Zed
The fast, collaborative editor.
Developer ToolsFree· OSSNo ratings
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About CodePen
CodePen is the social playground for HTML, CSS, and JavaScript — prototype ideas instantly and learn from millions of public pens.
Key features
- Instant front-end sandbox
- Preprocessor support
- Community showcases and challenges
Pros
- Zero-setup experimentation
- Endless learning by example
Cons
- Not for multi-file projects
- Private pens need Pro
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