Your Instant JavaScript Testing Ground
A powerful, open-source playground for testing code snippets, solving coding challenges, and practicing your algorithm skills. Free forever, because it's made by developers for developers.
Write, test, and debug JavaScript code instantly in our open-source playground. Perfect for algorithm practice, testing snippets, and preparing for technical interviews. Join our community of developers who believe in open and accessible tools.
Download PlayJS
macOS
For Apple Silicon and Intel Macs
4GB RAM • 200MB Storage
Windows
Windows 10 and above
4GB RAM • 200MB Storage
Built for Developers, Open for Everyone
An open-source JavaScript playground in its early stages, built with core developer features. Join us in shaping its future through community contributions.
Open Source
- 100% Free - Always free and open source
- Community Driven - Built by developers, for developers
- Transparent - Open development process
- Customizable - Fork and modify as needed
Developer Focused
- Professional Editor - VS Code-like experience
- Smart Completion - Intelligent code suggestions
- Error Detection - Real-time error highlighting
- NPM Support - Import packages directly
Auto Code Execution
- Live Results - See output as you type
- Error Handling - Instant error feedback
Browser APIs
- Fetch API - Make HTTP requests easily
- Web APIs - Access modern browser features
Safe and Open
Focus on solving problems without worrying about setup or security. As an open-source project, our code is transparent and community-reviewed. JS Playground runs your code in an isolated sandbox environment, making it perfect for testing and practicing without any risks.
Facing Issues?
Found a bug or have a feature request? We'd love to hear from you!
Report an Issue