Unminify HTML online

Unminify html — also called html beautifier, html prettify, or html formatter — adds line breaks and indentation so minified html becomes readable again. The browser still parses the same structure; only whitespace changes.

Production sites ship minified html to save bytes. When you view source on a live site or open a cached document, you often see one long line. An html unminifier rebuilds structure so you can find tags, attributes, and nested sections quickly.

This is not decompilation. Comments removed during html minification are gone forever. Attribute order may differ from the original authoring file.

Unminify html is the right first step before code review, accessibility audits, or learning from third-party markup — not a substitute for original source files when you have them.

Paste minified html into the input panel or import a .html file. Formatted output appears live in the right panel with two-space indentation and newlines between tags.

The placeholder shows a compact sample as a ghost preview — paste your own minified html to replace it. The stats row shows how much larger formatted output becomes, which is normal on dense documents.

Copy or download formatted.html when ready. Edit the readable file, then run it through our HTML Minifier before shipping if size matters again.

For very large pasted files, give the browser a moment; beautification is synchronous but heavy strings can briefly block the main thread.

Copy markup from Chrome DevTools Elements or view-source, paste here, and search for the element behind a layout bug. Pretty html is far easier to navigate than a single line.

When comparing two versions of a template, unminify both exports and use your diff tool on the formatted output. Rendering stays identical, so visual diffs reflect real markup changes.

Vendor landing pages often arrive minified in zip downloads. Unminify html before grep-searching for data attributes or ARIA roles you need to override.

If output looks garbled, confirm the input is HTML and not JSON, CSS, or a JavaScript template mistaken for a document.

Prettier and IDE formatters need project config. This html formatter online works from a paste without setup — useful on machines where you cannot install tools.

Css unminify and unminify css refer to stylesheet formatters, not documents. Use our CSS Unminifier for .css content; use this page for markup and fragments you extract separately.

Javascript unminify tools operate on JS syntax. Do not paste HTML into a JS beautifier — angle brackets and custom elements confuse the wrong parser.

Terms like html online formatter, formatting html online, and html beautifier online describe the same beautify pass this page performs locally.

Edit-unminify-ship loop: unminify a hotfix snippet, change one block, minify on the HTML Minifier page, replace the file on your host.

Documentation: unminify a representative sample for internal wikis without exposing full production bundles.

Learning: students paste minified html from popular sites to study semantic structure — always respect licenses and terms when copying.

Keep authoritative sources in git; treat formatted output as a disposable view, not the canonical file.

Beautification runs locally. Copied production HTML from client sites stays on your machine. Clear panels on shared computers.

Pair with our HTML Minifier for the reverse pass. CSS Minifier handles stylesheets; JSON tools handle config — paste only plain HTML here.

For markup embedded inside JavaScript strings, extract the HTML portion first, then unminify html on this page.