Import existing JavaScript, JSON or text and download the useful result.
CHECK & OPTIMIZE · FREE JAVASCRIPT TOOL
JavaScript Minifier with Size Comparison
Remove safe comments and unnecessary whitespace, then compare original, minified and gzip-estimate sizes.
Free to useNo sign-upRuns in your browser
JS
JS MinifierLocal browser processing
Ready in your browser
Your processed result will appear here.
WHY USE IT
Fast JavaScript work without setup
Your ordinary source and data are processed locally instead of submitted to our server.
Safety limits and verification boundaries are stated clearly where they matter.
HOW IT WORKS
Three straightforward steps
- 01Add source or data
Type, paste or import the content you want to process.
- 02Choose the operation
Select any relevant format, algorithm or display option.
- 03Review and export
Copy the result or download it as a reusable file.