Converter · SOTA DOMParser · HTML5-aware

HTML Formatter & Beautifier

Format or minify HTML with DOMParser-based HTML5 parsing. Pretty-print with configurable indent, preserve whitespace in <pre>/<textarea>/<script>, correct self-closing for void elements.

Prettify Minify Indent:

Input HTML

Output

How to Use HTML Formatter in 3 Steps

Configure. Paste HTML into the input. DOMParser validates and structures the document tree.
Process. Pick mode: Prettify (indent nested, one tag per line) or Minify (single line, whitespace-stripped).
Export. Copy the output. <pre>, <textarea>, <script>, and <style> contents are preserved exactly to avoid breaking code or layout.

Why HTML Formatter on Pixlane

HTML formatting is essential for reviewing template output, normalizing indent across a codebase, or minifying for production. Pixlane uses the browser's native DOMParser, the same engine that parses live web pages, ensuring HTML5 compliance, correct void-element handling, and whitespace preservation in sensitive elements.

Native DOMParser: Uses the browser's HTML5 parsing engine, same as live pages. No regex hacks, no edge-case failures with malformed markup.
Void-Element Correct: <img>, <br>, <input>, and other void elements are emitted as self-closing per HTML5 spec. Non-void elements always get closing tags.
Preserves Sensitive Content: <pre>, <code>, <textarea>, <script>, <style> whitespace is preserved byte-for-byte, no broken code blocks or layout shifts.
Bidirectional: Same tool prettifies and minifies. Minification strips inter-tag whitespace without touching inline text.

Frequently Asked Questions

Does it handle malformed HTML?

Yes. DOMParser handles what browsers handle. Missing closing tags, misplaced elements, and legacy quirks are corrected to produce a well-formed output. Truly broken markup (e.g., binary data) may produce empty output.

Does it preserve my <script> and <style> tags?

Yes. Content inside <script>, <style>, <pre>, <code>, and <textarea> is preserved exactly. Only the surrounding HTML structure is reformatted.

Is my HTML private?

Yes. All parsing happens via DOMParser in your browser. Your markup, which may contain proprietary templates, never leaves your device.

Is this tool free?

Yes. HTML Formatter on Pixlane currently requires no signup for core use; tool-specific limits may apply.

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