HTML Formatter
CodeFormat and minify HTML with configurable indentation
Paste single-line or minified HTML and get it reformatted with proper indentation for debugging, with a configurable indent size (2 or 4 spaces) to match your project's existing style, or run it the other direction and strip whitespace and comments before shipping to production to shave a few KB off page weight. It reformats structure but doesn't perform full HTML5 spec validation, so a strict compliance check still needs the W3C validator or a build-pipeline linter. The parser is tolerant, similar to what browsers use internally, so it does its best with malformed markup, but badly mismatched tags can produce output that doesn't match your intent, so it's worth fixing structural errors first if the result looks off. Embedded `<script>` and `<style>` content is preserved as-is rather than reformatted, and minification is meant to be safe, though whitespace-sensitive edge cases like `<pre>` blocks are worth spot-checking.
How to use HTML Formatter
- 1.Paste minified or single-line HTML to get it reformatted with proper indentation for readability during debugging.
- 2.Use minify mode to strip whitespace and comments before shipping HTML to production to shave a few KB off page weight.
- 3.Set a custom indent size (2 or 4 spaces) to match your project's existing code style before pasting formatted output back into your editor.
Frequently asked questions
Use via API, SDK, or MCP
Installnpm install @utilix-tech/sdkUsageimport { code } from '@utilix-tech/sdk'
const formatted = code.formatHtml('<div><p>Hello <strong>world</strong></p></div>')
console.log(formatted.output)Runs locally · no API key · no rate limits · Node.js SDK docs →