Stop Installing Libraries for Simple Features
See how vanilla JavaScript patterns replace entire libraries with 95% less code. Edit, execute, and compare in real-time.
Choose a pattern above to start exploring
Click "Run Code" to see console output and performance metrics
Tip: Press Cmd/Ctrl + Enter to run code
Modern web development often means installing dozens of npm packages for simple features. Each library adds kilobytes (or megabytes!) to your bundle, slowing down your app.
This playground shows you the alternative: elegant vanilla JavaScript patterns that do the same job with 95% less code. Edit the code, run it, see the performance difference, and use it in your projects.
Run code in sandboxed iframes and see real console output instantly
See actual execution time comparison between vanilla and library code
Share your experiments via URL and save your work automatically
Fully responsive design works on desktop, tablet, and mobile
Copy patterns directly into your projects - they just work
Code runs in isolated iframes with strict CSP policies