HTML ebook archive .htmlz
An ebook package containing HTML pages and related resources.
Server processing uses engines we host. Availability depends on the deployed engine and supported file variant.
HTMLZ file format guideHTMLZ to MOBI converter
Convert HTML ebook archive (.htmlz) to MOBI for free. Choose files, review the available settings and download your results. No account needed.
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Drag files here or choose them from your device.
Mobipocket ebook .mobi
An ebook format used by Mobipocket and older Kindle readers.
Server processing uses engines we host. Availability depends on the deployed engine and supported file variant.
MOBI file format guideHow to convert HTMLZ to MOBI
- Select HTMLZ files from your device or drag them into the converter.
- Check the MOBI output. Open conversion settings if you want to make adjustments.
- Convert, compare the original and result, then download your files.
Quality, compatibility and file limits
DRM-free books only. Layout, pagination and typography may change, especially from fixed-layout formats.
Processing uses your device when possible and our servers when required. Browser files are limited to 256 MB each; server conversions to 64 MB; browser spreadsheets to 32 MB. Previews show supported content and do not guarantee identical rendering in every application.