JS Formatter
Beautify and format JavaScript code online for free. Or minify JS to reduce file size. Fast browser-based JS formatter.
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About JS Formatter
Format messy or minified JavaScript into clean, readable code with proper indentation. Or minify JavaScript to remove whitespace and comments for faster loading. All processing is instant and happens entirely in your browser.
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Your privacy is built in
Everything in JS Formatter runs locally in your browser — your data never leaves your device and is never uploaded to a server, so nothing you enter is stored or seen by anyone else. No account, no sign-up, no watermark, and completely free.
Frequently asked questions
Is this suitable for production minification?
This tool performs basic minification (removes comments and whitespace). For production, use a dedicated bundler like webpack, esbuild, or terser for advanced optimizations.
Can it format TypeScript?
The formatter works on JavaScript and TypeScript syntax since they share the same block structure.