Free Online CBZ to EPUB Converter

Convert CBZ to EPUB online for free.

Drop CBZ files here

or click anywhere in this box to choose files

Max file size 10MB. Sign up for more.

Selected Files

File Name	Size	Convert To

Convert all to:

Conversion Complete

File Name	File Size	Download

Convert More Files Buy Me a Coffee Download All (ZIP)

About the output format

When EPUB is the right output

EPUB is the open ebook standard — reflows text, supports tables of contents and metadata, works on every e-reader except Kindle (which uses MOBI/AZW3 natively but converts EPUB on upload). Convert to EPUB when publishing to Apple Books, Kobo, Google Play Books, or shipping direct-to-reader PDFs / DOCX manuscripts.

About the CBZ Format

CBZ (Comic Book ZIP) is a digital comic book archive format that stores sequential page images in a standard ZIP-compressed file. Like its RAR-based counterpart CBR, each comic page is a separate image file displayed in filename order by comic reader applications. CBZ has become the preferred comic archive format due to ZIP's universal support — any device or operating system can extract CBZ files without proprietary decompression software.

CBZ is supported by virtually every comic reading application across all platforms, including CDisplayEx and ComicRack on desktop, Chunky on iPad, and Perfect Viewer on Android. Many digital comic publishers and libraries distribute comics in CBZ format for maximum compatibility. Converting CBZ to PDF enables reading on any device with a PDF viewer and is ideal for printing. Converting to EPUB allows reading comics on eReaders that support fixed-layout EPUB content. All conversions preserve original image quality and page ordering.

CBZ to EPUB FAQ

Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert CBZ files to EPUB.

How do I convert CBZ to EPUB online?

Upload your CBZ file to iFormat and click Convert. It's processed and returned as EPUB in seconds — free, no watermark, and no account required.

Can I convert CBZ to EPUB without losing quality?

The converter preserves as much of the source as the EPUB format allows. Where EPUB is lossless nothing is lost; where it's lossy the default settings keep the result faithful to your CBZ original.

Can I convert CBZ to EPUB without downloading software?

Yes. iFormat works entirely in your browser on any device — Windows, Mac, Linux, iPhone, or Android. No desktop software, no app install, and no sign-up required.

Why convert CBZ to EPUB?

CBZ is the CBZ format suited to its intended use. EPUB is a reflowable ebook format best for Kobo, Apple Books, and Nook. Convert when your device, app, or platform needs EPUB.

Is CBZ to EPUB conversion free?

Yes. Converting CBZ to EPUB is free with no watermark and no sign-up. Paid plans only raise file-size limits and batch sizes for heavier workloads.

Is it safe to convert CBZ to EPUB online?

Yes. Uploads travel over an encrypted HTTPS connection, conversion runs on an isolated worker, and both your CBZ source and the EPUB result are automatically deleted from our servers within a short window. Nothing is stored, shared, or used for training.

Is there a file size limit for CBZ to EPUB conversion?

The free plan supports files up to 50 MB, which covers the large majority of CBZ files. For longer or higher-resolution files, Starter raises the limit to 100 MB, Plus to 1 GB, and Pro to 5 GB.

Related Guides for Free Online CBZ to EPUB Converter

Helpful articles and explainers connected to this tool.

How to Convert Kindle Books to EPUB — DRM-Free Guide

Convert Kindle books to EPUB for reading on Kobo, Apple Books, or any e-reader. Covers DRM-free books, format differences, and conversion tools.

Ebook Formats Explained — EPUB, MOBI, PDF, AZW3, KFX & More

A complete guide to ebook formats. Compare EPUB, MOBI, AZW3, PDF, and KFX by reader support, features, and when to use each.

How to Open EPUB Files Without a Kindle — Free Readers for Every Device

Got an EPUB file and not sure how to open it? Here are the best free EPUB readers for Windows, Mac, iPhone, iPad, Android — and how to read EPUBs on a Kindle.

EPUB vs PDF vs MOBI — Which Ebook Format Is Best for Reading?

EPUB, PDF, and MOBI each handle ebooks differently. This guide compares reflowable text, device compatibility, DRM, and reading experience to help you pick the right format.