JavaScript Minifier

JS

JavaScript Minifier Tool

Paste or upload JS — minify, mangle names, download or copy. Uses Terser (browser) with a built-in fallback.

Source JavaScript (editable)

Drag & drop a .js file here or click 'Upload .js'

Original: 0 bytes

Lines: 0

Gzip est: -

Options

Use Terser (recommended) Compress (Terser compress) Mangle names Toplevel scope (dangerous) Keep function names

Result

Errors & logs

Tip: For large projects consider server-side tools (Terser/webpack/rollup). This in-browser tool is fast for snippets and small files.