly - Test Pixel Dimension Orientation
- ReactStudyKit - React Study Tools / Flashcards
- STPG - Startpage Creation Guides
- The Copenhagen Book - Web App Auth Guidelines
- Untrusted - JavaScript Learning Game
- Web Design in 4 Minutes - Interactive Web Design Tutorial
- Web Dev for Beginners - Web Dev Course
- Web Skills - Web Dev Guides
- WebGL and GLSL Workshop - Interactive WebGL / GLSL Tutorial
- WebRTCForTheCurious - WebRTC Guide
- You Don't Know JS - JavaScript Learning Books
- You-Dont-Need-jQuery - JavaScript Query Style Events Guide
Computer Science
Section titled “Computer Science”- CraftingInterpreters - Scripting Language Implementation Book ⭐
- CS50 - Harvard Computer Science Course ⭐
- NandGame - Computer Building Puzzle ⭐
- Open Source Society University - Computer Science Roadmap ⭐
- TeachYourselfComputerScience - Computer Science Book Recommendations ⭐
- ApressOpen - Computer Science Books
- Big-O Cheatsheet - Computer Science Complexities Cheatsheet
- CEMC - Computer Science Courses
- Code.org - Computer Science Courses
- CollegeComendium - Computer Science Courses
- CompSciLib - Computer Science Tools
- Computer Science Lecture Links
- Computerphile - Computer Science YouTube Channels
- Copetti - In-depth Console Architecture Analysis
- CPU Land - What Happens when you run Programs
- CS Academy - Interactive Computer Science Lessons
- cs-video-courses - Computer Science Courses
- CS1000 - Computer Science / Software Engineering
- CSDIY - Computer Science Learning Guides
- CSRankings - Publication Activity of Computer Science Colleges per Topic
- Eylenburg - Hardware / Software Comparisons + History
- From Nand To Tetris - Computer Building Lesson
- Gwern.net - Gwern Branwen Essays (AI, Psychology, & Statistics)
- Modern Computer Science Curriculum - Computer Science Courses
- OSDev Wiki - Operating System Dev Wiki
- Papers We Love - Computer Science Research Papers
- ProfessorMesser - IT Courses
- Runestone Interactive - Interactive Guides
- SEE - Computer Science Courses
- System Design Academy - Large Scale System Design Learning
- Tech Dev Guide - Computer Science Google Courses
- Web Browser Engineering - Learn about Browser Engineering
- Wi is Fi - Wi-Fi Educational Guide
Data Science
Section titled “Data Science”- Open Source Society University - Data Science Roadmap ⭐
- 365Datascience - Data Science Courses
- Advanced R - R Guide / Solutions
- Awesome Data Analysis - Data Analysis Resources
- Awesome DataScience - Data Science Resources
- Data Engineer Handbook - Data Engineer Resources
- Data Engineering Practice Problems - Data Engineering Practice
- Data Engineering Zoomcamp - Data Engineering Course
- Data Science Ipython Notebooks - Learn DataScience
- Deepnote - Data Science Notebook
- ggplot2: Elegant Graphics for Data Analysis - ggplot2 Guide
- Learn to Make Netflix Clone
- Mage - Data Science Pipelines
- R for Data Science - R Data Science Guide
- R Packages - R Packages Guide
- Visualization.info - Learn About Data Visualization
- Zasper - Data Science IDE
- Zero to Nix - Nix Learning Guide
Data Structures
Section titled “Data Structures”- Leetcode - Coding Practice ⭐
- Solutions - Solutions, 2, 3, 4 / Company Questions / Animations / Anki Cards / Videos, 2 / Resources / Analytics ⭐
- algonds - Coding Practice
- Algorithm Visualizer - Visualize Code Algorithms
- algorithms - Code Algorithms & Data Structures Tutorials
- Algorithms Books - MIT Algorithm Focused Books
- Algorithms-Cheatsheet-Resources - Code Algorithm Cheat Sheets
- BuildBox - Hackathon / Challenge Communities
- Codility - Coding Practice
- Coding Questions - Coding Interview Questions
