This curated collection features educational tools for AI integration, programming fundamentals, and customized learning platforms. Supports STEM education with practical resources for language learning, secure data practices, and ethical tech implementation in academic environments.
► Documentaries
- ⭐ IHaveNoTV
- ⭐ DocumentaryArea / Remove Watermark (or use PIP)
- ⭐ DocPlus
- ⭐ 1337x Documentaries / Torrent
- LearnOutLoud
- Top Documentary Films
- Media Burn Archive
- DocumentaryHeaven
- ARTE
- Documentary Network
- Documentary Storm
- Documentary Tube
- Rocumentaries
- WatchDocumentaries
- PBS
- Nat Geo
- Folkstreams
- Films For Action
- /r/Documentaries
- Open-Video
- Videoneat
- MVGroup
► Courses
▷ Streaming
- 🌐 Awesome Courses – Courses
- 🌐 Limnology – Educational YouTube Channels
- ⭐ Coursera – Courses / Financial Aid / Downloader
- ⭐ edX – Courses / Downloader
- ⭐ MitOpenCourseWare – Courses
- ⭐ Khan Academy – Courses / Downloader / Solver
- ⭐ Class Central – Search for Courses
- CourseBuffet or Course CSE – Multi-Site Course Search
- Git.ir – Courses
- OpenLearn – Courses
- Alison – Courses
- EbookFoundation Courses – Courses
- OpenCulture – Courses
- DigitalGarage – Google Courses
- Hillsdale College – Courses
- OpenHPI – Courses
- OLI – Courses
- LearnOutLoud – Documentaries / Courses
- Video Lectures – Lectures
- Gresham College – Lectures / YouTube
- Crash Course – Topic Crash Courses
▷ Downloading
- Note – Use redirect bypassers to skip annoying link shorteners.
- 🌐 Free-Courses-For-Everyone – Course Site Index
- ⭐ TutFlix – Courses / Drives / Sign-Up Opens Fridays
- ⭐ HackNation – Courses
- ⭐ tut4dl – Courses
- ⭐ Course Busters – Course Busters Access
- Revival – Courses
- FreeEducationWeb – Courses
- OneHack – Courses / Telegram
- FreeCourseSite, 2 – Courses
- technet24 – Courses
- AfraTafreeh – Courses
- learningDL – Courses / Leech Required
- LinkedIn_Learning – LinkedIn Courses
- CertCommunity – IT Cert Courses
- firerip – Fireship.io Course Downloader
▷ Torrenting
- Note – Remember to get a VPN before torrenting.
- Course Club – Courses
- FreeCourseSite – Courses
- Docspedia – Courses / Sign-Up Required
► Learning Sites
- 🌐 The Free Learning List – Learning Resources
- 🌐 Learn Anything – Learning Resource Search / Free Method
- 🌐 Wakelet – Learning Resources
- 🌐 WISC – Learning Resources
- 🌐 OpenCulture – Learning Resources
- 🌐 OSSU – Learning Resources / Discord
- 🌐 Awesome Educational Games – Educational Games Index
- 🌐 IQ Tests – IQ Test Sites / Accuracy Ratings
- ⭐ /r/coolguides or coolguid.es – Guides & Tutorials
- ⭐ /r/educationalgifs – Learn with GIFs
- ⭐ /r/explainlikeimfive – Have Anything Explained Very Simply
- ⭐ The Punctuation Guide – Punctuation Guide
- media.ccc.de – Educational Presentations
- Ted Talks – Inspiring and Educational Talks
- Stack Exchange or Quetre – Q&A Communities
- ISODN – International Science Olympiads Discord Community
- AFAIK – Learning Map / Discord
- Open Educational Resources – How to Search for Open Educational Resources
- AnimaGraffs – Animated Infographs
- Memory Toys, Dual N-Back or BrainScale – Memory Tests / Training
- Information Is Beautiful or HalcyonMaps – Data / Information / Infographics / Visualizations
- HowStuffWorks or CoolMindMaps – Learn How Things Work
- Common Misconceptions – Common Misconception Index
- masterWiki – MasterClass Classes Republished as wikiHow Articles
- LitCharts – Literature Guides
- Appropedia – Sustainability Wiki
- British & Exotic Mineralogy – Mineralogy Database
- AirVectors or PlaneSpotters – Aircraft Indexes / Images
- ShipSpotting – Ship Index / Images
- HerbologyY – Herbology / Telegram
- Alchemy Forums – Alchemy Forum
- P2PU – Join Learning Groups Using Free Courses
▷ Skills / Hobbies
- Rookie Road – Sport Guides
- Make it Yourself – 1000 DIY Projects / Video
- Animated Knots or NetKnots – Learn to Tie Knots
- Ian’s Shoelace Site – Learn to Tie Shoelaces
- Perry Morse, Morse Typing Trainer or ICWO – Learn / Practice Morse Code
- Lock Picking 101 – Lock Picking Forum
- LibraryOfJuggling – Juggling Technique Database
- diyhpluswiki – DIY Biohacking
- BeatBlackjack – Learn Blackjack Card Counting
- Excel Practice Online – Excel Practice / Guides
- ActivistHandbook – Campaigning / Activism Guides
- Bridge Command – Bridge Command Ship Simulator
- HypnosisChatBooks – Hypnosis / Telegram
- Erowid – Psychoactive Information
- PsychonautWiki – Psychonautics Wiki
- Shroomery – Magic Mushroom Forum
▷ Interactive Learning
- ⭐ PhET, Cognito, Academo – Interactive Lessons
- Explorabl.es, MinuteLabs, Wikiversity or Learnamic – Quizzes / Guides / Games
- LabXchange, JavaLab or EduMedia – Interactive Science Simulations
- Matthen – Math & Science Animations
▷ History
- ⭐ Historic Films or National Film Preservation Foundation – Historic Footage / Films
- ⭐ Histography or Oldest – History Timelines
- ⭐ MorbidKuriosity – Dark History, Conspiracies, Crime, Myths, etc.
- HistoryMaps – Learn History Visually
- Smithsonian Institution Archives or RareHistoricalPhotos – Historical Photos / Documents
- Imperial War Museums – Historic War Footage
- Museo – Museum Search
- Wonderous – Learn About Ancient Structures
- Shorpy – Historical Photos
- EyewitnesstoHistory – Historical Eyewitness Testimonies
- ManuscriptMiniatures – Medieval Manuscript Images
- BlackPast – African History Encyclopedia
- Athena – Greek History Encyclopedia
- Mission US – American History Learning Games
- OnThisDay or Curiosity Of The Day – What Happened on Specific Days
- Royal Constellations – Royal Family Ancestral Visualization
- Sciphilos or Calculating Empires – Historical Discovery Timelines
- ETHW – Engineering and Technology History Wiki
- Royal Armouries Collections – Ancient Armaments Museum
- NuclearWeaponArchive – Nuclear Weapons History
- 911 Realtime – 9/11 in Real-Time
- The Food Timeline – Food History Timeline
- Historical Recipes – Historical Recipes Site Index
- Arachne – Ancient Sculpture Image Archive
- SmartHistory – Art / Cultural Object History
- CARI – Design Aesthetics History
- ChinesePosters – Chinese Propaganda Poster History
- Historical Fashion – Historical Fashion Resources / History
- PessimistsArchive – Historical Technological Pessimism Archive
- Time Portal – History Clip Guessing
▷ Mythology / Folklore
- ABookOfCreatures, Demons of the Deep or Bestiary – Mythological Encyclopedias
- GodChecker – Religion / Mythology History
- ObscUrban Legend Wiki – Mythology / Urban Legends
- Encyclopedia Mythica – Mythology / Folklore / Religion
- Mythology.net – Mythology / Religion
- Japanese Mythology or Yokai – Japanese Mythology / Folklore
▷ Philosophy
- ⭐ Stanford Encyclopedia of Philosophy, IEP or nLab Philosophy – Philosophy Encyclopedias / Search
- Philosophy Bro, Reasoned, TheDailyIdea or PhilosophyBasics – Philosophy Resources / Learning
- Wireless Philosophy – Philosophy Videos
- Untools – Better Thinking Tools
- Brainkit – Learn Helpful Principles
- Art of Manliness – Develop Life Skills
- VisualizeValue – Life Lesson Visualizations
- Sketchplanations – Explanation Sketches
- IEoP, YouLogicalFallacyIs, FallacyFiles or LogicalFallacies – Learn about Logical Fallacies
