JavaScript Formatter
Format JavaScript code with Prettier-powered beautification
Why Use This Tool?
- Powered by Prettier — the industry-standard code formatter.
- Customizable formatting options for quotes, semicolons, and indentation.
- All processing happens in your browser via Prettier standalone.
How to Use
- Paste your JavaScript code into the input area
- Configure options: single quotes, semicolons, tab width
- Click Format to beautify your code
- Copy the formatted output from the right panel
FAQ
What formatter does this use?
This tool uses Prettier standalone with the Babel parser. It is the same formatter used by millions of developers in their IDEs and CI pipelines.
Does it support TypeScript?
Currently this tool formats JavaScript (ES6+) and JSX. TypeScript formatting may be added in the future.
Why does it take a moment to format?
Prettier is loaded on-demand (lazy loaded) to keep the initial page load fast. The first format may take a moment to download the formatter.
Is my code sent to a server?
No. Prettier runs entirely in your browser. Your code never leaves your device.