- CSES Problemset - Collection of Algorithmic Programming Problems
- Exercism - Programming Lessons
- Hello Algo - Data Structures and Algorithms Course
- JavaScript Algorithms - Algorithms and Data Structures in JavaScript
- LintCode - Coding Practice
- Memery Spy - Learn how Bytes Represent Variables
- NeetCode - Coding Interview Practice
- ProjectLearn - Coding Practice
- Rosetta Code - Coding Problems / Solutions
- VisuAlgo - Data Structure & Algorithm Visualizations
UI / UX
Section titled “UI / UX”- Can't Unsee - UI Design Test
- Deceptive Patterns - Deceptive User Experience Examples
- delightful humane design - Humane Design Resources
- design.tips - Design Tips
- Frontend Bootcamp - Frontend Workshop
- Frontend Learning Kit - Frontend Learning Index
- FrontEndMentor - Frontend Design Challenges
- HackDesign - UI / Webdesign Courses
- HTMLDog - HTML/CSS and JavaScript Tutorials
- Laws of UX - Maxims / Principles for UI Designers
- SitePoint - UX Design Courses & Books
- UI Coach - UI Design Challenge Generator
- UXTools - Learn UX Design
Cybersecurity
Section titled “Cybersecurity”- HackTricks - Practical Penetration Testing & Security Auditing Tips ⭐
- OWASP Cheatsheet - Application Security Guide ⭐
- PortSwigger Academy - Web Security Learning ⭐
- Addielamarr - Learn About Cybersecurity
- Awesome Sites to Test On - Cybersecurity Practice Sites
- CrackMyApp - Reverse Engineering Challenges
- CrypTool - Interactive Cryptology Learning / Puzzles
- CryptoPals - Cryptography Learning
- CTF Sites - CTF Resources / Guides
- Free Cyber Resources - Cybersecurity Learning Resources
- Free-Official-Youtube-Content - YouTube Channel List
- Hackers101 - Cybersecurity Challenges
- Hacksplaining - Developer Security Lessons
- How DNS Works - Learn DNS
- How DNSSEC Works - Learn DNSSEC
- How HTTPS Works - Learn HTTPS
- John Hammond - Cybersecurity YouTube Tutorials
- Nightmare - Binary Exploitation Defense / Reverse Engineering Course
- OverTheWire - Cybersecurity Learning Game
- Pentesting Bible - Learn Pentesting
- pwn.college - Cybersecurity Practice
- Reverse Engineering Academy - Interactive Reverse Engineering Lessons
- Skills for All - Cybersecurity Courses
- TryHackMe - Cybersecurity Lessons
- x86re - Reverse Engineering Guides
Game Development
Section titled “Game Development”- Brackeys - Game Dev Tutorials ⭐
- r/gamedev - Reddit Community ⭐
- 20 Games Challenge - Beginner Game Dev Challenges
- 8bitWorkshop - Retro Game Programming Tutorials
- Amit’s Game Programming - Game Programming Guide
- Awesome-Gamedev - Learning Resources
- CodeWisp - Interactive Beginner Game Dev Learning
- EmuDev - Emulator Development Information
- EmuDevs - NES Emulator Development Learning Game
- From Zero To Hero - 2D Game Dev Book
- Game Math - Mathematics Lessons for Game Devs
- GOA PsyTrance Livesets - DJ Livesets
- Graphics Workshop - Learn Computer Graphics
- Level Design Book - Level Design Guide / Book
- PICO-8 - Basic Game Dev Concepts / Web Version
- QB64SourceCode - QB64 Game Programming Tutorials
- SebastianLague - Game Dev Tutorials
- Shadertoy - Real-Time Shader Dev Platform
- The Book of Shaders - Fragment Shaders Guide
- Trig for Games - Trigonometry Lessons for Games
- Vulkan Guide - vulkan Learnin Guide
- Web Game Dev - Game Dev Guides
Exam Prep
Section titled “Exam Prep”- AllFreeDumps - Exam Papers / Study
- anthropology - UPSC Telegram Channel
- CaieFinder - Previous Cambridge Test Answers
- CatchaScience - IGCSE Study Notes / Resources
- CrackAP - Practice AP Exams
- free-clep-prep - Free CLEP / DSST Exam Prep
- FreeOnlineTest - Exam Practice Tests