- YourBias.is – Learn about Biases
- RationalWiki – Pseudoscience Refutation Wiki
- Advanced Logic Calculators
- Kialo – Debates / Discussion
- WikEnigma – ‘Known Unknowns’ Wiki
- The Trolley Problem Game – The Trolley Problem
- Social Engineers – Social Engineering Guides
▷ Music
- 🌐 Music Education Masterlist
- 🌐 Awesome Music Theory – Music Theory Resources
- 🌐 Music Outfitters – Music Services / Information
- ⭐ Muted, Open Music Theory / 2, Chromatone, Teoria, SimplifyingTheory, LightNote or Music Theory – Music Theory
- AudioZ – Audio Courses / Forum
- Helio or NoteHeads – Music Composition Tools
- MusicKit or Tone Generator – Metronome, Tuner & Tone Generators
- Tuner Ninja – Instrument Tuner
- Circle of Fifths – Visualize Notes, Cords & Keys
- ScoreCloud, ChordReader2 or Chordify – Chord Detection / Transcriber
- Arpeggiator, Chordi or AutoChords – Chord Progression Generators
- HookTheory – Chord Progression Library
- Piano Scribe – Piano Transcriber
- LilyPond – Music Engraving Program
- Learning Music or Musica – Music-Making Lessons
- Midiano / Discord, Piano Trainer, Chord Nebula, sightread or PianoCheetah – Piano Practice / Learning
- Keyboard Connect – Keyboard Tutoring App
- TrueToneGuitar, Songsterr / Premium, FAChords or ChordBook – Guitar Tools
- FretFlip, Oolimo, StringScales, My Fretboard Trainer or GuitarScale – Learn Guitar Scales / Chords
- JamStart – Spotify Chord Charts
- #fretflip – Create / Print Guitar Scales & Chord Charts
- JustinGuitar or Guitarsix – Guitar Lessons
- Ultimate Guitar – Guitar Tabs
- Chorder – Guitar Chord Finder
- Guitar Fretboard, Fretastic or Gitori – Virtual Fretboards / Guitar Lessons
- coop3rdrumm3r or FreeDrumLessons – Drum Lessons
- 911tabs or Finger Tabs – Tabs
- Jazz Improvisor – Improvised Jazz
- LearningSynths – Synthesizers
- Sight Singing Factory – Sight Singing Practice
- A-Complete-UTAU-Tutorial-For-Beginners – UTAU Tutorial
- PerfectPitch – Pitch Recognition Practice
- MusicStaff – Music Teacher Search
- ChiffAndFipple – Irish Traditional Music Forum
- MIMO – Musical Instrument Database
- VGM Sound Sources – VGM Sound Sources / Discord
▷ Art / Editing
- 🌐 Creator Resources – Art & Animation Resource Index
- 🌐 AwesomeAnimeResearch – Anime Machine Learning
- ⭐ Art Study Guide – Art Study Guides / Tips
- ⭐ Drawabox, Croquis Cafe, Drawing Starter Pack Playlist, FarsiTuts or Bill Martin’s Guide to Drawing – Drawing Lessons
- ⭐ Proko – Figure Drawing Lessons
- ⭐ PaintingTube, MarcoBucci, Alphonso Dunn, Feng Zhu FZD, Art Fundamentals or Circle Line Art – Art Video Tutorials
- online-courses – Art / Design Courses
- TutsPlus – Creative Courses
- Curriculum for the Solo Artists – Self-Taught Artist Curriculum / PDF Version / Gallery Version, 2
- DoArtDaily – Daily Art Challenges
- Character Design References – Character Design Visual Library
- FloobyNooby, Let’s Learn Storyboarding, JMMStoryboardTips or A Guide to Storyboards – Storyboard Guides
- MangaMaterials, animesijyuku or DoKiDoKiDrawing – Manga Video Tutorials / X / Pixiv
- Settei Dreams – Anime Production Materials
- Anime Study General – Anime Production Community
- McLelun – Anime Style Background Tutorial
- AnimeOutline – Anime / Manga Drawing Tutorials
- Design Tuts – Design Tutorials
- PhotoshopTutorials.ws – Photoshop Tutorials
- DomDesigns – Illustrator Tutorials
- PhotoshopTraining, Phlearn or PiXimperfect – Photoshop YouTube Tutorials
- The Book of Shaders – Fragment Shaders Guide
- The Bézier Game – Pen Tool Practice
- ArtWithFlo – Procreate Tutorials
- Paintable – Digital Art Tutorials
- Pedro’s Pixel Art Tutorials or SLYNYRD – Pixel Art Tutorials
- MetPublications – Art Learning Books
- GraphicsCodex – 3D Computer Graphic Guides
- DrawingNow – Learn to Draw
- Drawingbooks.org – Old Drawing Books
- Line of Action, Timed Figure Poses, LoveLifeDrawing or Daily Life Drawing Sessions – Figure Sketch Tools / Lessons
- Artist Reference – Photo References for Artists
- Reference Angle – Human Photo Reference Search
- x6ud – Animal Photo Reference Search
- Thomas Romain Perspective – Perspective Guide
- Dimensions – Object Dimension Reference
- The Dimensions Of Colour – Colour Theory Guide
- DevinKorwin Color Guide – Color in Paintings Guide
- Draw Mix Paint – Learn Oil Painting
- Painting Demos – Painting Demonstrations
- CG_Hacker, cg_tuts or cgreferenceshub – CG Tutorials
- Agora – Animation Learning Community / Tutorials / Discord
- AMV101 – Animated Music Video-Making Guides
▷ Geography / Sociology
- 🌐 Awesome Datasets – Public Datasets
- 🌐 Country Infographics – Country Infographic Images
- ⭐ Worldometer, TheScaleOfLife, WorldBank, US Census, DataUSA, Ozymandias, Data.gov or UN Data – World Data & Statistics
- ⭐ Our World in Data – World Problem Database
- ⭐ The Atlas of Economic Complexity – Global Economic Growth Data
- ⭐ Soar – Digital Atlas
- Maps.com – Interesting / Educational Maps
- LizardPoint, Worldle, Learn World Map, Seterra or Teuteuf – Geography Guessing / Quizzes
- AntipodesMap – Find Antipodes
- The True Size or True Size of Countries – Compare Country Size
- NationsEncyclopedia – Location / Population Data
- City Data – US City Data
- Data Commons – Data Visualizations
- Global Consciousness Project – Real-Time Global Consciousness Data
- If It Were My Home, GlobalEdge or MyLifeElsewhere – Country Data Comparisons
- WorldPoverty – World Poverty Data
- Dollar Street – Compare Homes by Country / Income
- Unequal Scenes – Scenes of Inequality Around the World
- EverySecond – Visualize Per Second Data
- OEC or UN Comtrade – Global Trade Data
- Statista – Market Statistics
- Netblocks – Find Impact of Internet Shutdown on Economy
- Rulers.org – World Heads Of State & Government Database
- World Births and Deaths – World Birth / Death Rates Visualization
- DataUNODC – Drug / Crime Statistics
- Gun Violence Archive – Gun Violence Statistics
- Incarceration in Real Numbers – Incarceration Visualization / Facts
- Expatistan – Cost of Living Calculator
- Climate Data or Climate Explorer – Climate Change Data
- ExtremeWeatherWatch – Extreme Weather Data / Tracking
- En-ROADS – Climate Solutions Simulator
- Global Volcanism Program – Volcano Information Database
- 8000ers – Mountain Visualization & Info
- iCivics – U.S. Law Learning Games
- WorldLicensePlates – World License Plate Index
- Symbols – Symbol Database
- Flag Guesser or Flag Match – Flag Quizzes
- FlagLog or Flaglookup – Flag Databases
- Flag Stories – Flag Design Breakdowns
- Hate on Display – Hate Symbol Database
▷ Chess
- 🌐 Awesome Chess, ImmortalChess101, Chess Domi or Chess Resources – Chess Resources
- 🌐 /m/Chess or /r/Chess – Chess Subreddits
- 🌐 /r/Chess Books – Recommended Chess Books
- ⭐ Scid vs. PC – Learn / Practice Chess
- ChessGames – Chess Database / Community
- ChessLab – Chess Lessons / Discord
- List Study – Chess Lessons
- Chessable – Chess Lessons
- TheChessWebsite – Learn / Practice Chess
- HerculesChess – Learn / Practice Chess
- Chess Tempo – Chess Practice
- Lucas Chess – Chess Practice
- Chess Coach – Chess Coaching App
- Chessercise – Chess Game / Move Analysis
- Game Report – Chess Game / Move Analysis
- Decode Chess – Chess Game / Move Analysis
