HTML Formatter / Minifier
Format, beautify, or minify HTML markup.
Input
Drop file here or click to browse
Maximum 5 MB (.html,.htm,.svg,.txt)
Output
About the HTML Formatter / Minifier
Format HTML with correct indentation or minify it for production. Scraped pages, email templates, and generated markup often arrive as one enormous line; indenting them makes the document structure visible so you can actually find the element you are looking for.
How to use it
- 1 Paste your HTML markup into the input area.
- 2 Click Format to indent the element tree.
- 3 Click Minify to collapse whitespace for a smaller payload.
- 4 Copy the result or download it.
What it does
- Indentation that reflects the element hierarchy
- Minification that respects whitespace-sensitive elements
- Handles inline <script> and <style> blocks
- Preserves attributes and self-closing tags
Frequently asked questions
Is my HTML uploaded?
No. Every calculation happens locally in your browser using JavaScript. Nothing you paste is uploaded, logged, or stored on a server, which makes the tool safe to use with production data, credentials, and customer records.
Will minifying HTML break my layout?
It can if whitespace is doing visual work. Inline elements separated by a space render with a gap that disappears when the whitespace is collapsed, and content inside <pre> or <textarea> is whitespace-significant. Those cases are preserved here, but always compare the rendered result before shipping.
Does formatting change how the page renders?
Adding indentation inserts whitespace text nodes, which is normally invisible but can shift inline-block layouts by a few pixels. Use the formatter for reading and debugging; ship the minified version.
Can it fix invalid HTML?
It formats what you give it rather than repairing it. Unclosed tags and mismatched nesting will show up clearly in the indentation, which usually makes the problem obvious, but correcting the markup is up to you.