Formatters
HTML Formatter
Paste HTML on the left, hit Run, copy stable indent so diffs stay small and reviews stay kind. No Node, no pip, no Docker for a five-minute job. That is the html formatter.
Drop a file on the left. Drafts stay in this browser. Shortcut: Ctrl or Cmd + Enter to run.
How this html formatter works
- Paste or drop a .html file into the input on the left.
- Flip options if you see them (comments, indent, case). Defaults are the safe ones.
- Hit Run, or Ctrl / Cmd + Enter. Leave “Process on server” off unless you mean it.
- Read the status line, then copy, download, or jump to a related tool.
What this html formatter is for
The file is already in front of you. You need to format it without opening a whole IDE profile. Paste, run, copy. Typical timing: every time a payload or query has to be read by a human — APIs, SQL, YAML, HTML emails.
You walk away with stable indent so diffs stay small and reviews stay kind.
What it will not pretend to be
This is not a linter. Format can hide problems that a validator would still catch. Whitespace is not always free in HTML. Space between inline tags can become a visible gap, and content inside <pre>, <textarea>, and <script> should not be smashed the same way as a <div>.
By default nothing leaves the tab. Tick “Process on server” only if you want to compare results or use gzip numbers that match the server library.
A practical way to use it
Drop a .html file onto the input or paste. Flip options if they are there. Run. Read the status line. Copy or download. Drafts stay on this device so a refresh does not punish you.
When you are done, hop a related tool instead of starting over: minify and beautify toss the file back and forth, format and validate often share a parser, convert wants valid input first.
The small print that saves a round-trip
Whitespace is not always free in HTML. Space between inline tags can become a visible gap, and content inside <pre>, <textarea>, and <script> should not be smashed the same way as a <div>.
You searched “html formatter online.” You got an editor, not a login wall. That is the deal.
Frequently asked questions
Is an HTML formatter different from a beautifier?
Same muscle: indent tags so the tree is obvious. People search both phrases. <nav><a href="/">Home</a></nav> becomes a small outline. You are formatting for git and for eyes, not for the browser.
Will it wrap attributes?
A simple formatter may keep attributes on the same tag. Prettier-style wrap is a project setting. If a tag is a mile long, break attributes by hand after the indent pass.
Example?
Before: <section class="hero"><h1>Hello</h1><p>Welcome.</p></section>. After: section, h1, and p stacked. Missing </section> gets easier to see.
Fun fact?
Fun fact: HTML formatters and browser “view source” still disagree with DevTools DOM view, because the parser already fixed your mistakes. Format source, not the live DOM, if you want the file you will save.
Should I format minified email HTML?
Yes to understand it. Then minify again before send if you care about bytes. Keep Outlook conditional comments intact either way.
Does formatting HTML change CSS matching?
Almost never for block layout. Watch inline gaps: a newline between <span>A</span> and <span>B</span> can become a space. Same story as beautify.
HTML format vs JSX format?
JSX is JavaScript with tags. Self-closing <Item /> matters. HTML formatters that emit <item></item> can annoy React. Use the JSX formatter for components.
When is format a bad idea?
Generated files you do not own, or diffs where whitespace is the whole PR. Format once, commit, stop fighting the file.