- YottaChess – Chess Game / Move Analysis
- En Croissant – Chess Game / Move Analysis
- Chess Vision – Chess Game / Move Analysis
- OpeningTree – Download / Visualize Chess Games
- Chess Monitor – Track Chess Analytics
- 2700chess – Live Chess Player Ratings
- Bill Wall’s Chess Page or 365Chess – Chess History / Lessons
- ChessVariants – 1000+ Chess Variants + Guides
▷ Quote Indexes
▷ Virtual Tours
- 🌐 Virtual Museum Resources – Online Museums
- ⭐ CityHop, Travel Remotely, Walk with Feel, Outside Simulator, Japan Walkaround, CityWalks, Citywalki or Virtual Vacations – Travel Simulators
- Gez.la – Virtual Tours Map
- Wiki Spaces – Virtual Tours
- NaturalHistory – Natural History Museum Virtual Tour
- Digital Giza – Great Pyramid Virtual Tours
- Persepolis Reimagined – Explore Persepolis Recreation
- BelowTheSurface – Archeological Object DB of Amsterdam
- WW2 in 100 Objects – WW2 Museum Virtual Tour
- Spitfire Panorama – Spitfire Mark IX Cockpit Interactve Panorama
- Virtual Vist Tours – Ireland Virtual Tours
- Matterport – Explore Real Places Digitally
- Hashima Island – Hashima Island Virtual Tour
- Basilica Viewer – St. Peter’s Basilica Tour
- 360Cities, Zhijianshang or Airpano – 360 Images / Videos
- Smithsonian 3D – Smithsonian 3D Digitization Museum
- The Bayeux Tapestry – Bayeux Tapestry 3D Digitization
► Science / Math
▷ Physics
- 🌐 Physics Saviary or Falstad – Physics Tools
- ⭐ phys – Physics News / Articles
- ⭐ The Feynman Lectures – Physics Lectures
- ⭐ Bartosz Ciechanowski, Isaac Physics, PhysicsClassroom, HyperPhysics, MotionMountain or Splung – Physics Lessons / Learning
- ⭐ Physics Simulations, Mujoco, Physics Animations, oPhysics or MyPhysicsLab – Physics Simulations / Animations
- TIB AV-Portal – Science Videos
- PhysicsTravelGuide – Physics Explanations
- nLab Physics – Physics Encyclopedia
- Algodoo – Interactive Physics Tool
- QPaths – Learn Basic Quantum Terms
- quantum – Quantum Physics Learning App
- Physics Forums – Physics / Science Forum
- Physics Olympiads – ISODN Physics Discord Community
- Quantum Web Directory – Science / Tech / Math / Physics
- Virtual-Lab – Interactive Quantum Computing Lessons
- Interactive 4D Handbook – Interactive Fourth Dimension
- Ray Optics Simulation – Light Reflection / Refraction Simulator
- Compare Pendulum or DoublePendulum – Pendulum Simulators
- OpenFoam, PC Progress, Fluid Simulation WebGL, WebGL Fluid Experiment or Sim Flow – Fluid Dynamics Simulators
- SimScale or CFDTool – Fluid Dynamics & Heat Transfer
- Bouncy Balls or Balls Simulation – Ball Physics Simulator
- WebGL Water – Water Simulation
- LAMMPS – Molecular Dynamics (MD) Code
- avogadro, 2 or MolView – Molecular Viewers / Editors
- Simuwaerm – Heat Simulator
- Electromagnetic Radiation Spectrum Chart
▷ Space
- 🌐 Astronomy Resources – Astronomy Resources
- ⭐ /r/Space – Space Subreddit
- ⭐ Space Dashboard – Space Live Stream Dashboard
- ⭐ EarthData – Daily Satellite Replays
- ⭐ Visible Earth, GOES-16 Satellite Imagery or Sentinel Hub – Satellite Imagery
- ⭐ NASA – National Aeronautics and Space Administration Website / Images / Audio / Documents
- ⭐ JPL Photojournal or JPL Images – JPL Planetary Image Archives
- ⭐ March to the Moon, Apollo Image Atlas or ApolloArchive / Flickr – Moon Landing Images
- ⭐ In The Sky – Astronomy News / Interactive Guides
- ViewSpace – Space Videos and Digital Interactives
- ESA – European Space Agency Website
- Space.com – Space News
- Encyclopedia Astronautica – Space Encyclopedia
- NASA History or NASA Ebooks – NASA Books
- NSSDCA – NASA Space Science Mission Data
- Planet Globe – Virtual Globes
- ISS Sim – ISS Docking Simulator
- Transit Finder, ISS Tracker, Spot The Station or Where The ISS At? – ISS Transit Tracking
- Leolabs Space – Low Earth Orbit Simulator
- Orbiter – Spaceflight Simulator / GitHub
- Satellite Map, KeepTrackSpace, Find Starlink or Look4Sat – Satellite Orbit Maps / Trackers
- Sky Calendar – Astronomy Calendar
- Nights on Earth – Astronomical Event Calendar
- Space Weather News or SpaceWeather – Space Weather Updates / Videos
- Andegraf Rockets – Rocket Diagrams
- nextrocket.space or RocketLaunch – Rocket Launch Trackers
- Interactive Apollo Missions or FirstMenOnTheMoon – Apollo in Realtime
- SunCalc, ShadeMap or MoonCalc – Sun / Moon Position
- Earth and Moon Viewer – Earth / Moon Latitude and Longitude Viewer
- SDO Dashboard – Live Sun Feed
- CelesTrack – Earth Orbit Visualization
- TheSkyLive or Atlas of Space – Solar System Simulators / Information
- 1 Pixel moon, LightYear or OMG SPACE – Solar System Scale Model
- Marspedia – Mars Wiki
- ExoplanetExplore – Interactive Exoplanet Visualization
- ExoplanetArchive – Exoplanet Database
- Space Object Comparison – Compare Sizes Of Celestial Objects
- Astrogeology – Planetary Maps
- Map of the Universe, Scale of the Universe, AndroidCelestia or SpaceEngine / Old Versions – Interactive Universe Scales
- NASA’s Eyes or Celestia – 3D Space Visualizations / Solar System
- 100,000 Stars – Interactive 3D Star Visualization
- AndroidPlanisphere – Android Star Chart
- Aladin – Astronomical Image Viewer / Lite Version
- Siril – Astronomical Image Processor
- ESAsky – Public Astronomical Data
- Stellarium-Web or Stellarium – Virtual Stellariums
- WorldwideTelescope – Interactive Telescope Data / Home Page / GitHub
- ESA Hubble, SpaceTelescopeLive or HubbleSite – Hubble Telescope Images
- Webb Space Telescope, James Webb Space Telescope or ESAWebb – Webb Space Telescope Sites
- Webb Compare – Webb / Hubble Images
- APOD – Daily NASA Astronomy Images
- ESO Images, NASA2Explore or Astrobin – Astronomy Images
- /r/SpacePorn or /r/Astrophotography – Astrophotography Subreddits
- Meteor Showers – 3D Meteor Shower Visualization
- Live Meteors – Live Meteor Radio Echoes
- Clear Dark Sky – Star Gazing Weather Forecasts
- Dark Site Finder, DarkSkyMap or GoStarGazing – Star Gazing Site Locators
- TheCMB – 3D Cosmic Microwave Background Model
- ISODN Astronomy & Astrophysics – ISODN Astronomy & Astrophysics Discord Community
- ISODN Earth Science – ISODN Earth Science Discord Community
▷ Math
- 🌐 Awesome Math or Math Resources – Math Resources
- ⭐ Number Academy – Encyclopedia of Numbers
- ⭐ Wumbo – Math Reference Site
- ⭐ Open Source Society University / PT-BR – Math Roadmap / Discord
- ⭐ AoPS Alcumus or MathDash – Adaptive Problem Solving
- ⭐ BetterExplained – Math Guides / Courses
- ⭐ Manim, 2 – Generate Explanatory Math Videos / Videos / Difference Between Versions
- Wolfram MathWorld, Encyclopedia Of Math or nLab Math – Mathematics Encyclopedias
- Red Blob Games or Mathspad – Interactive Math Sites
- Mathcha, Corca or Math Editor – Online Math Editors
- SequenceDB – Sequence Machine
- OEIS – Encyclopedia of Integer Sequences
- Giac/Xcas – Algebra System
- Algebra Rules – Learn Algebra Rules
- CalculusMadeEasy – Learn Calculus
- CLP – Calculus Textbooks
- Mathematics Roadmap – Mathematics Book Recommendations
- Converter Pro, Rink, Frink, OneConverter or ConvertAll – Unit Converters / Calculators
- MathJax – JavaScript Math Display
- ISciDAVis – Scientific Data Plotter
- Approach0 – Math Formula Search
- MathOnline or Mathigon – Math / Courses
