CBZ to EPUB

CBZ to EPUB converter: read comics in your ebook app

To convert CBZ to EPUB, drop the .cbz comic in the box and download an EPUB with one page per screen, ready for Apple Books, Kobo, Google Play Books or any EPUB reader.

Convert a CBZ to EPUB

  • No sign-up
  • Deleted within an hour
  • Opens in any reading app

Free: 10 files a day. Only convert books you have the right to convert. DRM-protected books, such as most store-bought Kindle books, can't be converted.

victoria_regia_1872.epub, page 1 epubwise
The whole first page in epubwise's file, the same size and shape as the scan
The first picture from each EPUB, drawn to scale, then its engraving at the scan's full size. Calibre's default keeps it 584 by 754 pixels; the scan and ours are 1400 by 2384. Real pictures from the files, unedited.

Why put a comic in an EPUB

Most people already have an ebook app on their phone or e-reader, and few have a comic reader. Turned into an EPUB, a CBZ lands in the same library as your other books, syncs your place the same way, and opens in apps such as Apple Books and Google Play Books, which don't read comic archives.

Unlike text, comic pages can't reflow: each page stays a picture, fitted to the screen. That suits tablets and large e-readers best; on a small phone, zoom works as it does for any image.

What you get

  1. Original art

    Pages keep their colours and size; nothing is turned grey or trimmed.

  2. Whole spreads

    Double-page spreads stay in one piece.

  3. Page by page

    Each page gets its own entry in the contents, so you can jump straight to it.

How it compares: 4 CBZ to EPUB converters tested

Tested 4 November 2026. Two public-domain scans from archive.org (De Victoria Regia, 1872, 41 pages, 15 MB, and a 1922 yearbook, 162 pages, 77 MB) went through each converter's free tier with default settings and no account. One script compared every EPUB with the original pictures. FreeConvert has no CBZ to EPUB option.

ConverterPagesPictures at full size Page shapeColour kept (yearbook) File size (the two comics)
epubwise Calibre 9.17, comic processing off allyesthe comic's ownyes14.7 MB / 77.3 MB
Calibre (default settings) Calibre 9.13, the desktop program allnostretchedno11.5 MB / 50.3 MB
AnyConv Calibre 4.3 failed on the yearbooknostretchedn/a9.6 MB / failed
CloudConvert Calibre 8.5 allnostretchedyes11.7 MB / 26.3 MB

What the numbers say. All four run Calibre. Its comic settings are made for e-ink screens: they shrink every picture and stretch it out of shape, and on its own Calibre also turns the pages grey. AnyConv stopped with an error on the yearbook. epubwise turns that processing off, so the art keeps the size, shape and colours it was scanned in. Ours is EPUB 3, the others EPUB 2, and every file passes EPUBCheck, the official validator.

Where others did better: the shrunken EPUBs are much smaller, so they take less room on a phone or e-reader. CloudConvert kept the yearbook's colour at about a third of our file size. MConverter, which ranks in Google's top 5 for CBZ to EPUB, matched us on the pictures in both books: every page at full size, in shape and in colour. Its files fail EPUBCheck, though (82 and 324 errors against our none), and they name the book "in" by "Unknown".

Limits

Only CBZ (zip) archives are supported, not CBR (RAR). For printing or sharing as one file, use CBZ to PDF. Reading on a Kindle? The EPUB can go through Send to Kindle like any other; here are the steps. Calibre, the free ebook program, does the conversion on our server, and the file is deleted within an hour.

Questions

Will a CBZ EPUB work on a Kindle?

Yes, through Send to Kindle like any EPUB, though image-only books are best on a large-screen Kindle.

Can I read manga right to left?

The pages are kept in file order. Most reading apps let you turn pages either way.