.CBZ File Extension

File Type 1

Comic Book Zip Archive

Developer David Ayton
Popularity
3.8  |  39 Votes
Category Compressed Files
Format Zip

What is a CBZ file?

A CBZ file is a comic book archive saved in the Comic Book Zip (CBZ) format, which is a .ZIP file with a .cbz file extension. It contains multiple images, commonly .PNG or .JPEG files, typically organized into folders that correlate with the pages and chapters of the comic. CBZ files may also store metadata, including a table of contents, story information, and the artists that created the comic book.

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Screenshot of a .cbz file in Calibre 6
CBZ file open in Calibre 6

David Ayton, who developed CDisplay, a now discontinued image viewer optimized for viewing free comic books, created and popularized the CBZ format (naming scheme) in the early 2000s. CDisplay also popularized several other comic book archive formats, with each format using a file extension that signifies its format:

  • CBZ - Comic Book Zip Archive
  • .CBA - Comic Book ACE Archive
  • .CBR - Comic Book RAR Archive
  • .CBT - Comic Book TAR Archive
  • .CB7 - Comic Book 7-Zip Archive

NOTE: Besides PNG and JPEG images, CBZ files may also store .BMP, .TIFF, and .GIF images.

How to open a CBZ file

You can open CBZ files with various comic book viewers, including Calibre (multiplatform) and MComix (multiplatform). For example, to open a CBZ file with Calibre, select Add books.

Opening a CBZ file with a compression utility

CBZ file open in Apple Finder
CBZ file open in Apple Finder

Since CBZ files are Zip-compressed, you can extract CBZ files with a compression utility, such as File Explorer in Windows or Apple Archive Utility in macOS. You can extract the images in the CBZ file and view them with an image editor that supports the format in which they are saved. However, the order of the extracted images may be incorrect.

How to convert a CBZ file

Various comic book applications, including Calibre and GonVisor, can convert CBZ files to other formats.

For example, Calibre can convert CBZ files to many file types, including the following formats:

  • .EPUB - Open eBook File
  • .AZW3 - Amazon KF8 eBook File
  • .FB2 - FictionBook 2.0 File
  • .LIT - eBook File
  • .DOCX - Microsoft Word Document
  • .RTF - Rich Text Format File
  • .PDF - Portable Document Format File
Open and view .CBZ files with File Viewer Plus.Free Download

Programs that open or reference CBZ files

Updated September 2, 2022
File Type 2

ChessBase Encrypted Database Archive

Developer ChessBase
Popularity
2.4  |  7 Votes
Category Data Files
Format Binary

What is a CBZ file?

File created by ChessBase, a program used for reviewing chess games played; saves all files for the database in a single archive and encrypts them with a user-specified password; allows databases to be shared securely.

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NOTE: ChessBase databases by default are comprised of many different files, such as .CBH (header) and .CBG (game moves) files. Therefore, CBZ files are convenient ways to share all files in a single archive. You can also archive a database into a non-encrypted version by using the .CBV format.

Programs that open CBZ files

Windows
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Updated August 29, 2012

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