Convert HTMLZ to TCR Online — Free
Fast, free HTMLZ to TCR converter. No registration required.
2M+ Files Converted
Trusted by thousands of users
Secure Transfer
HTTPS encrypted uploads
Privacy First
Files auto-deleted after processing
No Registration
Start converting instantly
Works Everywhere
Any browser, any device
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 .tcr 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 TCR?
TCR is a text compression format originally developed for Psion handheld PDAs in the 1990s. It uses a simple dictionary-based compression scheme to store plain text content in extremely compact files, making it popular for distributing eBooks on early mobile devices with limited storage.
Format Details
- Full Name
- Psion eBook
- Extension
- .tcr
Key Features
- Psion PDA native
- Text compression
- Extremely compact
- Legacy format
HTMLZ vs TCR
| Feature | HTMLZ | TCR |
|---|---|---|
| Full Name | Compressed HTML eBook | Psion eBook |
| Extension | .htmlz | .tcr |
| Best For | Zipped HTML | Psion PDA native |