Convert HTMLZ to PRC Online — Free
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Upload your .htmlz file by dragging it into the upload area or clicking to browse.
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Click Convert and download your .prc 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 PRC?
PRC is an eBook format originating from Palm OS devices and later adopted by Mobipocket. It was the standard format for early Kindle devices before Amazon transitioned to AZW and KF8.
Format Details
- Full Name
- Palm Resource Compiler / Mobipocket
- Extension
- .prc
Key Features
- Palm OS compatible
- Early Kindle support
- Mobipocket based
- Legacy eBook
HTMLZ vs PRC
| Feature | HTMLZ | PRC |
|---|---|---|
| Full Name | Compressed HTML eBook | Palm Resource Compiler / Mobipocket |
| Extension | .htmlz | .prc |
| Best For | Zipped HTML | Palm OS compatible |