Developer Tools
Find clear answers to common questions about HTML Prettify, including usage, output, and common issues.
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.
HTML Prettify is built for development, debugging, formatting, and quick technical checks directly in the browser.
It formats HTML with indentation and line breaks to make the markup easier to read.
Yes. Both names usually mean formatting HTML into a cleaner readable layout.
It should only change formatting and whitespace, not the intended markup structure.
HTML Prettify adds readable spacing and indentation. HTML Minify removes unnecessary whitespace.
Yes. That is one of the most useful cases for this tool.
HTML Prettify is built for development, debugging, formatting, and quick technical checks directly in the browser.
Start by checking the input format, removing accidental spaces or unsupported characters, and comparing your input against the example pattern on the page.
Fix: Check whether every opening tag has a matching closing tag before formatting.
Fix: Use it mainly for readability. It formats structure, but it is not a full validator.
Fix: Review framework placeholders or server-side template syntax after formatting.
If you want to see realistic input and output patterns, open the examples page. If you want step-by-step usage guidance, open the guide page.
Open the main HTML Prettify page to test your own input and generate a live result.