Private / No Upload

Minify a JavaScript file privately

Use the browser JavaScript minifier for snippets and quick output checks. For production bundles, keep using your build pipeline.

Runs in your browser

HappyFormatter tools process pasted snippets client-side for quick, privacy-first developer workflows.

No upload

HappyFormatter tools process pasted snippets client-side for quick, privacy-first developer workflows.

No account

HappyFormatter tools process pasted snippets client-side for quick, privacy-first developer workflows.

Steps

  1. 1 Paste JavaScript into the private minifier.
  2. 2 Format first if the source is hard to read.
  3. 3 Click Minify code and check size stats.
  4. 4 Copy the minified result for your workflow.

Before

Whitespace is removed while preserving the simple function.

function add(a, b) {
  return a + b;
}

Output

function add(a,b){return a+b}

After

Minified output is smaller.

function add(a,b){return a+b}

Output

Compact JavaScript file

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