p5.js editor + browserify + browser sync

The p5.js Editor with some additions such as

• Code next to your sketch, no need for another browser window.
• Live reload thanks to browser sync, save any file and your sketch is reloaded for you.
• Real Chromium Developer Tools ( seperate window ).
• Local server address for external browser use ... if you so choose.
• Write modular code and bundle into one JS file with browserify
• .map file created for debugging.

_source