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Pens
Online code editor environment that can run code
Key links
Uncategorized Links
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Codeshare
- Share Code in Real-time with Developers
An online code editor for interviews, troubleshooting, teaching & more…
- Share Code in Real-time with Developers
Online playgrounds
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Fiddles
- Go, C, JS, Python, etc.
- JS Fiddle
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CodePen
- An online community for testing and showcasing user-created HTML, CSS and JavaScript code snippets.
- Code Sandbox
- REPL
About
Mostly for HTML, CSS and JS, some also run other server-side languages.
A pen or sandbox supports development within an online IDE.
It makes it easy to create and test a demo. You can usually login and share a link so others can see your code and run it and see the resuls.
Some like CodePen provide easy loading of JS packages and of transpiling like JSX, Pug, Less, SASS, etc. Saving effort setting up a local dev environment or a full site.
Related
See also Playgrounds section on the Python resources page.
PythonAnywhere can also work as a pen to testing Python code in the cloud and sharing your console, though service is intended for hosting web apps built on Python.