HTML Formatter

• 100% Free

  Core tools stay free with no paywall to unlock basics.

• No Registration Required

  Open a tool and start immediately - no account needed.

• Privacy First

  We avoid unnecessary collection and keep processing local when possible.

• Browser Processing

  Most tools run in your browser so your input never needs a server round-trip.

• Fast & Secure

  HTTPS everywhere with instant, client-side results for everyday tasks.

• Mobile Friendly

  Layouts and controls are built for phones, tablets, and desktops.

• Updated Regularly

  Tools and content are improved continuously as the platform grows.

Key Features

• Tag-Aware Indentation

  Nests elements based on real open and close tags rather than existing line breaks, so deeply nested markup stays readable at a glance.

• Void & Inline Element Awareness

  Recognizes self-closing tags like <img> and <br> so they never wait for a closing tag, and keeps text attached to inline tags such as <strong> and <span> instead of splitting them apart.

• Comment-Stripping Minify

  Collapses whitespace between tags and removes HTML comments to shrink markup before it ships to production or an email client.

• Structural Tips

  Flags unclosed or mismatched tags directly in the results panel so you can fix markup issues before they reach a browser.

How to Use

1. 1

   Paste your HTML

   Copy markup from a component, email template, CMS export, or a browser "View Page Source" panel.

2. 2

   Choose Format or Minify

   Format adds two-space indentation per nesting level; Minify strips comments and collapses whitespace between tags.

3. 3

   Review the tips panel

   Unclosed or mismatched tags are called out beneath the result so you can spot structural issues before shipping.

4. 4

   Copy or download the result

   Grab the output from the clipboard button or save it as a .html file for your project or ticket.

Use Cases

• Auditing scraped or exported markup

  Web scrapers, CMS exports, and "Save As HTML" browser output often collapse everything onto one line - reformat it to actually read the DOM structure.

• Cleaning up email template HTML

  Marketing and transactional email HTML is frequently minified by ESPs; expand it to review table-based layouts before editing a campaign.

• Preparing snippets for documentation

  Format ugly HTML pulled from forum answers or legacy codebases before pasting it into a blog post, README, or internal wiki.

• Shrinking static pages before deployment

  Minify hand-written HTML partials to reduce payload size for static sites and landing pages that skip a bundler.

Examples

<div class="card"><h2>Plan</h2><p>Billed monthly</p></div>

<div class="card">
  <h2>
    Plan
  </h2>
  <p>
    Billed monthly
  </p>
</div>

<!-- promo banner -->
<div class="banner">
  <p>Sale ends soon</p>
</div>

<div class="banner"><p>Sale ends soon</p></div>

Benefits

• ✓Turns single-line, scraped, or minified markup into readable, indented HTML in seconds
• ✓Shrinks HTML payloads by removing comments and redundant whitespace before deployment
• ✓Surfaces unclosed or mismatched tags that are easy to miss when scanning raw markup
• ✓Speeds up code review by making nested div, table, and list structures easy to scan
• ✓Runs entirely in your browser, so proprietary templates and internal tools never leave your device

Best Practices

• Run Format first on unfamiliar markup so structural tips can surface unclosed or mismatched tags before you minify.
• Keep a formatted copy of email templates in version control and only minify the copy you send to your ESP.
• Double-check that void elements like <img>, <br>, and <input> are not accidentally written with a matching closing tag.
• Re-test minified HTML in a real browser afterward - collapsing whitespace can occasionally shift inline-element spacing.

Common Mistakes

• Minifying HTML before reviewing the structural tips, which hides unclosed tags inside the compacted output.
• Assuming the formatter validates the full HTML5 specification - it checks tag balance and nesting, not attribute rules or ARIA correctness.
• Pasting a bare fragment without a root wrapper and expecting output identical to a full document with <html> and <body>.

Privacy Notice

All tokenizing, formatting, and minifying happens locally in your browser using JavaScript - your markup is never uploaded, logged, or transmitted to ToolMint servers. That makes it safe to format proprietary templates, internal admin panels, or client work without a privacy review.

About This Tool

Frequently Asked Questions

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