HTML Beautifier
What the HTML Beautifier does
The HTML Beautifier reformats minified or messy HTML into properly indented, readable markup, making it far easier to read, edit, or debug.
How to use it
- Paste your HTML into the box.
- Click Beautify HTML.
- Click Copy formatted HTML to copy the readable output.
Common uses
- Making minified page source readable when inspecting a website's structure.
- Cleaning up HTML exported from a page builder or CMS before editing it by hand.
- Reformatting HTML pasted from a chat or document that lost its indentation.
- Preparing HTML for a code review or documentation example.
- Debugging nested tag structure that's hard to follow when unformatted.
Good to know
Beautifying reveals the actual tag nesting structure, which is often the fastest way to spot an unclosed tag or mismatched element that's causing a rendering bug — indentation that suddenly looks wrong at one point in the output is usually pointing directly at the broken tag.
Well-indented HTML does more than look nice — it makes the actual document structure visually obvious, which is often the fastest way to spot a genuine bug like a
that was never closed, causing everything after it to nest incorrectly. Many HTML validation issues that look mysterious in minified or poorly formatted markup become immediately obvious once proper indentation reveals where the nesting actually breaks.
Frequently asked questions
No, it only reformats indentation for readability — use a validator separately if you need to check for markup errors.