Show HN: Web Maker – Blazing fast & open-source Codepen like playground Posted by chinchang on Monday January 09, 2017 @09:26AM from the show-hn dept. https://github.com/chinchang/web-maker ( 5 comments | 25 points | on HN )
But please do not replace the new tab without asking, it's very annoying. Filed a bug.