Developer Tools

HTML Formatter & Minifier

Beautify or minify HTML with 2-space, 4-space, or tab indentation. Paste your code and get clean, formatted output instantly — no signup.

Beautify & Minify
2 / 4 Spaces / Tab
Size Stats
Browser-only

Indentation

HTML input

HTML formatter and minifier

Beautification adds indentation and line breaks so nested markup is easier to review. Minification removes comments and unnecessary whitespace to reduce transfer size.

Beautify versus minify

Mode	Preserves	Use
Beautify	Meaning and readable structure	Development and review
Minify	Markup semantics, not comments	Production delivery

<main>
  <h1>Readable markup</h1>
  <p>Indentation exposes nesting.</p>
</main>

The formatter recognizes common inline elements and void elements such as img, br, and input. It is a presentation formatter, not a complete HTML validator; use a standards validator for conformance checks.

Workflow

Paste markup, choose Beautify or Minify, select two spaces, four spaces, or tabs, and copy the result. All processing occurs locally.

Frequently Asked Questions

What is HTML formatting?: HTML formatting (beautification) adds consistent indentation and line breaks to make raw or minified HTML code human-readable.
Does this validate my HTML?: No. It formats HTML text but does not guarantee valid tag pairing, nesting, or W3C specification compliance. Use a dedicated HTML validator for conformance checks.
Can it minify HTML too?: Yes. Switch to Minify mode to remove comments and unnecessary whitespace, which can reduce markup size for production delivery.
How do I format HTML online?: Paste HTML, choose Beautify or Minify, select two spaces, four spaces, or tabs for beautification, then click Process HTML and copy or download the result.
Is my HTML sent to a server?: All formatting runs entirely in your browser using JavaScript. Your code is not uploaded to a server.
What does the HTML formatter show?: The result reports input and output character counts and, when output is available, the number of output lines.

Disclaimer

This tool is provided for general informational and utility purposes only. Results may be inaccurate, incomplete, outdated, or contain errors. Always verify results before relying on or using them.

Some tools may use AI, automated processing, third-party services, or server-side processing. Do not rely on these tools as a substitute for professional advice.

Use at your own risk. BestToolOnline makes no guarantees regarding the accuracy, reliability, completeness, availability, or suitability of results, to the maximum extent permitted by applicable law.

See our Terms of Service and Privacy Policy for complete details.

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HTML formatter and minifier

Beautification adds indentation and line breaks so nested markup is easier to review. Minification removes comments and unnecessary whitespace to reduce transfer size.

Beautify versus minify

Mode

Preserves

Use

Beautify

Meaning and readable structure

Development and review

Minify

Markup semantics, not comments

Production delivery

<main> <h1>Readable markup</h1> <p>Indentation exposes nesting.</p> </main>

Workflow

Paste markup, choose Beautify or Minify, select two spaces, four spaces, or tabs, and copy the result. All processing occurs locally.

Frequently Asked Questions

What is HTML formatting?

HTML formatting (beautification) adds consistent indentation and line breaks to make raw or minified HTML code human-readable.

Does this validate my HTML?

No. It formats HTML text but does not guarantee valid tag pairing, nesting, or W3C specification compliance. Use a dedicated HTML validator for conformance checks.

Can it minify HTML too?

Yes. Switch to Minify mode to remove comments and unnecessary whitespace, which can reduce markup size for production delivery.

How do I format HTML online?

Paste HTML, choose Beautify or Minify, select two spaces, four spaces, or tabs for beautification, then click Process HTML and copy or download the result.

Is my HTML sent to a server?

All formatting runs entirely in your browser using JavaScript. Your code is not uploaded to a server.

What does the HTML formatter show?

The result reports input and output character counts and, when output is available, the number of output lines.

Disclaimer

Some tools may use AI, automated processing, third-party services, or server-side processing. Do not rely on these tools as a substitute for professional advice.