Pick a language, a level and the topics you want, then beat everyone to the last semicolon.
Finish a snippet while the clock runs and the next one appears. Ranking is by characters typed.
Elo-style ratings. Win a race and you take points off whoever you beat — beating someone stronger is worth more. live
No rated races yet. Register and beat a bot to get on the board.
Every finished race is posted here. Like it, argue in the comments, or report it.
No races posted yet. Go and set a time.
Everyone here right now. Send an invitation and it lands on their screen the moment you click. live
Nobody else about right now.
Open rooms anyone can walk into, and private ones that want a key. live
No lobbies up yet. Open one and it shows here for everyone.
Everything there is to earn, and how many people have earned it.
Nothing yet. Race one and that changes.
Nothing earned yet.
No races posted yet.
Add code of your own. Public snippets join everyone's races; private ones stay yours.
You have not added any yet.
Three separate players reporting the same thing hides it automatically.
Ask whoever opened it for the key.
click here and start typing — indentation is auto-skipped
Simulated: the expected output for this snippet, not a live interpreter.
Bots are always ready, so the race starts when you hit Ready.
You were given a name and avatar automatically. Change either one here — this browser is recognised on every visit.
Drag the picture to reposition it.
Drag the picture to reposition it.
No country matches that.