Which languages are supported?

JavaScript/TypeScript, CSS, HTML, JSON, XML/SVG and SQL, with automatic detection of what you paste.

Is this a full compiler like Terser?

No. It removes comments and collapses whitespace conservatively — it does not rename variables or tree-shake.

Can it format code again?

Yes, switch to Beautify mode and pick an indent size to re-indent minified code.

Can I download the result?

Yes, use the Download button on the output panel.

Is my data uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your input never leaves your device and nothing is logged or stored on our servers.

Code Minifier & Beautifier

Minify or beautify JavaScript, CSS, HTML, JSON, XML and SQL.

Support

Works Offline

Privacy First

No Login

No API

Language

Mode

Indent

Drop a file here

or choose a code file — it is processed in your browser

Conservative transforms: comments and whitespace are removed or re-indented, but nothing is renamed, tree-shaken, or restructured. Always test minified output before shipping it.

Input

Minified output

function greet(name){console.log('Hello, '+name)}

Before

74 B

After

49 B

Saved

33.8%

About the Code Minifier & Beautifier

One tool for compacting or formatting code in JavaScript/TypeScript, CSS, HTML, JSON, XML/SVG and SQL. Comments and whitespace are stripped safely around strings and regular expressions, or the code is re-indented with your chosen indent size. Language is auto-detected from what you paste or drop, and byte-size savings are shown for every run.

Examples

Minify CSS

body {
  color: red;
}

Output

body{color:red}

Beautify JSON

{"a":1,"b":[2,3]}

Output

{
  "a": 1,
  "b": [2, 3]
}

Keyboard shortcuts

Copy the main outputCtrl / ⌘ + Shift + C
Download the resultCtrl / ⌘ + S
Share this toolCtrl / ⌘ + Shift + S
Reset the inputsAlt + R
Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

Version 2.0.0 · Updated 2026-08-21 · Runs entirely in your browser