Apps similar to exercism include freeCodeCamp, which is free and open source. Other options are Codecademy, SoloLearn, W3Schools and LeetCode. Code Learning Services like exercism are a crowded field, with more than 50 alternatives for the web, iPhone, Android, Mac and iPad.
This version of Ruby Warrior is a project by Bloc, a part-time online coding bootcamp for people who want to keep their current job, learn how to code, and become a full-time software developer.
It provides tutorials about JavaScript, react, Vue, and other things related to web development.
AI-powered interview preparation platform with structured learning paths, coding practice, system design, and mock interviews.
Go Interview Practice is a platform with coding challenges designed to help you ace your technical interviews in Go. Solve real-world problems, get instant feedback from automated tests, and even simulate interviews with AI-powered feedback.
VIM Adventures is an online game based on VIM's keyboard shortcuts (commands, motions and operators). It's the "Zelda meets text editing" game. It's a puzzle game for practicing and memorizing VIM commands (good old VI is also covered, of course).
Israel
The hands-on AI trainer that refuses to write your code. Unlike course platforms, CodeTrain teaches on your own repository; unlike assistants, it never writes the code for you.
United States
One programming challenge a day, the same one for everyone, solved in the browser in 11 languages with tests running in a sandbox.
Germany
EU
Tunisia
Mutation testing practice platform for QA Engineers. Write pytest tests that catch hidden bugs in AI-generated code. 339 challenges across real-world domains, browser-based execution, instant feedback. Like LeetCode but for writing tests, not solving algorithms.
Learn computer vision, machine learning and LLMs by writing real code: structured study plans plus 1,000+ hands-on Python problems.
United States
Genroam is a free online platform providing career roadmaps, guides, jobs, internships, and visa resources tailored for international students.
Free, browser-based coding courses in Python, SQL, R, Excel, Web Development, 3D Modeling and more. Features auto-graded exercises, career pathways, and verifiable certificates. Available in English, French, and Haitian Creole.
South Korea
Canada