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JavaScript Formatter/Minifier

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Last updated: 2026 · Free online tool

What is JavaScript Formatter/Minifier?

Free online tool to format or minify JavaScript code with Prettier

How to Use

  1. 1
    Enter JavaScript — Paste your JavaScript code on the left.
  2. 2
    Select mode — Choose format or minify mode.
  3. 3
    Execute — Click the execute button and the result will be displayed.

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Frequently Asked Questions

Currently only JavaScript (ES2024) is supported. TypeScript support is planned for a future update.

Indentation size can be selected, and singleQuote and trailingComma are applied by default.

Yes, modern syntax including import/export, dynamic import, and top-level await are supported.

No. Prettier standalone runs directly in the browser.

Yes, the Babel parser automatically handles JSX syntax.

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