How to open a CBR file
A CBR file is a RAR archive with the pages of a comic inside it, numbered in reading order. That is the whole format. The C and B stand for comic book and the R for RAR, so there is nothing exotic to decode: any tool that can unpack a RAR can already see your pages.
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Which means the usual advice, install one of these six comic readers, is answering a question most people are not asking. If you want to read the comic on a Kindle, Kobo, tablet or phone, installing a desktop reader does not help, because the file still will not open on the device. Drop the CBR here instead: the pages come out as a CBZ that every comic app opens, or as an EPUB or PDF built for the screen you actually read on.
- Files auto-delete after 24 hours
- No install, runs in any browser
- Free to use
- The genuine open-source KCC engine
How to open a CBR without installing anything
Drop the CBR in
The archive is unpacked here and read page by page, in order. Nothing to install, and it works the same on a phone as on a desktop.
See the pages
A live preview shows the pages as they will come out, so you can confirm it is the right book and the order is right before you commit to anything.
Pick what should open it
Choose CBZ for any comic reader app, EPUB for an e-reader or a phone library, or PDF if you want fixed pages that open anywhere. Choose your exact device and the pages are rebuilt for that screen.
Download and read
The converted file downloads straight away and opens in the app or on the device you picked it for. Files auto-delete after 24 hours.
Opening it and reading it are different problems
A desktop reader solves opening. It does not solve reading on the device that is actually in your hand, which is where most CBR files are headed. Converting solves both at once, because a CBZ, EPUB or PDF opens on the desktop as well.
RAR is why CBR is the awkward one
RAR is a proprietary format, so support for it is patchier than for ZIP across apps, phones and e-readers. That is the whole reason a CBR refuses to open in places a CBZ would, and it is why converting to CBZ fixes so many of these cases.
Frequently asked questions
What program opens a CBR file?
Any comic reader will, and so will any archive tool if you rename the extension to .rar and unpack it, because that is what a CBR is. The more useful question is what opens it on the device you want to read on, and for a Kindle, Kobo or most e-readers the answer is nothing: those need the comic converted first, which is what this page does.
Can I open a CBR without downloading software?
Yes. Drop it above and the pages are unpacked and shown in the browser. If you only wanted to check what is inside, the preview is enough and you can stop there.
Why will my CBR not open on my Kindle or Kobo?
Neither has a CBR reader, and e-reader firmware generally does not read RAR at all. The file is ignored rather than refused, which is why nothing seems to happen. Converting it to an EPUB built for your model puts the pages in the library properly.
Is CBR different from CBZ?
Only in the archive underneath: CBR is RAR, CBZ is ZIP, and both just hold page images. CBZ has wider support because ZIP is everywhere, so converting CBR to CBZ is the usual fix for a file some app refuses to open.
Will the page order stay correct?
Yes. Pages are read in the order the archive names them and kept in that order, and you can see that in the preview before converting. For manga, turning on right to left reading sets the direction too.
The unpacking and page rebuild run on Kindle Comic Converter (KCC), the open-source engine comic readers have trusted for years, hosted here with a live preview so there is nothing to install.
Free, no install, see the pages first, convert for any device