HTML Beautifier & Formatter Online
Clean up messy HTML instantly with this free beautifier. Proper indentation, consistent formatting, and readable structure — all processed client-side in your browser.
Code Minifier & Beautifier
Minify or beautify JavaScript, CSS, and HTML code instantly. No data leaves your browser.
About Code Minification & Beautification
Beautify reformats your code with proper indentation, line breaks, and spacing for maximum readability. Great for reading minified production code or cleaning up messy formatting.
Minify removes all unnecessary whitespace, comments, and formatting to produce the smallest possible output. Minified code loads faster and uses less bandwidth — essential for production deployments.
JavaScript: Handles string literals (single, double, template), comments (single-line and multi-line), regex literals, and all modern syntax. Preserves semicolons and statement structure.
CSS: Handles selectors, declarations, at-rules (@media, @keyframes), comments, and nested structures. Collapses whitespace around delimiters for maximum compression.
HTML: Handles all standard tags, void elements (br, img, input, etc.), comments, DOCTYPE declarations, and embedded script/style content. Preserves content within pre and textarea tags.
What is HTML beautification?
HTML beautification takes minified or poorly formatted HTML and applies consistent indentation, line breaks, and tag alignment to make it human-readable. This is the reverse of minification — it does not change how the HTML renders but makes the source code much easier to read, edit, and debug.
Common use cases
HTML beautification is essential when inspecting minified production pages, cleaning up generated markup from CMS tools, or reformatting code copied from browser DevTools. Developers also use beautifiers to enforce consistent formatting standards across teams or before committing HTML templates to version control.
Frequently Asked Questions
Does beautifying HTML affect how the page renders?
In most cases, no. Beautification adds whitespace between tags, which may introduce minor spacing in inline elements. For block-level elements, there is no visual difference.
Can I beautify HTML that contains embedded JavaScript or CSS?
Yes. The beautifier handles inline script and style blocks, formatting the HTML structure while preserving embedded code sections.