CodinGame
CodinGame teaches and sharpens your programming skills by turning coding challenges into actual games you play by writing code.
Latest Update: 2026-09-02
CSSBattle
CSSBattle is a fun, competitive game where you recreate target images using the smallest, cleverest CSS possible — pure front-end practice.
Latest Update: 2026-09-02
Leetcode
An online coding platform that provides algorithm and data structure challenges for software engineers to practice and enhance their coding skills.
Latest Update: 2024-07-22