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💰捐贈
💰捐贈

HTML Formatter & Beautifier

Format, beautify, and minify HTML instantly. Paste minified HTML to get clean, indented markup — runs entirely in your browser.

Input
Output
About This Tool
The HTML Formatter & Beautifier is a free online tool that transforms compressed or poorly indented HTML into clean, readable markup with consistent indentation. It understands the difference between block-level and inline elements, keeping inline content like<strong>, <em>, and <a> on a single line while properly nesting block elements like <div>,<section>, and <ul>.
The minify mode strips comments and collapses whitespace for the smallest possible output. All processing runs in your browser — no HTML is ever sent to a server.
How to Use
  1. Paste your HTML content into the Input panel.
  2. Choose your preferred indentation (2 or 4 spaces).
  3. Click Fmt to format, or Min to minify.
  4. Copy the result with the Copy button.
Use Cases
Front-end developers use this to clean up HTML exported from design tools like Figma or Adobe XD. Web developers format email templates, CMS-generated markup, and legacy HTML files. The minify feature is ideal for reducing HTML file size in production builds when a build tool isn't available.
FAQ
  • Does it validate HTML? — The tool uses the browser's built-in HTML parser, which automatically corrects minor errors (like missing closing tags). It does not report validation errors explicitly, but the output shows the corrected structure.
  • Are void elements handled correctly? — Yes. Self-closing tags like<img>, <br>, and <input>are output without a closing tag, as per the HTML5 specification.
  • Is my data safe? — All processing is local in your browser. No HTML is ever sent to any server.