Convert CBZ to EPUB Online Free
Convert Comic Book ZIP (CBZ) files to EPUB format. Powered by Calibre for reliable conversion of comic book image archives into standard ebook files.
ChangeThisFile converts your CBZ comic book archive to EPUB using Calibre on our secure servers. CBZ files contain sequential comic page images in a ZIP archive. Converting to EPUB packages those images into a standard ebook format compatible with most e-readers and ebook apps. Your file is encrypted during transfer and auto-deleted after conversion.
Convert Comic Book ZIP to EPUB
Drop your Comic Book ZIP file here to convert it instantly
Drag & drop your .cbz file here, or click to browse
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Comic Book ZIP vs EPUB: Format Comparison
Key differences between the two formats
| Feature | CBZ (Comic Book ZIP) | EPUB |
|---|---|---|
| Container | ZIP archive of image files | ZIP-based ebook container with XML metadata |
| Content | Sequential JPG/PNG/WebP comic pages | Images or text in HTML pages |
| Reader Support | Comic book reader apps | Most modern e-readers and ebook apps |
| Metadata | Optional ComicInfo.xml | Built-in title, author, cover, TOC support |
| Standards Body | De facto comic standard | IDPF/W3C open standard |
| DRM Support | No DRM | Supports EPUB DRM |
| File Inspection | Any ZIP utility can open it | Any ZIP utility can open it (also ZIP-based) |
When to Convert
Common scenarios where this conversion is useful
Read Comics on Kobo, PocketBook, or Other E-Readers
Most dedicated e-readers support EPUB but not CBZ out of the box. Converting your CBZ collection to EPUB lets you read digital comics on Kobo, PocketBook, Onyx Boox, and other EPUB-capable devices without extra apps.
Catalog Comics in an Ebook Library Manager
EPUB files work seamlessly with library managers like Calibre. Converting CBZ comics to EPUB lets you add metadata (title, author, series), cover art, and organize your comic collection alongside your ebook library.
Import Comics into Apple Books or Google Play Books
Apple Books and Google Play Books both accept EPUB files. Converting your CBZ comics to EPUB lets you import them into these apps for reading on iPhone, iPad, or Android without needing a separate comic reading app.
How to Convert Comic Book ZIP to EPUB
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1
Upload your CBZ file
Click the upload area or drag and drop your .cbz comic book archive. Files up to 50MB are supported.
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2
Start the conversion
Click Convert. ChangeThisFile sends your file to our server where Calibre extracts the comic pages from the ZIP archive and packages them into an EPUB file.
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3
Download your EPUB file
Once conversion is complete, download your .epub file. The original file is automatically deleted from our servers.
Frequently Asked Questions
A CBZ (Comic Book ZIP) file is a ZIP archive containing sequential image files — typically JPG or PNG — representing the pages of a comic book or manga. Comic reader apps display these images in order for a digital reading experience.
Calibre extracts the image files from the ZIP archive and wraps each image in an EPUB page. The result is a fixed-layout EPUB where each page contains one comic book image, maintaining the original reading order.
The images are embedded in the EPUB without re-encoding. Image quality is preserved identically to the source CBZ. The visual appearance of your comic pages will not change.
Newer Kindles (with firmware 5.16.6+) support EPUB natively. For older Kindles, convert the EPUB further to MOBI or AZW3. ChangeThisFile offers both conversions.
Calibre generates a basic EPUB structure with navigation, but comic EPUBs typically do not have a chapter-based table of contents. The EPUB will have page navigation appropriate for sequential image content.
Calibre can set the reading direction metadata in the EPUB output. However, the default may be left-to-right. For right-to-left manga, you may need to configure reading direction in Calibre's desktop settings for custom conversions.
No. Your file is automatically deleted from our servers immediately after conversion. We do not retain any comic book content or personal data.
ChangeThisFile supports files up to 50MB. High-resolution comic archives can exceed this. If needed, split the comic into smaller volumes before converting.
Yes. ChangeThisFile supports both CBR to EPUB and CBZ to EPUB conversion. CBR uses RAR compression while CBZ uses ZIP, but the comic page content and conversion results are equivalent.
EPUB adds an XML container structure, OPF metadata files, and navigation documents around the images. The images themselves are the same size, but the structural overhead slightly increases the total EPUB file size.
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