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JavaScript Minifier & Beautifier

Minify JavaScript by removing comments and whitespace, or beautify compressed code for readability. See the file size reduction.

Input JavaScript0 B
Output0 B

Basic minification: strips comments and whitespace. For production, use a full minifier like Terser.

How to Minify JavaScript

Compress or beautify JavaScript and compare file sizes with The IT Hustle's free JS Minifier.

  1. 1
    Paste your JavaScriptDrop your script into the input panel, or click Load Sample for a demonstration.
  2. 2
    Pick Minify or BeautifyMinify removes comments, newlines, and extra whitespace; Beautify re-indents compressed code so you can actually read it.
  3. 3
    Compare the sizesInput size, output size, and percentage savings are displayed so you can see the effect at a glance.
  4. 4
    Copy the resultClick Copy Output to grab the processed code.

Frequently Asked Questions

No. It performs safe whitespace-and-comment minification only — no variable mangling, dead-code elimination, or syntax transforms. Your code stays byte-for-byte equivalent in behavior and remains debuggable.

Yes, because only comments and formatting are removed. One caveat inherent to JS minification: code relying on automatic semicolon insertion can be fragile when newlines are removed, so well-formed code with explicit semicolons is safest.

For production bundles, no — build-tool minifiers like Terser also shorten identifiers and eliminate dead code for much smaller output. This tool shines for quick tasks: inline scripts, CMS snippets, or inspecting what someone else's minified file actually does via Beautify.

No. Minification and beautification run entirely in your browser, so proprietary code never leaves your machine.

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