Prettier Code Formatter — Free Online Tool
Paste any code and format it instantly using Prettier's standalone browser build. Supports JS, TS, CSS, HTML, JSON, and Markdown. No server, no uploads.
100% client-side. No uploads. Your data never leaves your browser.
How to use Prettier Code Formatter
- Paste your code or pick a preset
- Select the language
- Click Format to see formatted output
Frequently Asked Questions
Which languages are supported?
JavaScript, TypeScript, CSS/SCSS, HTML, JSON, and Markdown.
Can I configure Prettier options?
Currently uses Prettier's defaults (2-space indent, double quotes, 80-char line width). Custom config is on the roadmap.
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