HTML Beautifier
HTML Beautifier reformats minified, generated or inconsistently indented markup into clean, properly nested HTML that is easy to read and review. Choose 2- or 4-space indentation to match your project's style.
It is the tool to reach for when you need to understand a one-line page, inspect a fragment copied from the network tab, or tidy up markup before committing it. Formatting runs entirely in your browser.
How to use HTML Beautifier
- 1
Paste your HTML
Drop in minified or untidy markup.
- 2
Pick an indent size
Switch between 2 and 4 spaces of indentation.
- 3
Copy the formatted markup
Grab the clean, indented output with the copy button.
Readable markup, faster debugging
Minified HTML is great for production but painful to read. Beautifying restores the line breaks and indentation that reveal the document's structure, so nested elements, unclosed tags and misplaced content become obvious at a glance.
The beautifier preserves the meaning of your markup exactly — it only adds the whitespace that browsers ignore — so you can format, inspect and then re-minify without any risk to the content.
Beautify then minify
A common workflow is to beautify a vendor or build-output file to understand and edit it, then run the result back through a minifier before shipping. The two tools are exact opposites and round-trip cleanly.
Indentation is purely cosmetic, so the choice between 2 and 4 spaces is about matching your team's conventions, not correctness.
Frequently asked questions
- Does beautifying change my markup?
- No. It only adds indentation and line breaks, which browsers ignore. The elements, attributes and content are unchanged.
- Can it fix invalid HTML?
- It reformats what you give it and will indent according to the tags it finds, but it is a formatter, not a validator, so it does not repair broken markup.
- Is my HTML sent to a server?
- No. Formatting runs entirely in your browser.
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