Convert HTMLZ to MOBI Online — Free
Fast, free HTMLZ to MOBI converter. No registration required.
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How to Convert
Upload your .htmlz file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .mobi file when it's ready.
What is HTMLZ?
HTMLZ is a zipped HTML eBook format supported by Calibre. It bundles an HTML file with images and CSS into a single ZIP archive, providing a simple portable eBook format that preserves web formatting.
Format Details
- Full Name
- Compressed HTML eBook
- Extension
- .htmlz
Key Features
- Zipped HTML
- Calibre native
- CSS support
- Portable
What is MOBI?
MOBI is an ebook format used by Amazon Kindle devices. While Amazon now prefers EPUB, MOBI remains compatible with older Kindle models.
Format Details
- Full Name
- Mobipocket eBook
- Extension
- .mobi
Key Features
- Kindle compatible
- DRM support
- Ebook standard
- Amazon format
HTMLZ vs MOBI
| Feature | HTMLZ | MOBI |
|---|---|---|
| Full Name | Compressed HTML eBook | Mobipocket eBook |
| Extension | .htmlz | .mobi |
| Best For | Zipped HTML | Kindle compatible |