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Page Utils

HTML Formatter

HTML Formatter pretty-prints or minifies HTML in your browser. Paste a document or fragment, format it locally with a client-side HTML beautifier (Prettier HTML path or equivalent), then copy two-space indented or compact output. Nothing is uploaded, stored in localStorage, or sent to a remote formatter API. Broken markup that the formatter cannot parse is rejected next to the input rather than silently mangled. This page does not convert HTML to Markdown, does not encode entities as its primary job, and does not execute scripts.

Paste an HTML document or fragment and format it locally — pretty-print with consistent indentation for reading and review, or minify to a compact line. Closing the tab drops the workspace; we do not write it to localStorage or send it to a formatter API. This page is an HTML beautifier / pretty-printer for markup you already have, not a Markdown converter and not a live browser inspector.

Formatting runs in the browser with a client-side HTML formatter (Prettier standalone + HTML plugin, or the same class of local library CoS resolves from npm at install — prettier is already a dependency for CSS Formatter). If the text cannot be parsed as HTML, the page shows an error next to the input instead of guessing at a fix. Tags and text are preserved as written; this page reflows whitespace and indentation, it does not rewrite your content, fetch remote assets, or execute scripts.

HTML workspace

Pretty

Paste an HTML document or fragment. Whitespace and indentation only — scripts are not executed and remote assets are not fetched. Nothing is uploaded.

Output

Whitespace formatter only — does not convert Markdown, encode entities as the primary job, execute scripts, or fetch remote assets. Closing the tab drops the workspace.

How does the HTML Formatter work?

  1. 1. Paste HTML

    Drop in a document or fragment. Load example fills a tiny fictional demo page.

  2. 2. Format locally

    The browser runs a client-side HTML beautifier (Prettier HTML path or equivalent) in this tab. Nothing is uploaded and no remote resources are fetched.

  3. 3. Pretty-print or minify

    Choose indented output for reading and review, or a compact form for pasting into a tight field. Tags and text stay as written; only whitespace and indentation change.

  4. 4. Copy the result

    Copy the formatted HTML. Closing the tab drops the workspace. Need Markdown conversion, entity encode, or CSS instead? Use HTML to Markdown, HTML Encode, or CSS Formatter on this site.

Questions about HTML Formatter

What does this HTML formatter do?
It pretty-prints (beautifies) or minifies HTML in your browser. Paste a document or fragment, and it reformats whitespace and indentation so markup is easy to read — or collapses it for a compact paste. It is a local HTML beautifier, not a Markdown converter and not a live DevTools inspector.
Does it upload my HTML?
No. Formatting runs entirely in this tab. There is no account, no server-side formatter, and no file upload. The text you paste stays here until you clear it or close the page. We do not write it to localStorage. That is the same privacy rule as CSS Formatter, XML Formatter, SQL Formatter, and JSON Formatter on this hub.
Why is there no /html-beautifier/ URL?
One canonical URL: /developer/html-formatter/. The page name matches the Developer formatter family. Queries like "html beautifier", "format html", and "online html formatter" can land here; we do not publish a second stub slug.
What happens if my HTML is invalid?
You get a short error next to the input and the output stays empty. The page does not invent missing closing tags. Fix the markup in an editor and paste again.
How is this different from HTML to Markdown, Markdown to HTML, or HTML Encode?
HTML to Markdown and Markdown to HTML convert between formats. HTML Encode escapes or unescapes entities. This page only pretty-prints or minifies HTML whitespace. They share the local-only privacy rule but solve different jobs.
Does it run scripts or fetch remote assets?
No. The formatter never executes `<script>`, never loads images or stylesheets from your markup, and never follows links. It only reflows text in this tab.

What else can I open?

These tools run in your browser. Page Utils does not store, upload, or write to localStorage the keys, tokens, or text you paste. Results are a convenience aid, not legal, tax, or security advice.