JS Runner

Write and run JavaScript/HTML code instantly! JS Runner is a handy tool for learning JavaScript/HTML or running JavaScript for daily tasks. * console.log() is now supported! Simply type JavaScript code and press "Command-R" to run it, that is all! You don't event need to save the file first! * Features - Type and run JavaScript/HTML code instantly - Syntax highlighting - Auto completion - Various themes * FAQ Q: What kind of JavaScript engine does JS Runner use? A: JS Runner uses the WebKit JavaScript engine and supports most web browser features.