- Professor Leonard, 3Blue1Brown or MisterWootube – YouTube Math Lessons
- Mathispower4u, SchoolYourself, mathhelp, MathPortal, Math Planet or CoolMath – Math Lessons / Practice
- CoolMathGames – Math Games
- Cut The Knot – Math Equations / Problems
- IXL Learning – Math Practice / Quizzes
- Pauls Online Math Notes – Math Practice / Guides
- ParkMath or FreeMathHelp – Math Guides
- ISODN Math – ISODN Math Discord Community
- Fourier Transform – Interactive Fourier Transform Guide
- ProofWiki – Mathematical Proofs Wiki
- Terence Tao Research – Mathematical Research
- OpenLogicProject – Math Logic Teaching Materials
- Math is Fun – Math Tutorials / Puzzles / Games
- Brainstellar Puzzles – Puzzles From Quant Interviews
- Project Euler – Math / Programming Problems
- IMS – Introduction to Modern Statistics
- Seeing Theory or Stat Trek – Statistics & Probability Tutorials
▷ Engineering
- 🌐 The Engineering Toolbox or EngineersEdge – Engineering Resources
- 🌐 /r/EngineeringStudents Resources – Engineering Student Resources
- 🌐 Awesome Mecheng – Mechanical Engineering Resources
- 🌐 Awesome Electronics – Electronic Engineering Resources
- 🌐 Engineering Blogs – Engineering Blogs
- ⭐ /r/AskEngineers / Wiki, /r/engineering or /r/AutomotiveEngineering – Engineering Subreddits
- ⭐ NPTEL or Sabin – Engineering Courses
- Formulia – Engineering Formulas / Tools
- Sanfoundry – Engineering Questions & Answers
- CESDB – Engineering Software
- How a Car Works – Car Mechanics / Automotive Engineering Guides
- Robot Shop – Robotics Forum
- VisRo Robotics – Robotics Learning / Discord
- Humanoid Robots Wiki – Robotics Courses Index
- Diode – 3D Hardware Simulator
- Wokwi – Arduino / ESP32 Board Simulators
- HDLBits – Learn Circuit Design
- EasyEDA or LibrePCB – Electronic Circuit Design Tools
- Circuit Steps – Circuit Analysis Tool
- BatteryUniversity – Learn About Batteries
- Electronics Tutorials or Instrumentacion – Electronic Guides
- KiCad – Schematics Editor / PCB Creator / SPICE Integration
- /m/engineering – Engineering Multireddit
▷ Chemistry
- 🌐 Wolfram Alpha Chemistry – Chemistry Calculators / Tools
- ⭐ Lab Safety Guide / Intro
- ⭐ LibreTexts Chemistry – Chemistry Texts
- ⭐ Internet Chemistry – Chemistry Search Index
- Chemistry Basics – Basics of General, Organic, and Biological Chemistry
- ChemicalAid or Chemequations – Chemistry Calculators / Element Tables
- QuickChem – Chemistry Calculator
- PubChem, MOTM, NIST or EssentialChemicalIndustry – Chemistry Wikis
- ChemistrySteps or DocBrown – Chemistry Practice / Guides
- Cliffnotes Chemistry / Organic Chemistry I / Organic Chemistry II, Chem Wiki or chemguide – Study Guides
- ReactionFlash / iOS – Chemical Reaction Flashcards
- ChemistryTalk – Tutorials / Experiments / Elements / Reference Articles
- Sciencenotes – Periodic Tables / Chemistry Projects and Questions
- Organic Chemistry or Synarchive – Organic Reactions
- CommonOrganicChemistry – Common Reactions / Common Reagents
- name-reaction – List of Name Reactions
- ChemTube3D – Interactive 3D Chemistry Animations
- ChemSpider – Chemical Structures
- Merck Index – Online Merck Index
- Organic Chemistry Data – Organic Chemistry Data
- IGOC – Illustrated Glossary of Organic Chemistry
- Colorado Chemistry Simulations – Chemistry Animations
- Chemical Forums – Chemistry Forums
- ISODN Chemistry – ISODN Chemistry Discord Community
- Arkivoc – Journals
- WebQC Balance Calculator – Chemical Equation Balance Calculator
- Chemexper Chemical Directory – Chemical Directory
- OrgSyn – Chemistry Prep Guides
▷ Biology
- ⭐ Wikispecies or The Catalogue of Life – Species Databases
- ⭐ Animalia or A-Z Animal – Animal Encyclopedia
- ⭐ OneZoom – Tree of Life Explorer
- ⭐ Lost and Found Nature – Rediscovered Animal / Plant Database
- ⭐ Open Source Society University – Bioinformatics Roadmap / Discord
- BiologyOnline – Biology Articles
- Biodiversity Heritage Library – Biodiversity Research
- Alien – Artificial Life Simulator / GitHub / Video
- Metazooa – Species Connection Game
- RecentlyExtinctSpecies – Recently Extinct Species Database
- UniProt – Protein Database
- iNaturalist – Organism Identification
- Ocearch – Track Marine Life
- The Deep Sea – Interactive Deep Sea Life Guide
- Pattern Radio – Listen to Whale Songs
- eBird, Audubon or AllAboutBirds – Bird Species Databases / IDs
- EuroBirdPortal – European Bird Distribution Map
- BirdSounds – Thousands of Bird Sounds Visualized
- Merlin or whoBIRD – Bird Picture / Sound Identification
- Featherbase – Bird Feather Database
- BugGuide – Insect Identification Community
- AntWeb – Ant Species Database
- Macroinvertebrates – Freshwater Macroinvertebrates Atlas
- Life Under the Ice – View Antarctic Microbes
- WhyDoCatsAndDogs…? – Pet Q&A Site
- Backyard Chickens – Chicken Raising Forum
- DinosaurPictures – Dinosaur Info / Images
- Pteros – Pterosaur Database
- WFO – Plant Database
- The Ferns – Tropical Plant Database
- ISODN Biology – ISODN Biology Discord Community
▷ Med School
- 🌐 /r/MedicalSchool Wiki – Med School Resources
- ⭐ Khan Academy – Physiology / Pathology Overviews
- ⭐ Afratafreeh – Medical Video Courses and Books
- MDCalc, MSD Manuals or Epocrates – Medical Reference Sites / Tools
- Geeky Medics, UC San Diego CG or Easy Auscultation – Clinical Guides
- Glass AI – Medical Diagnoses’ Training AI
- Get Body Smart or University of Michigan Anatomy – Anatomy Guides
- Zygote Body, AnatomyLearning or Biodigital – 3D Human Anatomical Models
- Inner Body – Anatomy Atlas (2D&3D)
- NIH Print – Biomedical Science 3D Models
- Sectional Anatomy – Cross Sectional Educational MRI / CT Scans
- University of Minnesota Histology or University of Leeds Histology – Histology Guides
- Tulane University Pharmacology – Pharmacology Info & Quizzes
- Antibiotics Summary – Antibiotics Summary Image
- ECGPedia, Healio ECG Review, ECG Library or Litfl – ECG Information
- The ECG Course – ECG Video Course
- ECG Wave-Maven: Self-Assessment Program – ECG Practice
- Hyper Heart – Massey University Heart Animation
- Emergency Medicine Cases – EM Case Index
- EMCrit – Emergency Medicine Information
- EMRap – Emergency Medicine Videos
- Calgary Guide – Disease Pathophysiology / Manifestation Flow-Charts
- Radiopaedia, Radiology Assistant or Radiology Education – Radiology Resources
- MalaCards – Human Disease Database
- Epidemic Calculator – COVID Data
- Pathology Outlines – Pathology Info
- University of Utah Pathology – Pathology Guide
- The Iowa Virtual Slidebox – Pathology Atlas Software
- Nextstrain – Pathogen Evolution Tracking
- Passmedicine – UCAT Practice Questions
- UCAT Score – UCAT Score Converter
- /r/medicalschoolanki – Community for Medical Anki Cards
- CRAM – Medical Flashcards
▷ Periodic Tables
- ⭐ Ptable – Interactive Table
- ⭐ Images-of-elements – Element Images
- ⭐ periodic-table.org or Material Properties – Material / Element Learning Resources
- Graph Overflow or 3D Periodic Table – 3D Visualizations of Atoms
- Atomic – Periodic Table Mobile App
- The Periodic Table Of Elements – Interactive Table
- periodic-table.io – Interactive Table
- Periodic Table App – Interactive Table
- WebElements – Interactive Table
► Language Learning
