JavaScript Minifier Online — Free Tool
Compress and minify JavaScript code instantly in your browser. Reduce file size by removing whitespace, comments, and optimizing syntax.
Why Minify JavaScript?
- Faster Load Times: Smaller files mean faster downloads
- Bandwidth Savings: Reduced file size saves bandwidth for your users
- Production Optimization: Essential step in any build pipeline
- Code Obfuscation: Minified code is harder to read, adding a basic layer of protection
How It Works
The JavaScript Minifier:
- Removes all comments (single-line and multi-line)
- Strips unnecessary whitespace and line breaks
- Removes unused semicolons where safe
- Preserves string literals and regex patterns
How to Use
- Paste your JavaScript code in the input area
- Click Minify to compress
- Copy the minified output or use Copy to Clipboard
Privacy & Security
All processing happens entirely in your browser. Your JavaScript code is never uploaded to any server.