Turn CB7 comic books into 7Z. It is converted in your browser, so the file never leaves your device.
Drop CB7 files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop CB7 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.
Press Convert. There is nothing else to set. The work happens in this tab.
Save the 7Z, or download everything as one ZIP if you converted several files.
The CB7 to 7Z converter is part of this page and runs inside your browser. Your comic books are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
CB7 is read by fewer comic readers than CBZ. 7z usually compresses tighter than ZIP. CB7 is at home in digital comics and manga where a smaller file matters; 7Z is the usual choice for the smallest archives.
A password-protected archive is refused, since its contents cannot be read without the password.
A CB7 is a 7z archive of page images. 7z can pack the pages a little tighter than ZIP, but fewer comic readers support it, so it is the rarest of the three comic archive types.
Opens in Comic readers such as YACReader and Calibre; fewer than CBZ
CB7 converter7z 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| CB7Comic book (7z) | 7Z7-Zip archive | |
|---|---|---|
| Stands for | Comic Book 7z | 7-Zip archive |
| Type | Comic book (7z of page images) | Compressed archive |
| Compression | 7z container; the pages keep their own image compression | Lossless (LZMA / LZMA2) |
| Introduced | The 2000s, by comic-reader software (no formal standard) | 1999, by Igor Pavlov |
| Opens in | Comic readers such as YACReader and Calibre; fewer than CBZ | 7-Zip, Keka, The Unarchiver, WinRAR; not built into older Windows or macOS |
| Best for | Digital comics and manga where a smaller file matters | The smallest archives |
| File extension | .cb7 | .7z |
No. The CB7 to 7Z conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
The content is carried over as faithfully as 7Z allows; features that 7Z does not have are left out.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
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 CB7 file, press Convert and save the 7Z. There is nothing to install.
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.