HTML Formatter
Paste HTML to format it with tidy indentation, then preview how it renders. Runs entirely locally.
Input
LocalOutput
—About HTML Formatter
The HTML Formatter re-indents messy or minified HTML into a tidy, readable structure and lets you preview how it renders. It suits developers cleaning up generated markup, inspecting a snippet, or making a template easier to edit.
Generated and minified HTML is painful to read. Formatting it locally gives you clean indentation and a render preview without pasting your markup into an external tool.
Step by step
- Paste the HTML you want to tidy into the input area.
- The formatter re-indents tags and nests them according to structure.
- Switch to the preview to see how the markup actually renders.
- Copy the formatted HTML or download it for your project.
What it offers
- Tidy HTML indentation
- Rendered preview
- Readable structure output
- Local-only formatting
Tips for best results
- Format before committing generated markup so diffs stay meaningful.
- Use the preview to catch unclosed tags that indentation alone might hide.
- For production, minify the formatted result rather than shipping the indented version.
Why people use it
Readable structure
Consistent indentation makes nesting and mismatched tags obvious.
Live preview
Confirm the markup renders as intended before using it.
Local processing
Your HTML is never uploaded.
Editor-friendly
Tidied output is far easier to maintain by hand.
Common questions
This runs entirely in your browser
No file or text you enter here is uploaded. Encoding and decoding happen on your device using native browser APIs — close the tab and nothing remains on a server.