CBZ to EPUB Converter
A CBZ is just a ZIP full of page images, which is exactly why generic file converters handle it badly: they stuff raw images into a reflowable book and the panels come out tiny, blurry or out of order. MangaConverter is built for comics: it produces fixed-layout EPUBs where every page fills the screen, pages stay in order, and images are processed for e-ink.
Upload a CBZ (or CBR, CB7, ZIP, RAR, 7Z, PDF), pick plain EPUB or an exact device preset, and download a file your reader treats like a real book.
How to convert CBZ to EPUB
- Drop your CBZ file Drag the archive onto the dropzone, multiple files queue and convert in sequence. Nested archives (a CBZ inside a ZIP) are unwrapped automatically.
- Choose EPUB or a device preset The ePub preset keeps original page dimensions. A device preset (any Kindle, Kobo, reMarkable and more) resizes pages to that screen and optimizes contrast for it.
- Preview the result The studio renders each processed page before you commit, check spreads, borders and reading direction, then adjust with live options.
- Convert and download Click Convert, download the EPUB, and load it onto any reader or app. Files auto-delete from our servers after 24 hours.
Fixed layout, on purpose
Comic pages are artwork, reflowing them destroys the layout. The EPUBs built here are fixed-layout: one page image per screen, exactly as drawn, with optional two-page landscape spreads.
Target device known?
If the EPUB is destined for one specific reader, pick its device preset instead of plain EPUB, pages get resized to the exact screen (e.g. 1236 × 1648 for a Paperwhite 5) and look sharper for it.
Conversion runs on Kindle Comic Converter (KCC), the open-source engine comic readers have trusted for a decade, hosted for you, so there is no Python, no CLI, nothing to install.
Frequently asked questions
Will the EPUB keep the page order and quality?
Yes. Pages keep their archive order, and images are processed, not just re-wrapped: resized to the target, gamma-corrected for e-ink, optionally upscaled. Nothing is cropped unless you enable border trimming.
What is the difference between CBZ and EPUB anyway?
CBZ is a bare zip of images with no metadata or layout; EPUB is a real book format with page structure, reading direction and library metadata. Readers and apps treat an EPUB properly, progress, covers, chapters.
Can I convert many CBZ files at once?
Yes, drop a whole batch and they queue up. Each file converts on its own, so one bad archive never blocks the rest.
Does it work with comics as well as manga?
Absolutely. Left-to-right Western comics are the default; manga mode switches to right-to-left when you need it. Webtoon mode handles vertical strips.
Is there a file size limit?
The free tier accepts typical single volumes comfortably. Very large omnibus files may exceed the page cap, split them first, or convert volume by volume.