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 Enter JavaScript — Paste your JavaScript code on the left.
- 2 Select mode — Choose format or minify mode.
- 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.