Developer Tools

HTML Prettify Guide

Learn when to use HTML Prettify, how to use it correctly, and how to avoid common mistakes.

What this guide covers

Use this HTML Prettify tool to format raw or minified HTML into a readable structure. It is useful for inspecting copied markup, debugging templates, cleaning generated HTML, reviewing nested elements, and making front-end code easier to scan before editing or sharing.

This guide explains when to use HTML Prettify, how to get a cleaner result, and which mistakes to avoid before moving on to related tools or the main tool page.

Why use HTML Prettify

Turn minified or messy HTML into readable markup
Inspect nested elements faster during debugging
Clean copied HTML before editing templates or components
Make generated markup easier to review and share
Work in the browser without opening an editor

How to use HTML Prettify

Paste HTML into the input box
Click Run Tool to format the markup
Review the indented output with line breaks
Check the nested structure and tags more easily
Copy the formatted HTML for editing, debugging, or documentation

Best use cases

Reading minified HTML from browser tools
Cleaning copied template markup
Reviewing generated HTML before editing
Preparing readable snippets for documentation
Debugging nested front-end markup

Common mistakes

Pasting HTML fragments with broken tags

Fix: Check whether every opening tag has a matching closing tag before formatting.

Expecting the tool to validate every HTML rule

Fix: Use it mainly for readability. It formats structure, but it is not a full validator.

Formatting template syntax mixed into HTML

Fix: Review framework placeholders or server-side template syntax after formatting.

Use the tool

Ready to run HTML Prettify? Open the main tool page to enter your input, generate the result, and copy or download the output.

Open HTML Prettify