OpusDesk Hub What this tool does
Indent or compact pasted HTML markup. The browser HTML parser builds a document or fragment, then the formatter serializes its nodes with the selected indentation or compact spacing. The parser can repair malformed markup. Inline text spacing and preformatted/script/style content need inspection in the result.
How to use HTML Formatter
- Prepare the input. Paste HTML source.
- Run or configure the tool. Choose indentation and Format, or select Minify.
- Check and use the output. Compare the resulting markup and copy it only after checking significant whitespace.
How this tool works
The browser HTML parser builds a document or fragment, then the formatter serializes its nodes with the selected indentation or compact spacing. The parser can repair malformed markup. Inline text spacing and preformatted/script/style content need inspection in the result.
Worked example
Input: Minify: <div>
<p>QA</p>
</div>
Output: <div><p>QA</p></div>
Limits, assumptions and interpretation
This is a markup formatter, not a standards validator, sanitizer or JavaScript/CSS formatter.
- Browser parsing may normalize tags, attributes or invalid nesting; keep the original source.
- Test scripts, styles, templates and significant whitespace after formatting. The output is text; do not execute untrusted HTML.
Supported inputs and limits
- Minify: <div> <p>QA</p> </div>
- This is a markup formatter, not a standards validator, sanitizer or JavaScript/CSS formatter.
- Browser parsing may normalize tags, attributes or invalid nesting; keep the original source.
- Test scripts, styles, templates and significant whitespace after formatting. The output is text; do not execute untrusted HTML.
Frequently asked questions
What does this tool actually do?
The browser HTML parser builds a document or fragment, then the formatter serializes its nodes with the selected indentation or compact spacing. The parser can repair malformed markup. Inline text spacing and preformatted/script/style content need inspection in the result.
What should I check before using the result?
This is a markup formatter, not a standards validator, sanitizer or JavaScript/CSS formatter. Browser parsing may normalize tags, attributes or invalid nesting; keep the original source. Test scripts, styles, templates and significant whitespace after formatting. The output is text; do not execute untrusted HTML.
Is information sent to a server?
Tool inputs are processed in this browser. This product does not use analytics or send your input to an external API. Clicking an external website link still visits that website.