HTML Formatter
Format HTML online free with pretty-print indentation. Beautify minified markup in your browser, no upload, no account required.
Runs locally in your browser. Your input is not uploaded to DevToolMate servers.
Format only
Formats HTML as text only. Output is not executed or rendered as a live page preview.
Developer Quick Tips
- Format HTML online by pasting minified markup, selecting indent size (2 or 4 spaces), and pressing Ctrl/Cmd+Enter to beautify instantly.
- HTML formatter outputs text only; markup is never executed or rendered as a live page preview.
- Download formatted output as formatted.html or copy to clipboard. Your input stays on your device for the current session only.
- Beautify messy markup to review document structure clearly before minifying with HTML Minifier.
- Open .html or .htm files directly within the site's byte limits, then download the formatted result.
Frequently asked questions
How do I format HTML online?
Paste your HTML into the tool, select your preferred indent size (2 or 4 spaces), and click format or press Ctrl/Cmd+Enter. The tool beautifies your markup with readable indentation and line breaks. Output is text only, never executed or rendered as a live page.
What is an HTML formatter online?
An online HTML formatter beautifies minified or messy markup by adding consistent indentation and line breaks. This makes nested tag structure easier to review and debug. HTML Formatter runs entirely in your browser with no upload or account required.
Can I format HTML online without uploading?
Yes. HTML Formatter is privacy-first and runs entirely in your browser. Your input is never uploaded to DevToolMate servers or any external API. Processing stays on your device for the current session only.
Does HTML formatter online require an account?
No account or login is required. HTML Formatter is a free, browser-based tool that works on any device with a web browser. Just open the page and start formatting.
What is the difference between pretty-print and format HTML?
Pretty-print and format are synonymous. HTML Formatter adds consistent indentation and line breaks to minified or messy markup, making nested tags readable. Output is text only and is never executed or rendered as a live page.
Does this HTML formatter validate or fix broken markup?
No. HTML Formatter formats markup as text only. It does not validate tag nesting, fix invalid HTML, or check browser compatibility. Use it to beautify readable markup, not to repair broken code.
Related tools
- HTML Minifier: Online HTML minifier - compress HTML in your browser by removing comments and whitespace. No upload, no account required. Runs locally.
- CSS Formatter: Format and beautify CSS online in your browser. Pretty-print minified stylesheets with custom indentation. No upload, no account, privacy-first.