JS Minifier

Strip comments and whitespace from JavaScript code. Runs entirely in your browser.

Input JavaScript

Minified output

JS Minifier

Lightweight client-side JavaScript minifier — no AST parsing, no server round-trip. Ideal for small inline scripts and configuration objects. For production bundles, use a proper build tool (Terser, esbuild).

Removes // line comments and /* block comments */
Strips leading/trailing whitespace from each line
Collapses consecutive blank lines
Preserves string literals and regex patterns