Convert CBR to CBZ online and repack comics as ZIP without re-encoding a single page. Upload files up to 20GB and download the converted result in a few clicks.
Drag & Drop your CBR file here
CBR files, up to 20GB
Files stay private.
Automatically deleted after 24 hours.
Link
20GB upload limit.
4.8/5
Trusted for 1,827,796+ conversions
HOW IT WORKS
Three steps, no account, nothing to install.
01
Add your CBR
Drag and drop or upload a CBR comic. RAR 4, RAR 5 and CBR files that are really ZIP or 7z archives all work.
02
Repack as CBZ
Keep CBZ as the output format and start the conversion. The pictures move into a ZIP archive as they are, in reading order.
03
Download the CBZ
Download the CBZ and open it in your comic reader or add it to your comic library.
CBR
CBR (comic book RAR) is a digital comic stored as a RAR archive of page pictures, usually JPEG or PNG. Comic and manga reader apps show it as a book. Many files named .cbr are really ZIP or 7z archives with the wrong name.
CBZ
CBZ (comic book ZIP) is a ZIP archive of page pictures that comic and manga readers show as a book. ZIP support is built into Windows, macOS, Linux and most programming languages, so CBZ files are easier to open, edit and process than RAR-based CBR files.
FILE FORMATS
SOURCE
A CBR is a comic book archive: a RAR file of page pictures in reading order, renamed so comic readers recognize it. CBR was the common format of scanned comics and manga. RAR needs extra software on most systems, and many files named .cbr are actually ZIP or 7z archives.
TARGET
A CBZ is a comic book archive built on ZIP: page pictures in reading order, usually JPEG or PNG, sometimes with chapter folders and a ComicInfo.xml file. Because ZIP is open and universal, CBZ works in nearly every comic reader, including Kavita, Komga, Calibre and Panels.
| Feature | CBR | CBZ |
|---|---|---|
| Developed by | Comic reader community (RAR) | Comic reader community (ZIP) |
| File extension | .cbr | .cbz |
| Compression | RAR | ZIP (pictures stored as they are) |
| Packs | Page pictures in order | Page pictures in order |
| Opens without extra software | No, needs a comic reader | Opens as ZIP; readers show pages |
| Best for | Comic and manga downloads | Comics in any reader |
USE CASES
Practical workflows where CBR to CBZ conversion is useful.
Use readers that only open CBZ
Some comic readers and library apps handle ZIP-based CBZ files but not RAR. Repacking lets those apps open the comic.
Edit comic metadata
Add or fix a ComicInfo.xml file with ordinary ZIP tools, which can write ZIP archives but usually not RAR.
Keep the exact page quality
Pictures are copied byte for byte and never re-encoded, so every page is identical to the original.
Fix garbled chapter names
Most folder names that a Windows or Mac ZIP tool stored without Unicode, such as Japanese 第1話, Chinese 第1话 or Korean 제1화, are written back as readable names.
Clean out junk files
__MACOSX folders and .DS_Store, Thumbs.db and desktop.ini files are dropped, so only the comic's own files are left.
Standardize a mixed collection
Files named .cbr that are really ZIP or 7z archives become proper CBZ files, so a collection has one consistent format.
Process comics in scripts
Developers who batch-process comics can read CBZ files with standard ZIP libraries, without installing unrar.
Keep chapter folders in a volume
A volume with one folder per chapter keeps that structure, so readers that show folders still list each chapter.
Archive in an open format
Archivists prefer ZIP, an open and widely supported format, to RAR, which only RAR's own software can create.
Keep series details for a library app
ComicInfo.xml is kept, so the series, title and issue details stored in it still show in comic library apps after repacking.
SUPPORTED FILES
CBR comics, including ones that are really ZIP or 7z, are supported.
Standard CBR files.
Files named .cbr that are really ZIP or 7z.
Folders and file names are kept, including Japanese, Chinese and Korean names.
Stored as they are, with no re-encoding.
Refused, along with archives containing symbolic links.
TROUBLESHOOTING
These explain most differences between the original and the converted book.
01
The book is copy-protected. Only DRM-free books, such as Project Gutenberg downloads or books you made, convert.
02
The file's contents are checked, not just its name. A renamed file is refused with a message saying what it looks like.
03
Password-protected archives can't be opened. Extract the pages yourself and pack them without a password.
04
A single part such as name.part1.rar is incomplete. Extract all parts with a RAR tool and pack the pages into one archive.
05
Pictures are already compressed and are stored as they are, so the size stays about the same.
06
Most names are made readable, but a few unusual encodings can't be recovered.
Calibre, comic reader apps and archive tools such as 7-Zip or WinRAR can repack comics once installed. dragdropdo converts CBR to CBZ in the browser, on any device.
| What matters | dragdropdo | Comic Readers and Archivers |
|---|---|---|
| Nothing to install | ✓Yes. Runs in any modern browser. | ~Yes, a desktop download, and RAR tools are often paid. |
| Works on phones and tablets | ✓Yes. Desktop, Android, iPhone and iPad. | ~Reader apps open comics but rarely convert them. |
| Batch conversion | ✓Yes. Add many files and download one ZIP. | ~Calibre can, through its library. |
| Share finished files | ✓Yes. Send a unique link from the result page. | ~You upload and share the files yourself. |
| Pricing | ✓Free with daily limits. $2.99 or $6.99 passes for unlimited use, no monthly plan. | ~Free (Calibre, 7-Zip) to paid (WinRAR). |
| Editing or reordering pages | ✓Not in the converter. Pages keep their order and pictures. | ~Yes, in archive tools and comic editors. |
Other tools use different pricing, limits and workflows. This comparison describes dragdropdo's own features without assuming every other tool works the same way.
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WHY DRAGDROPDO
Convert CBR to CBZ in your browser, with nothing to install and nothing kept after 24 hours.
Private by default
Files are encrypted in transit and deleted from our servers automatically after 24 hours.
No install required
Convert in any modern browser on Windows, Mac, Linux, Android, iPhone or iPad. No app and no sign-up wall.
Big files and batches
Upload files up to 20GB each, add several at once, and download the results one by one or as a ZIP.
Share & download
Save finished files to your device or pass them on with a share link from the result page.
MORE CBR TOOLS
CBR (comic book RAR) is a digital comic or manga stored as a RAR archive of page images, usually JPEG or PNG, which comic reader apps show as a book in file-name order. CBR files are made with RAR software such as WinRAR, and some files named .cbr are actually ZIP archives.
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FAQ
Answers to common questions about dragdropdo's CBR to CBZ converter.
