How to use
Paste code or choose a local file, confirm the language, set indent and print width, then press Format code. Copy or download the result without overwriting your source.
Code formatter
Format source with Prettier, without uploading it.
Choose a language, set indent and print width, and keep the source and formatted result separate. Formatting runs locally in a browser worker.
Runs locallyNever executes code1 MiB source limit
Code formatter workspace
Source
0 characters · 0 / 1,048,576UTF-8 bytes
Result
Quick feedback
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Privacy
Formatting runs entirely in your browser through a dedicated worker. Source and result stay in page memory and are not added to URLs, storage, analytics, or remote processing requests.
Limitations
Supported languages are JavaScript, TypeScript, JSX, TSX, CSS, SCSS, Less, HTML, Vue, Angular HTML templates, GraphQL, Markdown, MDX, and YAML. Source is limited to 1 MiB and is never executed, compiled, linted, or imported. Use theJSON Formatter orSQL Formatter for those jobs. Very large results may hide the on-page preview while Copy and Download remain available.