▷ Multi-Language
- 🌐 Language Links, /int/ Guide or /r/LanguageLearning Resources – Language Learning Resources
- 🌐 Speechling – Language Learning Tools
- 🌐 LexiLogos – Multi-Language Dictionary Index
- ⭐ Language Transfer – Language Learning Lectures
- ⭐ Language Reactor, LLPlayer, Trancy or Easysubs – Learn Languages via Videos
- ⭐ Readlang – Learn a Language via Web Browsing
- Duolingo / Tips, Memrise, LingoDeer or Busuu – Language Learning Lessons
- Language Learners – Language Learning Forum / Community
- WordReference, Glosbe or Reverso – Translation Dictionary
- Yomitan – Popup Dictionary / Discord
- ReverseDictionary or OneLook Reverse – Search for Words Using Their Meanings
- Comprehensible Input Wiki – Learn Languages via Comprehensible Input
- HelloTalk – Learn Languages via AI Conversation
- Languagelearning.site – Language Learning Torrents
- Refold – Language Learning Roadmap
- Language Drops – Language Learning App / Premium
- 10,000 Sentences – Language Learning App
- Yojik or Pimsleur – Language Learning Courses
- DLIFLC – Language Learning Quizzes
- Ba Ba Dum – Language Learning Game
- LanguageGuide – Visual Language Learning
- clozemaster – Context-Based Language Learning
- Sounter, LingoClip or LyricFluent – Learn Languages via Music
- MORT or Textractor – Learn Languages via Games
- Language Roadmap – Foreign Language Media Difficulty Guide
- Hey! Lingo or LearnWithOliver – Language Learning Flashcards
- MyLanguages, VocabTest, My Little Word Land or 50Languages – Grammar / Vocabulary Language Learning
- Vocatra or QuizFlow – Vocabulary Trainers
- Verbix – Verb Conjugator
- ListLang – Most Used Words in Any Language
- Alphabetpedia – Multiple Language Alphabets
- wehewehe – Hawaiian Dictionary
▷ Language Exchange
- 🌐 The Language Exchange Network, 2 – Language Exchange Communities / Discord
- InterPals
- Episoden
- Tandem
- Conversation Exchange
- RhinoSpike
- LangX
- Polyglot
- ISODN Linguistics – ISODN Linguistics Discord Community
▷ English
- 🌐 Many Things – ESL Resources
- 🌐 ESOL – English Learning Resources
- youglish or YouDict – YouTube Word Pronunciations
- Forvo or HowJSay – Pronunciation Dictionary
- The Internet TESL Journal – Resources for EFL and ESL Teachers
- EFSET – English Proficiency Test
- Spellcheck – English Spelling Game
- Learn English Online, ESLFast, AntiMoon, Oxford Online or Cambridge Online – English Lessons
- EnglishCentral, EngVid or Voscreen – English Video Lessons
- Frenglish or English E-Reader – English Learning Books
- elllo or Listening Lab – English Listening Lessons / Practice
- TalkEnglish or Stimuler IELTS Speaking Buddy – Improve Spoken English
- WriteAndImprove – Improve English Writing
- Elsaspeak – Practice English Conversations
- yell0wsuit or OxfordLearnersDictionaries – Word Learning Site
- Podcasts in English – English Learning Podcasts
- Langeek or Ozdic – Grammar / Vocabulary Language Learning
- EnglishAccentMap – English Accent Videos / Map
- EnglishBanana – English Learning Worksheets
- Free4Talk – English Learning Communities
▷ Japanese
- 🌐 yame dame, GaijinRyman, Nihongo, Japanese Resources or AnimeCards – Learning Resources
- 🌐 Japanese Pitch Accent Resources – Japanese Accent Resources
- ⭐ Animelon, JapaneseWithAnime or Immersion Kit – Learn Japanese via Anime / Manga
- Nihongo con Teppei – Japanese Beginners Podcast
- JapaneseTab – Japanese Learning Extension
- Minato – Japanese Courses
- Memento – Japanese Learning Video Player
- Supernative or LearnNatively – Learn Japanese via Media
- jidoujisho or Manabi – Learn Japanese via Books
- Learn Japanese Grammar or BunPro – Learn Japanese Grammar
- OJAD – Japanese Accent Dictionary
- DelvinLanguage – Fill in Missing Japanese Words
- Jlpt N3 or JapaneseTest4You – Jlpt Exam Questions / Grammar
- GetKanda, Nihonoari or RealKana – Learn Kana
▷ Korean
- ⭐ Learn Korean – Korean Learning Discord
- Read Korean Letters – Learn Korean Characters
- KR Dict – Korean Learning Dictionary
- HowToStudyKorean – Korean Lessons / Practice
- iksi – Korean Classes
- TalkToMeInKorean – Korean Learning Courses
- Sogang or 90 Day Korean – Korean Learning Lessons
- Mirinae – Korean Word Breakdown
- National Institute of Korean Language – Korean Dictionaries / Expression Practice
- Hangul Practice – Hangul Recognition Test
- UltimateKorean – Korean Grammar / Vocab Lessons
- KoreanKeyboardLearner – Korean Typing Practice
- Korean Trainer – Korean Numbers & Date Practice
- Hangul – Korean Typing Practice
▷ Chinese
- 🌐 YellowBridge or DigMandarin – Chinese Learning Tools
- 🌐 Cantonese sheik or SinoSplice – Chinese Learning Resources
- ⭐ /r/ChineseLanguage – Chinese Learning Community / Discord
- ⭐ Zhongwen – Learn via Classic Chinese Literature
- Train Chinese, ChineseSkill or HelloChinese – Chinese Learning App
- KongLongMandarin, DU Chinese or Dong Chinese – Chinese Lessons
- ArchChinese or Hanzi Grids – Chinese Writing Lessons
- Stroke Order – Learn Chinese Stroke Orders
- HackingChinese – Chinese Learning Articles
- Cantonese.ca, CantoScrolls, Laoshi or TofuLearn – Chinese Vocabulary
- MDBG or Pleco – Chinese Dictionaries
- Maorma – Chinese Tone Practice
- The Chairman’s Bao – Chinese Reading Practice / News Articles
- Pleco – Chinese Flashcards / Dictionary
- Chinese Flashcards – Chinese Flashcards
- MandoBot – Mandarin Translation / Segementation
▷ European
- ⭐ StudySpanish or LibreLingo – Learn Spanish
- SpanishDict – Spanish Translation Dictionary
- SpanishChecker – Spanish Grammar Check
- DreamingSpanish – Spanish Learning Videos
- The French Tutorial – French Learning Tutorials
- LCSpeakFrench – Live French Lessons
- Uusi Kielemme – Finnish Learning
▷ German
- 🌐 German Resources – German Language Resources
- ⭐ German Discord – German Learning Community
- ⭐ DW German Course – German Learning Course
- ⭐ VHS Lernportal – German Learning Course / Mobile
- Seedlang – German Learning App
- Linguee / 2 or Dict.cc – German Translation Dictionaries
- VerbForm – Create German Verb Anki Flashcards
▷ South Asian
- 🌐 Urdu Resources or UrduNotes – Urdu Learning Resources
- 🌐 Mga Nagmamarunong’s Masterlist – Tagalog Learning Resources
- 🌐 Learn Sanskrit or Sanskrit Studio – Sanskrit Lessons and Tools
- South Asian Languages – South Asian Language Learning
- Urdupod101 – Urdu Grammar Overview / Video
- Rekhta Dictionary – Urdu Dictionary
- UBC Sanskrit Learning Tools – UBC Sanskrit Lessons
- Sanskrit Subreddit / Resources – Sanskrit Resources / Discussion
- Ambuda – Sanskrit Dictionaries / Texts
▷ Other Languages
- TeachMeHebrew – Learn Hebrew
- ASL Dictionary, BSL Dictionary, SignSpaces or HandSpeak – Learn American Sign Language
- SignLearner – Learn Sign Language while Browsing Internet
- Signs – Sign Language Learning AI
- Learn BSL in SignWriting
- LingYourLanguage or Language Squad – Language Identification Test
- LocalLingual or DialectArchive – Listen to Accents
- Interactive IPA Chart – Learn Phonetic Alphabet Symbols
- IPA Reader – International Phonetic Alphabet Reader
- Asian Script Differentiation Guide
- Omniglot – Writing System & Language Encyclopedia
- Plover – Stenography Engine / GitHub / Discord
► Developer Learning
