HTML Beautifier
Pretty-print minified HTML with 2-space indentation.
- Reading time:
- 2 min
- Last updated:
- Price:
- Free, no signup
Type or paste text to see the result.
What the HTML Beautifier does
Feed minified or messy HTML in and it comes out with clean, consistent indentation — each nested element sits on its own line, attributes intact, structure visible at a glance. A wall of one-line markup becomes something a human can actually read.
You pick the indent size, so the output matches your project's style.
Why the HTML Beautifier is useful
You can't debug what you can't read. Copied page source, CMS output and minified templates arrive as unreadable blobs, and finding one misplaced closing tag in 5,000 characters of single-line HTML is misery.
Consistent formatting also makes diffs meaningful — when each element occupies a single line, a change to one element is a one-line diff.
Also known as: html beautifier, format html, html indent, free html beautifier, online html beautifier, html beautifier online free, html beautifier tool.
How to use the HTML Beautifier
- 1
Paste the HTML
Minified, messy or mixed — anything valid.
- 2
Set your indent style
Choose spaces or tabs and the indent width.
- 3
Copy the formatted result
Clean, nested HTML, ready to read or edit.
Key features
- Consistent nesting with configurable indentation
- Preserves all attributes and content
- Handles full documents or fragments
- Keeps pre and textarea content untouched
Benefits
- Read copied or generated markup
- Find structural errors by seeing the nesting
- Give the whole team one consistent format
Real-life use cases
Inspecting a competitor's layout
A designer beautifies a copied section of page source to understand how a card grid is structured.
Reviewing CMS output
A developer formats the HTML her CMS generates to check for invalid nesting.
Rescuing an old template
A maintainer beautifies a ten-year-old template before attempting to modify it.
Tips for the best results
- Sudden indentation changes often reveal a missing closing tag — look for where the nesting stops making sense.
- Set the indentation to match your codebase — two or four spaces — before copying the result.
- Beautify before comparing two template versions; the real changes stand out.
Conclusion
Drop in the squashed markup and read what the code is actually doing.
Frequently asked questions
Does it change any attributes or content?
- No — spacing and line breaks are the only things adjusted. Your markup's meaning is untouched.
Does it repair invalid markup?
- It formats whatever you give it without correcting errors; the odd indentation it produces often helps you find the problem yourself.
What indent options are there?
- Spaces or tabs, with configurable width — 2 and 4 spaces are the common choices.
Will it format inline CSS and JS too?
- It formats the HTML structure; use the CSS and JavaScript beautifiers for the embedded code.
Can I format a huge page?
- There's no cap from our side; the only ceiling is your machine's memory.
Where does the formatting happen?
- Right here in the tab — nothing is transmitted or stored.
Related tools you may need
- HTML Formatter — Pretty-print HTML with clean indentation.
- HTML Minifier — Strip whitespace and comments from HTML.
- JavaScript Beautifier — Reformat minified JavaScript with two-space indentation.
- XML Formatter — Beautify XML with clean two-space indentation.
- SQL Formatter — Beautify SQL queries with keyword capitalization.
- CSS Beautifier — Reformat compressed CSS with clean two-space indentation.
- CSV Validator — Check that every row has the same number of columns.
- JSON Diff Checker — Compare two JSON documents and list every difference.
Keep exploring
Browse the full tools directory, filter by category, or read guides on the Text Tools Hub blog.