Screeps - MMO strategy sandbox game for programmers : A strategy sandbox MMO game with a persistent open world where you play by writing JavaScripts to control your units. They live within the game and op...
Loupe.js : Magnifying glass to certain parts of an image
Simplql : Query csv, xls and json with SQL. Simplql is a private and fast in-browser tool that lets you query your data files with your favourite query language...