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7Z to CBZ converter, without the upload.

Turn 7Z archives into CBZ. It is converted in your browser, so the file never leaves your device.

Drop 7Z files here

or choose from your computer paste with Ctrl V

Ready · other file types work too0 bytes uploaded, ever

Convert to

How to convert 7Z to CBZ

  1. Add your 7Z archives

    Drop 7Z files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.

  2. CBZ is already chosen

    Press Convert. There is nothing else to set. The work happens in this tab.

  3. Download

    Save the CBZ, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The 7Z to CBZ converter is part of this page and runs inside your browser. Your archives are never sent to ToAny or to anyone else.

  • No upload, no queue

    Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

7Z to CBZ: what to expect

7z needs extra software on many computers and phones. CBZ opens in every comic reader and keeps the pages unmodified. 7Z is at home in the smallest archives; CBZ is the usual choice for digital comics and manga.

A password-protected archive is refused, since its contents cannot be read without the password. A comic book archive may hold nothing but page images (and a ComicInfo.xml file). If the archive holds anything else, the conversion is refused and says so.

7Z vs CBZ

7Z

7-Zip archive

7z is the format of the open-source 7-Zip tool. It usually compresses noticeably better than ZIP, at the cost of needing an extra app on many computers.

Opens in 7-Zip, Keka, The Unarchiver, WinRAR; not built into older Windows or macOS

7Z converter
CBZ

Comic book (ZIP)

A CBZ is simply a ZIP file of page images, usually JPG or PNG, named so that they sort into reading order. The extension tells comic readers to show it as a book. Because it is a ZIP, any archive program can open it.

Opens in Comic readers such as YACReader, CDisplay and Calibre; most e-reader apps

CBZ converter
7Z compared with CBZ
7Z7-Zip archiveCBZComic book (ZIP)
Stands for7-Zip archiveComic Book ZIP
TypeCompressed archiveComic book (ZIP of page images)
CompressionLossless (LZMA / LZMA2)ZIP container; the pages keep their own image compression
Introduced1999, by Igor PavlovThe early 2000s, by comic-reader software such as CDisplay (no formal standard)
Opens in7-Zip, Keka, The Unarchiver, WinRAR; not built into older Windows or macOSComic readers such as YACReader, CDisplay and Calibre; most e-reader apps
Best forThe smallest archivesDigital comics and manga
File extension.7z.cbz

Questions

Are my archives uploaded anywhere?

No. The 7Z to CBZ conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Is anything lost when converting 7Z to CBZ?

The content is carried over as faithfully as CBZ allows; features that CBZ does not have are left out.

Can I convert several 7Z files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert 7Z to CBZ on Windows, Mac, iPhone or Android?

The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the 7Z file, press Convert and save the CBZ. There is nothing to install.

Is there a file size limit?

Yes. An archive can be up to 500 MB, unpack to at most 1 GB and hold up to 50,000 files; beyond those limits the page says so. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.