Prettier Formatter
Format JavaScript, TypeScript, JSON, CSS, HTML, Markdown, YAML, and GraphQL using the official Prettier engine. Configure print width, tabs, quotes, semicolons, and trailing commas — all running client-side.
Features
- 8 languages: JS, TS, JSON, CSS, HTML, Markdown, YAML, GraphQL
- Full Prettier options (print width, quotes, semicolons, tabs, trailing commas)
- Runs client-side with prettier/standalone
- Instant formatting with latency and byte diagnostics
Frequently Asked Questions
- Which languages does this support?
- JavaScript, TypeScript, JSON, CSS, HTML, Markdown, YAML, and GraphQL — all powered by Prettier's official parsers.
- Does it run server-side?
- No. Formatting runs entirely in your browser using prettier/standalone. Your code never leaves your device.
- Can I configure Prettier options?
- Yes. You can set print width, tab width, tabs vs spaces, single vs double quotes, semicolons, and trailing comma style.