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Code formatter & minifier
Format JavaScript, CSS and HTML, or minify JavaScript locally.
Content is processed in this browser, without upload or storage.
How it works & common questions
Which languages are supported?
Prettier formats JavaScript, CSS and HTML; Terser minifies JavaScript. Input is never executed. Obfuscation and CSS/HTML minification are not included.
Is code uploaded?
No. Libraries load from this site and processing happens locally. Limit: 200 KB. Syntax errors include location information. Preserve originals and verify minified code before use.