Web apps // Websites¶
Let's you solve problems with code. Ranking system and social hub implemented. IMHO the best site to learn new languages.
Geared more towards common technical interview questions and expanding knowledge level.
Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.
Try Clash of Code mode - battle against your friends in problem solving tasks.
100+ open-source clones and alternatives of popular sites like Airbnb, Amazon, Instagram, Netflix, Tiktok, Spotify, Whatsapp, Youtube, etc.
Visualization of most common sorting and searching algorithms
Similar to VisuAlgo
In-browser code execution¶
Search all open-source code using regex or full text search. Useful for finding code examples of XYZ library or function.
Similar to SourceGraph; seems to have less repos indexed, but is faster
IDEs // Editors¶
PDF viewers // editors¶
Various python, bash, sql snippets
General purpose API; collection of various tools