- GaryChamberlainLectureNotes - Econometrics Lecture Notes
- Get Sum Math - GED Prep / Practice
- IBResources - International Baccalaureate Resources
- IGCSE Papers - Download Past GCSE / IGCSE Papers
- IndiaBIX - Aptitude Tests
- ITExams - IT Exam Collection
- NCERT Books - NCERT Practice Books
- nzqa.toasting - Download NZQA Past Papers
- Papers.Xtreme - Test Revision Notes & Answers
- Pearson's AP Universe - AP Exam Guides / Community
- r/APStudents Course Survey - AP Exam Comparison Spreadsheet
- r/CATpreparation - CAT Test Prep
- Revisely - GCSE Exam Help
- Science Career General - PhD / STEM Career Study Guides
SAT Testing
Section titled “SAT Testing”- Digital SAT Resources - SAT Resources
- DSATuz - SAT Practice Exams / Questions
- Mcelroy Tutoring - SAT Practice Exams / Questions
- OnePrep - SAT Practice Exams / Questions
- Sat DB - SAT Practice Exams / Questions / Requires Sign-Up
- SAT Question Bank - SAT Practice Exams / Questions
- SAT Reading - Suggested SAT Reading
- SAT Slayer - SAT Practice Exams / Questions
- SAT_Files_discussion - SAT Exam Discussion
- SATArchive - Previous SAT Test Archive
- The SAT: Practice Tests - SAT Practice Exams / Questions
JEE / NEET
Section titled “JEE / NEET”- ExamSide - PYQ Solutions / Practice Environment ⭐
- PhysicsWallah - JEE Lessons / YouTube ⭐
- PirateHive - Guides / Study Material ⭐
- DoubtNut - Exam / Solutions / Help / Ad-Bypass
- Genetry - JEE Lectures
- JEE Books - JEE Books Archives
- JEE Hub - JEE / NEET PYQs
- MarksAPP - Guides / Study Material
- r/JEENEETards Index - Guides / Study Material
- YouTube Lengths - Lecture Lengths / Data
Educational Tools
Section titled “Educational Tools”- Excalidraw - Whiteboards ⭐
- Altium - Schematics Visualizer
- BachelorStudies - Bachelor Degree Search
- Better Canvas - Canvas Enhancement Extension
- Edu VPN - Institute Access VPN
- Extracurriculars.org - Extracurricular Search
- FreeForStudent - Free Student Deals / Discounts
- GradesFixer - Essay Samples
- ImageJ - Scientific Image Analyzers
- Internet-In-A-Box - Create Free Offline Learning Hotspots
- nanoHUB - Nanotechnology Tools
- Niche - University / School Comparisons
- RateMyDorm - College Dorm Reviews
- RateMyProfessor - Professor Ratings
- Scholarship Roar - Scholarship Database
- The Chomsky Index - Noam Chomsky Content Index Tool
- Wolfram Cloud - Computational Intelligence
- Wordwall - Lesson Creator
Study / Research
Section titled “Study / Research”- Coursicle - Class Schedule Tracker ⭐
- OpenSyllabus - Syllabus Search / Info ⭐
- Refseek - Academic Search Engines ⭐
- StudyKit - Quizzes / Study Material ⭐
- StudyLion - Study Tracker / Productivity Discord Bot ⭐
- WolframAlpha - Searchable Knowledge Base / Mobile (search) ⭐
- Awesome Research - Research Tool Indexes
- Brainly - Homework Help Bots / Communities / Limit Bypass
- CalculateCGPA - Calculate GPA
- Catma - Research Markup & Analysis Tool
- cb2bib - Reference Extractors / Managers
- Cheatography - Educational Cheat Sheets
- Co-STORM - Generate Scientific Articles
- Driftly - Class Attendance Tracker
- ExpertFile - Industry / Academic Expert Search
- Foam - Knowledge Management System
- Free Numerade Videos - Homework Help Videos
- General Index - Article Metadata Mining Project
- Graded - Grades Tracker
- GradesCalculator - Calculate CGPA & GPA
- GROBID - Extract / Organize Scientific Document Info
- Helium - Class Schedule Tracker / Grade Tracker / Planner
- Inciteful - Find Connected Literature via Citations
- LearnedEasy - Create Summaries / Quizzes from Books
- Lurnby - Research Highlighting Tool
- MammothMemory - Visual Memory-Based Solutions
