Learning platforms and study tools 30 tools listed.
Education
The fun, gamified way to learn a language
Free, world-class education for anyone, anywhere
Online courses and degrees from top universities
Marketplace of practical courses on any topic
Harvard's intro to computer science
Learn math, science and CS interactively
Learn to code for free with certifications
Concise video courses for developers
Flashcards and study tools for students
Modern reference management
Computational knowledge engine
Open-source software for numerical computation
Creative courses from experts
Learn to code with interactive lessons
Online classes for creative and practical skills
Daily interactive learning challenges
Interactive courses in math, science and CS
Interactive learning and quizzes
Powerful spaced-repetition flashcards
Tutorials on programming and technology
Open-source mathematics software system
Publish your notes as a website
Data science competitions and datasets
Learn to code on your phone