How to convert HTML to HTMLZ
- Add your .HTML file - drop it in the box above or click to browse.
- Convert it to .HTMLZ in a few seconds.
- Download your new .HTMLZ file.
What to expect
- HTMLZ is a ZIP wrapper around one HTML file plus its images and CSS; it is packaging, not a new document format.
- Calibre consolidates the page into a single normalized HTML file, which can drop scripting and interactive behavior.
- Resources referenced from external servers are not guaranteed to be bundled into the archive.
Frequently asked questions
What exactly does HTMLZ contain after conversion?
HTMLZ is a ZIP archive that bundles the HTML together with its images and stylesheet into one file.
calibre normalizes the markup into a single document and packages the resources alongside it.Why convert HTML to HTMLZ?
It collects a page and its separate asset files into one portable, self-contained package, which is easier to store or hand off than a loose HTML file plus a folder of images and CSS.
How do I open an HTMLZ file?
Calibre reads HTMLZ directly. Because it is just a ZIP, it can also be unpacked with any archive tool to recover the plain HTML and asset files inside.
Is any content lost in the conversion?
The text, structure, and images are preserved, but Calibre rewrites the markup into a single normalized HTML document, so JavaScript and complex or externally hosted styling may not behave as on the original page.