- MassiveMark - Convert LLM Chats to DOCX
- Modern Classroom - Improved Google Classroom Extension
- mybib - Citation Generators / Chrome
- OpenRefine - Data Cleaning
- Paper Trails - Academic Article / Paper Trackers
- Papertag - Attach Digital Content to Paper
- PLText - Plagiarism Checkers
- Publish or Perish - Citation Analyzer
- SciSpace - Research Chatbot
- Scrible - Research / Writing Platform
- Space Finder - UK Study Space Search
- StudyStream - Online Study Groups
- Taguette - Data Analysis Document Tagging
- Zotero - Research Assistant
Flashcards
Section titled “Flashcards”- Add-ons - Add-ons / Decks / Resources, 2 ⭐
- Anki - Flashcard App ⭐
- Anki Android - Anki Mobile Apps
- Flashcard Machine - Flashcard App
- Flashka - Online Flashcards
- Flippity - Online Flashcards
- Gizmo - Flashcard App
- NoteKnight - Online Flashcards
- RemNote - Flashcard App
- revisiondojo - Online Flashcards
- SearchifyX - Search Flashcards
- StudyCraft - Flashcard App
- StudyLib - Online Flashcards
Calculators
Section titled “Calculators”- GeoGebra - Graphing Calculators ⭐
- Omni Calculator - Calculators ⭐
- OpenCalc - Android Calculators ⭐
- WolframAlpha - Calculators ⭐
- Aqua Calc - Calculators
- arTIfiCE - TI CE Calculator Jailbreak
- CEmu - TI-84 Calculators
- Cymath - Math / Algebra Problem Solvers
- Kalker - Scientific Calculators
- MatrixCalc - Matrix Calculator
- numbr.dev - Calculators
- Numla - Live Calculative Notepads
- PlanetCalc - Calculators
- Qalculate - Desktop Calculator
- QwikTape - Note Style Calculator
- TICalc - TI Graphing Calculator Files
Dictionaries / Thesaurus
Section titled “Dictionaries / Thesaurus”- GoldenDict - Dictionary ⭐
- Merriam-Webster - Dictionary / Thesaurus ⭐
- NGrams - Word Usage Trackers ⭐
- OneLook - Multi Dictionary / Thesaurus Search ⭐
- The Piracy Glossary - Piracy Dictionary ⭐
- UrbanDictionary - Slang Word / Phrase Dictionaries ⭐
- Wiktionary - Dictionary ⭐
- Affixes.org - Affixes
- Cambridge Dictionary - Dictionary
- EtymOnline - Etymologies
- Eunoia - Words with No Translation
- Feeels - Emotion Synonym Chart
- Fraze.it - Sentence Search
- Historical Thesaurus of English - Historical Thesaurus
- Oxford English Dictionary - Dictionary / Bypass
- Ozdic - Collocation Dictionary
- Phrases.org - Phrase Dictionary
- Phrontistery - Obscure Word Dictionary
- PowerThesaurus - Thesaurus
- PrideFlags - LGBT Flag Index
- PyGlossary - Convert Dictionary Files
- StarlingDB - Advanced Linguistics Dictionary
- TheDevilsDictionary - Cynical Dictionary
- Time Traveler - Find Words First Printed Usage
- Unionpedia - Word Connections / Visualizers
- Wordnik - Dictionary
- WordSafety - Swear Word Indexes
Encyclopedias
Section titled “Encyclopedias”- EncycloSearch - Encyclopedia Search Engines ⭐
- Wikipedia - Encyclopedia / Content List ⭐
- WolframAlpha - Searchable Knowledge Base / Mobile (search) ⭐
- Britannica
- Citizendium
- Encyclopedia
- EverybodyWiki
- HandWiki
- InfoPlease
- List of Encyclopedias - Online Encyclopedia Index
- namuwiki - Korean Media
- NewWorldEncyclopedia
- Omniglot - Writing Systems & Languages Encyclopedia
- Refdesk
- Simple Wiki - Simplified Wikipedia / Auto-Redirect
- Wikitia
Wikipedia Tools
Section titled “Wikipedia Tools”- CDPedia - Offline View
- EntiTree - WikiData Visualization Tool
- HatNote - Top Pages
- Reversepedia - Page Connections
- Substance - Extract Markdown
- The Museum of All Things - 3D Virtual Wikipedia Museum
- UrlShortener - Shorten URLs
- wik - Wiki TUI
- Wiki Portals - Wiki Portals Navigation
- Wiki Timeline - Create Timelines from Wiki Articles
- WikiBoard - Pin Board Style Browser
- WikiNearby - Location Search