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Pick a category to scan the registry. A green check on a card means the maintainer published that manifest themselves at their own domain. For natural-language search, use /find .
Showing 1–60 of 214 (10490 total) · Search by description →
Flashcards & Spaced Repetition
Anki
The serious-people flashcard app - spaced-repetition memorization, fully scriptable, syncs across devices, free on every platform except…
AI Tutoring & Study Aids
NotebookLM
AI‑enhanced note‑taking app that lets users create, organize, and search notes with natural language.
STEM Tools & Simulations
Streamlit
Open-source framework for building data science and machine learning web apps in Python.
STEM Tools & Simulations
OpenRocket
Model rocket simulator
STEM Tools & Simulations
GeoGebra
Solve, save and share math problems, graph functions, etc
STEM Tools & Simulations
Netron
Visualiser for neural network, deep learning, and machine learning models
STEM Tools & Simulations
Netron
Visualizer for neural network and machine learning models.
LMS & Course Platforms
Processing
Flexible software sketchbook and a language for learning how to code
LMS & Course Platforms
Scratch
Programmes interactive stories, games, and animations
Flashcards & Spaced Repetition
Mochi
Study notes and flashcards using spaced repetition
STEM Tools & Simulations
Qalculate
Calculate non-trivial math expressions. Unit conversions, symbolic calculations and more.
STEM Tools & Simulations
Falstad CircuitJS
Electronic circuit simulator
STEM Tools & Simulations
periodic-table-cli
View and explore the Periodic Table of Elements.
AI Tutoring & Study Aids
Atlas of a Life
Talk to history's greatest minds on an interactive globe
AI Tutoring & Study Aids
Sci-Hub EVA
Cross-platform Sci-Hub GUI application powered by Python and Qt
Interview & Cert Prep
LogicRivals
1v1 coding E-sports arena & cheat-proof hiring SaaS
Interview & Cert Prep
Mobile System Design
Android interview prep. 13 chapters, 8 labs. Free. │
AI Tutoring & Study Aids
TraceCode
Learn algorithms by watching them run
STEM Tools & Simulations
AstroGrid - Universe Engine
Explore the entire universe in your browser, in real 3D
STEM Tools & Simulations
Algodoo
Draw and interact with physical systems
STEM Tools & Simulations
Avogadro
Molecule editor and visualiser
STEM Tools & Simulations
Beam2Beam
Solve 2D frames and export diagrams to CAD in seconds.
STEM Tools & Simulations
Celestia
Space simulation for exploring the universe in three dimensions
LMS & Course Platforms
GitQuest
Learn Git by solving challenges in a fake terminal
STEM Tools & Simulations
BEAST2
Bayesian evolutionary analysis by sampling trees
Interview & Cert Prep
Vantage in Google Labs
Practice & assess future-ready skills with AI-simulated team
School Admin & Classroom
INGInious
Intelligent grader that allows secured and automated testing of code made by students.
LMS & Course Platforms
Melodics
Helps you learn to play your instrument
LMS & Course Platforms
Moodle
Learning and courses platform with one of the largest open source communities worldwide.
Language Learning
Sambhedanam
Duolingo for Indian Constitution & Vedas
STEM Tools & Simulations
Swama
Machine-learning runtime
LMS & Course Platforms
KarpaChess
Learn Chess · Every Move Teaches
LMS & Course Platforms
Philosophizeme
Learn Philosophy The Fun Way
STEM Tools & Simulations
Cinderella
Interactive Geometry Software
School Admin & Classroom
Classroom Mode for Minecraft
Classroom management app for Minecraft Education Edition
LMS & Course Platforms
Coursera
Online platform offering courses, specializations, and degrees from universities and companies.
AI Tutoring & Study Aids
LetMeTeach
Ask anything. Learn it visually, instantly.
LMS & Course Platforms
Canvas LMS
Learning management system (LMS) that is revolutionizing the way we educate.
AI Tutoring & Study Aids
Crin AI
Learn about AI & watch text become tokens in a node graph
AI Tutoring & Study Aids
IntegratePDF
Talk to your PDFs. Out loud. In real time
STEM Tools & Simulations
Mathcha Notebook
Mathematics editor
Interview & Cert Prep
SecuSpark
Turn boring cert exams into a MMORPG with boss fights
STEM Tools & Simulations
Way of Indian Math
Solve 87 × 13 in your head. In under 5 seconds.
LMS & Course Platforms
edX
The Open edX platform is open-source code that powers edX.org.
School Admin & Classroom
Gibbon
Flexible school management platform designed to make life better for teachers, students, parents and leaders.
LMS & Course Platforms
Lebnexis Tahaddiyat
Real-world challenges to help developers build real projects
LMS & Course Platforms
OpenOLAT
Learning management system for teaching, education, assessment and communication.
School Admin & Classroom
RosarioSIS
Student Information System for school management. Features students demographics, grades, scheduling, attendance, student billing…
School Admin & Classroom
Safe Exam Browser
Web browser environment to carry out e-assessments safely
LMS & Course Platforms
Skool
Skool is an online platform that integrates community forums with course content for creators.
Language Learning
Word River
A beautiful word tracker to get toddlers talking
STEM Tools & Simulations
mdlt
Do quick math right from the command line.
Language Learning
Tarjome
Translate Persian & Finglish, with word-by-word breakdowns!
LMS & Course Platforms
Git-it
Desktop app for learning Git and GitHub
LMS & Course Platforms
Greenfoot
Teach object orientation with Java
LMS & Course Platforms
ILIAS
Learning management system that can cope with anything you throw at it.
STEM Tools & Simulations
Learn Math Faster
Mental math battles that make kids faster every day
LMS & Course Platforms
LearnWorlds
Platform for creating and selling online courses.
Interview & Cert Prep
LeetCode App
LeetCode at Your Fingertips
Interview & Cert Prep
Mockly
Live Multilingual Voice AI for JD-Matched Interview Perp