articleMay 24, 2026

Comic File Formats Explained: ZIP, CBZ, and CBR

Confused by CBZ and CBR files? We explain how comic book archives work and how you can translate them.

If you read digital comics or manga, you've undoubtedly encountered files ending in .cbz or .cbr. But what exactly are these files, and how do you work with them?

What are CBZ and CBR?

The secret behind these formats is astonishingly simple: they are just standard archive files that have been renamed!

  • CBZ (Comic Book Zip): This is literally just a .zip file. If you change the extension from .cbz to .zip, you can extract it normally.
  • CBR (Comic Book RAR): This is a standard .rar file.

Inside these archives, you will simply find a folder full of sequentially numbered image files (like page_01.jpg, page_02.jpg, etc.). Comic reader apps open these archives and display the images in order.

Translating Comic Archives

Because these files are just collections of images, translating them requires extracting the images, performing OCR (Optical Character Recognition) on the text bubbles, and re-packing them.

With FrancoTranslate's specialized CBZ/CBR Translator, you don't need to manually extract anything. You upload the .cbz file directly, and our engine processes all the internal images automatically, returning a fully translated comic archive ready to read.