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Pretty-print or minify CSS in one panel—switch Format and Minify anytime.
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Private on your device
Your information stays on your device and is not uploaded.
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Paste HTML to format it with readable indentation or minify it by removing comments and extra whitespace. Processing works on your device.
How to use this tool
1. Paste source text, code, or data into the HTML Formatter and Minifier input panel. 2. Choose transform or validation options shown for HTML Formatter and Minifier. 3. Run HTML Formatter and Minifier or read automatic output. 4. Review errors or diff output carefully. 5. Copy the transformed result. Processing runs on your device; inputs are not uploaded to our server.
Worked example
Example: paste a small sample input into HTML Formatter and Minifier, run the transform or validation, and compare the output with the before text—fix any syntax errors reported before copying.
How it works
Paste HTML to format it with readable indentation or minify it by removing comments and extra whitespace. Processing runs on your device.
Limitations
Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.
Privacy and file handling
Your data stays on your device and is not uploaded.
FAQ
Frequently asked questions
Does this validate HTML?
It formats or minifies HTML markup. It is not a full HTML5 validator.
Is my HTML stored?
No. Everything stays on your device.
Is HTML Formatter and Minifier free to use?
Yes. Utilnivo tools are free to use and do not require an account.
Related pages
- Formatters — compare developer tools and read FAQs
- Browse all free online tools on Utilnivo
- Explore more developer tools on Utilnivo
- CSS Formatter and Minifier — Pretty-print or minify CSS in one panel—switch Format and Minify anytime.
- JavaScript Formatter and Minifier — Pretty-print or minify JavaScript in one panel—switch modes on the same input.
- HTML Encoder and Decoder — Encode or decode HTML entities.
- JSON Formatter — Format, minify, and validate JSON with optional key sorting.
- JSON Compare — Compare two JSON documents and list structural differences.
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