- 🌐 Awesome Certificates – Dev Course Indexes
- 🌐 Awesome YouTubers – YouTube Dev Channels Indexes
- 🌐 ProgrammingLearningResources, /r/LearnProgramming Wiki, Programming Learning Index or A-to-Z-Resources-for-Students – Programming Learning Resources
- 🌐 Python Discord – Python Learning Resources
- 🌐 Path to Senior Engineer or Professional Programming – Software Engineer Resources
- ⭐ freeCodeCamp – Programming / Courses / Interactive
- ⭐ Git Cheatsheet or Git Commands – Git Command Lists
- ⭐ OpenVim or Vim Hero – Interactive Vim Tutorials
- ⭐ StarSQL or Learn SQL – SQL Lessons
- First Timers Only – Contribution Guide for Beginners
- Beej’s Guide to Git or Git Tips – Git Guides / Tips
- Oh My Git! or Oh Shit, Git!?! – Git Learning Game
- Git Tutorial – Interactive Git Tutorial
- Learn Git Branching – Interactive Git Branching Guide
- Git Time – Git Version Control System Learning Game
- DevToolTips – Developer Tips
- Roadmap – Developer Roadmaps / GitHub
- Checki0 – Code Learning Games
- Scrimba – Interactive Programming Courses
- CloudSkillsBoost – Programming Courses
- EggHead – Programming Courses
- TechSchool – Programming Courses / Discord
- USACO Guide – Competitive Programming Lessons
- Beej’s Guides or LearnByExample – Programming Guides
- CodinGame – Games to Practice Coding / Programming
- Advent of Code – Programming Puzzles
- Project Based Learning – Collection of Project-Based Tutorials
- Interview University – Software Engineer Study Guides
- System Design 101 or system-design-primer – System Design Guides
- CLIG – CLI Design Guide / Discord
- LearnToCloud – Cloud Computing Guide
- Swift Playgrounds – Learn Swift UI / Samples
- rTorr – Vim Editor Cheat Sheets
- Vim University – Vim Tips
- VimTip – Vim Editor Tips
- Vim Adventures – Vim Learning Game
- Vim Golf – Vim Challenges
- High Assurance Rust – Software Development Guide
- LearningSEO.io or SEO Cheat Sheet – SEO Learning
- SQL PD, SQL Noir, Lost at SQL or SQL Easy – SQL Learning Games
- PostgreSQL Tutorial – PostgreSQL Tutorial
- MySQL Tutorial – MySQL Tutorial
- LearnOpenGL – Learn OpenGL
- Devops Exercises – DevOps Exercises
- 90DaysOfDevOps – Learn DevOps
- Hasura – GraphQL Courses
- systemd-by-example – systemd Learning
- The Linux Kernel – Linux Kernel Development Guides / Archives
- Workbench – Learn / Experiment with Gnome / GitHub
- Approaching (Almost) Any Machine Learning Problem – Machine Learning Problem-Solving Book
- Deep ML – Solve Machine Learning Problems
- AI-For-Beginners, Beginner Guides or HF Learn – Machine Learning Guides
- ML Course Notes – Machine Learning Course Notes
- 100-Days-Of-ML-Code, DeepLearningWizard, DeepCourse, UFLDL, IAILab, Handson ML3, DeepLearning.ai or Practical Deep Learning – Machine / Deep Learning Courses
- minitorch – Machine Learning Engineering Course Code
- ML YouTube Courses or Deep Learning Drizzle – Machine Learning Courses on YouTube
▷ Programming Languages
- 30 Days Of Python or Hitchhiker’s Guide to Python – Python Guides
- A Byte of Python, Hypermodern Python, Learn Python, Learn-Python or Magical Universe – Learn Python
- FutureCoder, CS50, python-mastery or A Practical Introduction to Python – Python Courses
- Tea Press – Python Learning Book
- Learn C – C Tutorial
- C++ Core Guidelines – C++ Best Practices Guidelines / GitHub
- Learn C++ – C++ Lessons / Tutorials
- StudyPlan – C++ Lessons / Tutorials
- modern-cpp-tricks – C++ Tips
- Makefile Tutorial – Makefile Tutorial
- AmigosCode – Java / Kotlin Tutorials
- learncs.online – Learn Java / Kotlin
- Java Design Patterns – Java Guide
- Learn Next.js – Next.js Learning Resources
- LearnGo, Tour Go or play-with-go – Learn Go Programming
- Rust Learning – Rust Learning Resources
- Poignant or Try Ruby – Learn Ruby
- Learn Perl – Learn Perl
▷ Web Development
- 🌐 MDN or Web Dev Resources – Web Dev Learning Resources
- ⭐ Odin Project, 2 – Programming / Courses / Interactive / Discord
- ⭐ FullStackOpen – Full Stack Course
- ⭐ LandChad, 32bit or learn.sadgrl.online – Site Development Guides
- ⭐ Learn to Code HTML & CSS – HTML/CSS Course
- ⭐ PHP: The Right Way, Learn PHP or PHP Tutorial – Learn PHP
- ⭐ JavaScript.info, Patterns.dev or 30 Days Of JavaScript – JavaScript Learning Sites
- Web Dev for Beginners – Web Dev Course
- Awesome Network Analysis – Network Analysis Learning
- Aquent Gymnasium or CodeAnalogies – Web Dev Tutorials
- Dash – Web Dev Courses
- Web Skills, Codeguage / Discord, web.dev or Encodedna – Web Dev Guides
- Codevolution – Web Dev Video Lessons
- Local-First Web – Local-First Web Development Guide
- DOM Events – Learn about DOM Events
- WebRTCForTheCurious – WebRTC Guide / GitHub
- backendlore or Design Pattern for Humans – Backend Coding Guides
- backend-challenges – Backend Challenges for Practice
- Backend Cheats – Backend Cheatsheet / Guide
- Full Stack Solana Development Guide – Examples
- STPG – Startpage Creation Guides / Discord
- Web Design in 4 Minutes or Strml – Interactive Web Design Tutorial
- WebGL and GLSL Workshop – Interactive WebGL / GLSL Tutorial
- HEAD – HTML head Element Guide
- css-animation – CSS Animation Tutorial
- 100DayCSS, CSS Challenges or PlayCSS – CSS Challenges
- Codepip, Grid Garden, CSS Battle, CSS Speedrun, CodingFantasy or CSS Diner – CSS Learning Games
- Guess CSS – CSS Guessing Game
- Flexbox Froggy, Flexbox Zombies, FlexboxDefense or KnightsoftheFlexboxTable – CSS Flexbox Learning Games
- DefensiveCSS – CSS Tips
- LearnCSSGrid or GridByExample – CSS Grid Guides
- ReactStudyKit – React Study Tools / Flashcards
- You Don’t Know JS or EloquentJavaScript – JavaScript Learning Books
- JavaScript Questions or JavaScriptQuiz – JavaScript Questions for Practice
- 33 JS Concepts – Useful JavaScript Concepts
- You-Dont-Need-jQuery – JavaScript Query Style Events Guide
- Untrusted – JavaScript Learning Game
- HTML DOM – Learn DOM Manipulation
- HTMLDog – HTML/CSS and JavaScript Tutorials
- Pixactly – Test Pixel Dimension Orientation
▷ Computer Science
- 🌐 CompSciLib – Computer Science Tools
- ⭐ TeachYourselfComputerScience – Computer Science Book Recommendations
- ⭐ Open Source Society University / PT-BR / CN – Computer Science Roadmap / Discord
- ⭐ NandGame – Computer Building Puzzle
- ⭐ CraftingInterpreters – Scripting Language Implementation Book / GitHub
- CS1000 – Computer Science / Software Engineering
- Tech Dev Guide – Computer Science Google Courses
- Big-O Cheatsheet – Computer Science Complexities Cheatsheet
- CSDIY, awesome-low-level-design, awesome-system-design-resources or LearnAIFromScratch – Computer Science Learning Guides
- ProfessorMesser – IT Courses
- Code.org – Computer Science Courses
- cs-video-courses – Computer Science Courses
- Modern Computer Science Curriculum – Computer Science Courses
- CS50 – Harvard Computer Science Course
- CollegeComendium – Computer Science Courses
- Runestone Interactive – Interactive Guides
- Computerphile or CSDojo – Computer Science YouTube Channels
- ApressOpen – Computer Science Books
- Papers We Love – Computer Science Research Papers
- CS Academy – Interactive Computer Science Lessons
- From Nand To Tetris – Computer Building Lesson
- Copetti – In-depth Console Architecture Analysis / GitHub
