Free HTML Formatter & Beautifier that works offline
Turn compressed or uneven markup into readable HTML and keep unpublished templates in the browser.
What this html formatter & beautifier does
The formatter tokenizes comments, tags and text, applies nesting indentation, and preserves the contents of pre, textarea, script and style blocks as safely as possible. Minify mode removes unnecessary inter-tag whitespace.
How to use the HTML Formatter & Beautifier
- Paste or enter HTML markup.
- Adjust the available options for the result you need.
- Choose Format HTML and review the output before using it.
- Copy or download the result, then clear the page if the input was sensitive.
Common uses
- Preparing HTML source code for development and testing
- Inspecting copied data without sending it to a remote service
- Creating reusable examples for documentation or local projects
- Completing a browser-based workflow while offline
Private processing and offline access
This tool does not submit your input to a conversion server. Processing takes place inside the browser using local JavaScript and standard Web APIs. After the PWA has been installed or cached, the page and its core features remain available without an internet connection. Closing or clearing the page removes unsaved input; the tool does not create an account or cloud history.
Tips for accurate results
- Review generated output before deploying it to production.
- Keep a copy of important source data before transforming it.
- This tool runs locally, but your browser extensions and device security still matter.
Frequently asked questions
Does this tool upload my data?
No. HTML Formatter & Beautifier processes its input in the current browser.
Can it work offline?
Yes. After the PWA has cached this page and its supporting files, the core tool works without an internet connection.
Should I review the result?
Yes. Generated configuration and formatted code should be reviewed before it is used in a production system.