CSSDesk

CSSDesk is a online HTML/CSS sandbox.

15 Alternatives To CSSDesk

Atom

At GitHub, we’re building the text editor we’ve always wanted: hackable to the core, but approachable on the first day without ever touching a config file. We can’t wait to see what you build with it.

CodeBitt

Web app for sharing code snippets
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CodePen

A front end web development playground.

CodeSandbox

Online playground for React

Codeanywhere

Codeanywhere is a complete toolset for web development. Enabling you to edit, collaborate and run your projects from any device.

HTMLPen

HTMLPen is a free online Visual HTML Editor (WYSIWYG Editor) program allows you visually edit, preview, and run your html code. It is also a powerful online text editor.
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JSitor

Test your NodeJS, JavaScript, CSS, HTML online with JSitor code editor.

Plunker

Plunker is an online community for creating, collaborating on and sharing your web development ideas.

Snipper App

A simple snippet manager in the menubar
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Up1

Client-side encrypted file host.

codebunk

Realtime Collaborative Editor with Code Execution, REPLs and Chat

hastebin

Pad editor for source code.
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Paste

PASTE is software for storing and sharing text. The software was originally forked from the outrageously popular pastebin. com before the domain was sold in 2010. Read more about PASTE.