- Web Browser Engineering – Learn about Browser Engineering
- OSDev Wiki – Operating System Dev Wiki
- Wi is Fi – Wi-Fi Educational Guide
- CPU Land – What Happens when you run Programs
- Computer Science Lecture Links
- Eylenburg – Hardware / Software Comparisons + History
▷ Data Science
- 🌐 Awesome DataScience – Data Science Resources
- 🌐 Data Engineer Handbook – Data Engineer Resources
- ⭐ Open Source Society University – Data Science Roadmap / Discord
- Mage – Data Science Pipelines
- Deepnote – Data Science Notebook
- Data Science Resources – Data Science Learning Resources
- Visualization.info – Learn About Data Visualization
- 365Datascience – Data Science Courses
- Advanced R – R Guide / Solutions
- R Packages – R Packages Guide
- R for Data Science – R Data Science Guide
- Zero to Nix – Nix Learning Guide
- ggplot2: Elegant Graphics for Data Analysis – ggplot2 Guide
- Data Science Ipython Notebooks, Scipy Lectures or Virgilio / GitHub – Learn DataScience
- Data Engineering Zoomcamp – Data Engineering Course
- Data Engineering Practice Problems – Data Engineering Practice
- Learn to Make Netflix Clone
- Zasper – Data Science IDE
▷ Data Structures
- ⭐ Leetcode – Coding Practice
- ⭐ Leetcode Tools – Solutions, 2 / Company Questions, 2, 3 / Animations / Anki Cards / Videos / Resources
- ⭐ NeetCode – Coding Interview Practice
- algonds – Coding Practice
- Codility – Coding Practice
- ProjectLearn – Coding Practice
- LintCode or CodeWars – Coding Practice
- CyberType – Increase Coding Speed
- Coding Questions or Skilled.dev – Coding Interview Questions
- BuildBox, DevPost, HackTheEarth, EMKC, AtCoder or Toph.co – Hackathon / Challenge Communities
- Rosetta Code, CodeAbbey, Kattis or Coding Problems – Coding Problems / Solutions
- Exercism, HackerRank or CS Circles – Programming Lessons
- Hello Algo – Data Structures and Algorithms Course
- Algorithms-Cheatsheet-Resources – Code Algorithm Cheat Sheets
- algorithms – Code Algorithms & Data Structures Tutorials
- JavaScript Algorithms – Algorithms and Data Structures in JavaScript
- VisuAlgo – Data Structures & Algorithm Animations
- Algorithm Visualizer or Sorting Algorithms Visuallizer / GitHub – Visualize Code Algorithms
- CSES Problemset – Collection of Algorithmic Programming Problems
- Memery Spy – Learn how Bytes Represent Variables
▷ UI / UX
- design.tips or Utopia – Design Tips
- HackDesign or Sky Design – UI / Webdesign Courses
- Learn UI Design – UI Design Course
- 50 UI Tips – UI Design Book
- Can’t Unsee – UI Design Test
- UXTools or UXMovement – Learn UX Design
- SitePoint – UX Design Courses & Books
- delightful humane design – Humane Design Resources
- Laws of UX – Maxims / Principles for UI Designers
- Deceptive Patterns – Deceptive User Experience Examples
- UI Coach – UI Design Challenge Generator
- HTML Dog or Front Tips – Frontend Tutorials & Examples
- FrontEndMentor, Phuoc or Frontend Challenges – Frontend Design Challenges
- Frontend Learning Kit – Frontend Learning Index
- Frontend Bootcamp – Frontend Workshop
▷ Cybersecurity
- 🌐 Free Cyber Resources, BlueTeam Tools or Applied Cybersecurity – Cybersecurity Learning Resources
- 🌐 CTF Sites, echoCTF.RED, CTF101, picoCTF, CTF Beginners Guide, CTFtime or CTFLearn – CTF Resources / Guides
- ⭐ HackTricks – Practical Penetration Testing & Security Auditing Tips
- ⭐ OWASP Cheatsheet – Application Security Guide
- Hackers101, SmashTheStack, WebHacking or DefendTheWeb – Cybersecurity Challenges
- Skills for All or 90DaysOfCyberSecurity – Cybersecurity Courses
- Sectube – IT Security Event Recordings
- TryHackMe, Hack The Box or OpenSecurityTraining2 – Cybersecurity Lessons
- Addielamarr, Cyber Talent Kids or Teach Yourself Info Sec – Learn About Cybersecurity
- pwn.college – Cybersecurity Practice
- OverTheWire – Cybersecurity Learning Game
- Hacksplaining – Developer Security Lessons
- MicroCorruption – Learn Reverse Engineering / Cybersecurity
- x86re or Reverse-Engineering – Reverse Engineering Guides
- CrackMyApp or crackmes / Discord – Reverse Engineering Challenges
- John Hammond – Cybersecurity YouTube Tutorials / Discord
- Pentesting Bible or Juice Shop – Learn Pentesting
- How DNS Works – Learn DNS
- How DNSSEC Works – Learn DNSSEC
- sha256_project, CryptoPals or cryptohack – Cryptography Learning
- How HTTPS Works – Learn HTTPS
- The SHA-256 Project – Learn to Develop SHA-256
▷ Game Development
- 🌐 Awesome-Gamedev, Learn Gamedev, MagicTools, Newgrounds Wiki: Game Dev Resources or The VG Resource – Learning Resources
- ⭐ develop.games – Game Dev Guides
- ⭐ Brackeys – Game Dev Tutorials
- ⭐ /r/gamedev – Reddit Community
- Amit’s Game Programming – Game Programming Guide
- PICO-8 – Basic Game Dev Concepts / Web Version
- From Zero To Hero – 2D Game Dev Book
- Web Game Dev – Game Dev Guides / Discord
- SebastianLague – Game Dev Tutorials
- Trig for Games – Trigonometry Lessons for Games
- Game Math – Mathematics Lessons for Game Devs
- Graphics Workshop – Learn Computer Graphics
- QB64SourceCode – QB64 Game Programming Tutorials
- 8bitWorkshop – Retro Game Programming Tutorials
► Educational Tools
- 🌐 nanoHUB – Nanotechnology Tools
- 🌐 5th STAAR Resource Curation – Grade School Tools
- ⭐ OpenBoard, DGM, NotebookCast, WebWhiteboard, Microsoft Whiteboard, WBO, OurBoard, Whiteboard.fi or Whiteboard Fox – Whiteboards
- FreeForStudent – Free for Student Deals
- ImageJ or Fiji – Scientific Image Analyzers
- Altium – Schematics Visualizer
- Wolfram Cloud – Computational Intelligence
- GradesFixer – Essay Samples
- Tempumail or etempmail – EDU Email Addresses
- Edu VPN – Institute Access VPN
- BachelorStudies – Bachelor Degree Search
- Talem – Extracurricular Search
- Niche, TheUniGuide, Alumnius or Top Universities – University / School Comparisons
- RateMyDorm or :) – College Dorm Reviews
- RateMyProfessor – Professor Ratings
- Wordwall – Lesson Creator
- The Chomsky Index – Noam Chomsky Content Index Tool
- Internet-In-A-Box – Create Free Offline Learning Hotspots / GitHub
▷ Study / Research
- 🌐 Awesome Research, Scolary, KausalFlow, Foam, Zotero, ResearchRabbit or Scrible – Research Tools
- 🌐 Digital SAT Resources – SAT Resources
- ⭐ Wolfram Alpha – Searchable Knowledge Base / Mobile
- ⭐ StudyLion – Study Tracker / Productivity Discord Bot / GitHub
- ⭐ StudyKit StuDoc / Downloader / 2, Gizmo, Knowt, Quizlet, Shmoop or SparkNotes – Quizzes / Study Material / Show Hidden
- ⭐ Anki / Discord / Subreddit / GitHub, StudyLib, RemNote, Flippity, Flashcard Machine, MemoAnki, revisiondojo, Flashka or NoteKnight – Flashcard Tools
- ⭐ Anki Tools – Add-ons / Decks / Resources
- ⭐ Coursicle – Class Schedule Tracker / Android
- ⭐ OpenSyllabus – Syllabus Search / Info
- ⭐ Refseek, Explorer or Merlot – Academic Search Engines
- SciSpace (No Sign-Up), Scinito or Elicit / GitHub – Research Paper Chatbots
- Co-STORM – Generate Wiki-Style Articles for Anything
- mybib, citemaker, formatically, zbib, CitationMachine, CiteFast or Cite This For Me – Generate Citations / Chrome
- Publish or Perish – Citation Analyzer
- Inciteful – Find Connected Literature via Citations
- PLText, PlagiarismDetector or Duplichecker – Plagiarism Checkers
- cb2bib – Reference Extractors / Managers
