No generic arcade clones. Built for developers, students, and engineers who want to test code syntax speed, hunt down real bugs, and master JavaScript runtime quirks.
Spot & fix production bugs
Hunt down subtle async traps, stale React closures, and MongoDB memory defects in real production TypeScript code. Rank your debugging level!
Real code typing showdown
Typing test designed for developers! Race to type real TypeScript interfaces, server actions, and async pipelines. Track live WPM & CPM.
60-second runtime duel
Test your mental model of JavaScript runtime quirks, tricky array coercions, floating-point math, and Event Loop microtask ordering.
Interactive pattern mastery
Crack real-world regex puzzles. Test patterns in real time against validation test cases for handles, hex codes, and semantic versions.
Most platforms focus solely on abstract algorithmic puzzles. DevArena focuses on production-grade debugging, TypeScript generic typing, and real-world system quirks encountered daily in production at BirdMint.
Typing real code with symbols, brackets, and semicolons is a different skill than typing prose. CodeRacer sharpens your keyboard muscle memory and syntax intuition.
No paywalls, no required sign-ins, zero data harvesting. Built by Pankaj Kumar Pandey to help students and software engineers level up their engineering craft.