jsFiddle lets developers play with the three core elements of Web development.

CodePen is an online community for testing and showcasing user-created HTML, CSS and JavaScript code snippets.

CSSDesk is a online HTML/CSS sandbox.

Cameyo is an application virtualization product.Virtualize applications with CameyoCameyo It aims to virtualize Windows applications so that they can run on o…

Dabblet is an interactive CSS playground and code sharing tool.