- MassiveMark – Convert LLM Chats to DOCX / Discord
- GROBID – Extract / Organize Scientific Document Info
- ExpertFile or ExpertiseFinder – Industry / Academic Expert Search
- Catma – Research Markup & Analysis Tool
- OpenRefine – Data Cleaning
- Taguette – Data Analysis Document Tagging
- Lurnby – Research Highlighting Tool / GitHub
- General Index – Article Metadata Mining Project
- Papertag – Attach Digital Content to Paper
- Graded – Grades Tracker / Android / GitHub
- GradesCalculator – Calculate CGPA & GPA
- CalculateCGPA – Calculate GPA
- LearnedEasy – Create Summaries / Quizzes from Books
- SearchifyX – Search Flashcards
- ForgetMeNot – Flashcard Mobile App
- Get Unstuck or Brainly / Limit Bypass – Homework Help Bots / Communities
- Toppr, FreeOnlineTest, Alloprof or AE Old (Discord) – Test Practice & Homework Help
- DoubtNut – Exam / Solutions / Help
- MammothMemory – Visual Memory-Based Solutions
- StudyStream or StudyTogether – Online Study Groups
- Space Finder – UK Study Space Search
- Papers.Xtreme – Test Revision Notes & Answers
- OnePrep or The SAT: Practice Tests – SAT Practice Exams / Questions
- SATArchive – Previous SAT Test Archive
- SAT Reading – Suggested SAT Reading
- SAT_Files_discussion – SAT Exam Discussion
- Examveda, SaveMyExams or Aglasem – Exam Practice
- MajorTests – Practice Tests
- CrackAP – Practice AP Exams
- AllFreeDumps – Exam Dumps
- IndiaBIX – Aptitude Tests
- IBResources – International Baccalaureate Resources
- /r/ApStudents Resources – Former AP Exams
- /r/APStudents Course Survey – AP Exam Comparison Spreadsheet
- /r/CATpreparation – CAT Test Prep / Discord
- Revisely – GCSE Exam Help
- CatchaScience, IGCSEResources, r/IGCSE or ZNotes – IGCSE Study Notes / Resources
- IGCSE Papers or Physics & Maths Tutor – Download Past GCSE / IGCSE Papers
- IELTS69 – Cambridge Practice Tests
- CaieFinder – Previous Cambridge Test Answers
- anthropology – UPSC Telegram Channel
- GaryChamberlainLectureNotes – Econometrics Lecture Notes
- ITExams – IT Exam Collection
- Cheatography – Educational Cheat Sheets
- LitSolutions – Textbook Solutions
- Science Career General – PhD / STEM Career Study Guides
- HamExam, AA9PW or HamStudy – Ham Radio Practice Exams
▷ JEE / NEET
- 🌐 /r/JEENEETards Index – Guides / Study Material
- ⭐ PirateHive – Guides / Study Material
- ⭐ ExamSide – Practice / Study Material
- ⭐ JEE Hub – JEE / NEET PYQs
- JEE Books – JEE Books Archive
- Genetry or Lec.Branch – JEE Lectures
- YouTube Lengths, Fastlane Lengths or Normal Lane Lengths – Lecture Lengths / Data
- MarksAPP – Guides / Study Material / Telegram
- Adv Study Material – Guides / Study Material
- DoubtNut – Solutions / Help / Ad Bypass
▷ Calculators
- ⭐ Wolfram|Alpha – Calculators
- ⭐ Omni Calculator – Calculators
- ⭐ OpenCalc, yetCalc, microMathematics, Calculator++, Calc 991 or Graph89 – Android Calculators
- ⭐ Microsoft Math Solver, SpeedCrunch or MathPapa – Advanced Calculator
- ⭐ SageCalc, ti84calc.online, CEmu, ti-84calculatoronline, TI 84 Calculator, TI-84 Plus / Shell, TI-84 Online or ti84calc – TI-84 Calculators
- ⭐ GeoGebra, Grapes or Desmos – Graphing Calculators
- ⭐ Cymath, PhotoMath, Mathway, MathDF, Math Solver, Tiger Algebra or Symbolab – Math Problem Solvers
- Omnimaga – Calculator Community / Forums
- GoodCalculators – Calculators
- GigaCalculator – Calculators
- numbr.dev – Calculators
- Aqua Calc – Calculators
- PlanetCalc – Calculators
- TI-30 Calculator Online or ti30calc – TI-30XS Calculator
- TI-108 Calculator Online – TI-108 Calculator
- ThomasOkken – HP-42S Calculator
- FreeFEM – Partial Differential Equations Solver
- MatrixCalc or Reshish – Matrix Calculators
- Qalculate – Desktop Calculator
- QwikTape – Note Style Calculator
- Integral Calculator or Derivative Calculator – Integral / Derivative Calculators
- fxSolver, SpeedCrunch, Kalker or Numbat – Scientific Calculators
- TicCalc – TI Graphing Calculator Files
- arTIfiCE – TI CE Calculator Jailbreak
- TI-Basic Developer – TI-Basic Info Repository
▷ Dictionaries / Thesaurus
- 🌐 Dictionary Index – List of Online Dictionaries
- ⭐ OneLook – Multi Dictionary / Thesaurus Search
- ⭐ Merriam-Webster – Dictionary / Thesaurus
- ⭐ GoldenDict / 2 – Dictionary / Files
- ⭐ TheSage – Dictionary / Thesaurus
- ⭐ NGrams or Netspeak – Word Usage Trackers
- ⭐ The Piracy Glossary – Piracy Dictionary
- ⭐ UrbanDictionary / Frontends or Slangit – Slang Word / Phrase Dictionaries
- NinjaWords – Dictionary
- Wordnik – Dictionary
- Oxford English Dictionary – Dictionary / Bypass
- Cambridge Dictionary – Dictionary
- LDOCE – Dictionary
- Wiktionary – Dictionary
- Lexicool – Dictionary
- Vocabulary – Dictionary
- TheFreeDictionary – Dictionary
- Dictionary – Dictionary
- Word Hippo – Thesaurus
- Thesaurus.com – Thesaurus
- PowerThesaurus – Thesaurus
- VisualThesaurus – Thesaurus
- Historical Thesaurus of English – Historical Thesaurus
- Webopedia or TechTerms – Tech Dictionary
- Phrases.org – Phrase Dictionary
- Time Traveler – Find Words First Printed Usage
- EtymOnline or WorldwideWords – Etymologies
- StarlingDB – Advanced Linguistics Dictionary
- Words to Use – Find Alternative Words
- Phrontistery – Obscure Word Dictionary
- LexiLogos – Multi Language Dictionary Index
- Reverse Dictionary – Lookup Words via Phrases
- WikiDiff – Difference Between Any Words
- Websters 1913 – 1913 Websters Dictionary
- Unionpedia, Lexipedia, VisuWords or WordWeb – Word Connections / Visualizers
- DoesNotTranslate or Eunoia – Words with No Translation
- Tip of my Tongue – Find Words you Can’t Remember
- Abbreviations.com – Abbreviations
- Affixes.org – Affixes
- AcronymFinder, All Acronyms or The Acronym Server – Abbreviations / Acronyms
- Chat Words Dictionary – Chat Abbreviations
- Fraze.it – Sentence Search
- DescribingWords – Adjectives
- Better Synonyms – Synonyms
- Thsrs – Synonyms
- Synonym.com – Synonyms
- Feeels – Emotion Synonym Chart
- Gender Neutral Dictionary – Gender Neutral Language Dictionary
- PrideFlags – LGBT Flag Index
- TheIdioms – Idiom Dictionary
- RhymeZones or Rhymer – Rhyme Dictionary
- TheDevilsDictionary – Cynical Dictionary
- WordSafety – Swear Word Indexes
- FreeMdict – Dictionary Downloads / Archive
- PyGlossary – Convert Dictionary Files
▷ Encyclopedias
- 🌐 List of Encyclopedias – Online Encyclopedia Index
- ⭐ Wikipedia – Encyclopedia / Content List
- ⭐ Wikipedia Frontends – WikiWand or ModernWiki
- ⭐ EncycloSearch or EncycloReader – Encyclopedia Search Engines
- ⭐ Wolfram Alpha – Searchable Knowledgebase
- Omniglot – Writing Systems & Languages Encyclopedia
- Archivy – Self-Hosted Wiki
- Simple Wiki – Simplified Wikipedia / Auto-Redirect
- Britannica
- EverybodyWiki
- Encyclopedia
- NewWorldEncyclopedia
- Citizendium
- Wikitia
- InfoPlease
- Refdesk
- HandWiki
▷ Wikipedia Tools
- 🌐 Wiki Portals – Wiki Portals Navigation
- HatNote – Top Pages
- Reversepedia – Page Connections
- Wiki Dark Mode – Dark Mode
- wik – Wiki TUI
- CDPedia – Offline View
- WikiExtractor – Extract Text
- Substance – Extract Markdown
- UrlShortener – Shorten URLs
- WikiNearby – Location Search
- EntiTree – WikiData Visualization Tool / GitHub
- Wiki Timeline – Create Timelines from Wiki Articles