Code Snippet Formatter
Paste HTML, CSS, or JavaScript and get cleanly indented output in one click. No libraries, no uploads.
100% client-side · no upload
How to use
- Paste your HTML, CSS, or JavaScript snippet into the input box.
- Select the language from the dropdown and click Format.
- Review the formatted output and click Copy to copy it to the clipboard.
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常見問題
- Is this tool free?
- Yes, completely free with no signup required.
- Does my data leave my device?
- No. Everything runs in your browser — nothing is sent to any server.
- Does it work on mobile?
- Yes. The tool is mobile-first and works on any modern browser including iOS Safari and Android Chrome.