Pastebin.com
Free
Pastebin is a website where you can store text online for a set period of time.
jsFiddle
Free
jsFiddle lets developers play with the three core elements of Web development.
JS Bin
Freemium
JS Bin is a live pastebin for HTML, CSS & JavaScript and a range of processors, including SCSS, CoffeeScript, Jade and more.
repl.it
Free
repl.it is a cloud coding environment.
kodeWeave
Open Source
kodeWeave is a HTML/ CSS playground app.
collabedit
Freemium
Collabedit is an online code editor that lets people collaborate in real-time.
Google Chrome Developer Tools
Open Source
The Chrome Developer Tools (DevTools for short), are a set of web authoring and debugging tools built into Google Chrome.
CodePen
Freemium
CodePen is an online community for testing and showcasing user-created HTML, CSS and JavaScript code snippets.
Liveweave
Free
Liveweave is a HTML5, CSS3 & JavaScript playground for web designers and developers.
Dabblet
Open Source
Dabblet is an interactive CSS playground and code sharing tool.
CSSDesk
Free
CSSDesk is a online HTML/CSS sandbox.
Compare Plunker with alternatives
Compare Pastebin.com and Plunker and decide which is most suitable for you.
Compare Google Chrome Developer Tools and Plunker and decide which is most suitable for you.