Kindle Comic Converter takes your comics and manga and rebuilds them for e-ink, sizing every page to your exact device, stripping the wasted margins and keeping two-page spreads and right-to-left manga in the right order.
Email a CBZ to your Kindle and it usually arrives as a tiny page boxed in by white margins.
Kindle Comic Converter rebuilds the file so each page fills the screen at your device's exact resolution.
Download Kindle Comic Converter 10.4.0 - free, open source, Windows, macOS and Linux.
What KCC Actually Does
It reads your source pages and rebuilds them into an ebook your reader understands. Input can be JPG or PNG images in a folder, a CBZ or CBR archive, a PDF, or an EPUB.
Output can be MOBI or AZW3 for Kindle, EPUB or KEPUB for Kobo and most other readers, CBZ if you just want a tidied-up archive, or PDF.
Along the way it does the fiddly work that makes comics readable on small e-ink screens: fitting pages to your exact device resolution, removing margins, splitting or rotating double-page spreads, and cleaning up contrast so line art stays crisp.
The result opens fast, turns pages smoothly, and shows each page at full size instead of shrinking it into the middle of the screen.
Pick Your Device Profile First
This is the setting that matters most, and it is the reason KCC exists.
A generic converter resizes to a guess. KCC ships profiles for specific models, so it knows your panel is 1264 by 1680 or 1860 by 2480 and builds every page to fit it exactly.
Choose your actual model rather than the closest-sounding one. A Paperwhite profile on a Scribe wastes most of the screen, and an oversized profile makes files larger with nothing gained.
If your device is newer than your copy of KCC, update before you convert a whole series. Profiles for new hardware arrive in the releases, not in a settings file you can edit.
If You Own a Kindle Scribe, Read This First
The developer's own release notes carry a warning worth repeating: the 2025 Kindle Scribe does not work well with KCC, and conversions can come out with lots of blank pages.
The suggested workaround is to output PDF instead of an ebook format for that device, and read it as a PDF. It is less elegant, and it works.
Version 10.3.0 also raised JPG quality from 85 to 90 for Scribe and Colorsoft specifically, which is aimed at the same blank-page problem. If you hit it on an older build, updating is the first thing to try.
Convert one file and check it before you commit a 200-issue library to any device.
Which Output Format
- Kindle - MOBI or AZW3. Transfer over USB, or use Send to Kindle.
- Kobo - KEPUB gets you Kobo's own page-turn handling. Plain EPUB works too.
- reMarkable, phones, tablets and everything else - EPUB, the universal choice.
- Kindle Scribe 2025 - PDF, for the reason above.
- Keeping an archive - CBZ, which gives you a tidied, resized set of pages without committing to a reader.
Converting a Comic, Step by Step
- Add your files or a whole folder. KCC takes CBZ, CBR, PDF, EPUB or a directory of images.
- Choose your device profile from the dropdown. This is the one setting you should never leave on a guess.
- Pick your output format using the list above.
- For manga, tick manga mode so pages read right to left. Leave it off for Western comics.
- Convert, then open the result and check the first few pages before you queue up the rest of the series.
Everything else can stay on defaults. The deeper controls, gamma, cropping, panel view and per-device tuning, are there when a specific book needs them rather than for every job.
What Changed in 10.4.0
One change alters how your output looks, so it goes first.
Gamma correction now defaults to 1.0, which means off. The old default was 1.8. If a new conversion looks flatter or darker than one you made last year, that is why, and you can set gamma manually to get the old look back.
- Light novel mode for books that are mostly text with occasional illustrations.
- New panel options, including invert direction and a vertical four-panel split.
- EPUB language option and a force EBOK setting, which affects how a Kindle files the finished book.
- EPUB input fixes for spread shifting and file fusion, plus fewer temporary file operations, so large batches finish faster.
- Higher JPG quality for Scribe and Colorsoft, and a Windows 7 dependency bump for the legacy build.
Which Download to Take
- KCC_10.4.0.exe - the standard Windows build, and the right choice for almost everyone.
- kcc_win7_legacy_10.4.0.exe - for Windows 7 machines, which the main build no longer supports.
- macOS - separate builds for Apple Silicon and Intel, plus a legacy build for older macOS versions.
- Linux - an AppImage that runs without installation.
- kcc_c2e and kcc_c2p - the command-line tools, for scripting batch conversions without the interface.
Nothing needs configuring beyond the app itself. KCC runs standalone, and everything happens on your machine.
Cleaning Up Your Pages First
Good input makes a better book. If your scans are skewed, off-colour or need a crop, a light edit in paint.net sorts most problems out.
When hundreds of images need resizing or converting in one pass, a batch tool such as reaConverter saves a lot of clicking.
FFmpeg can pull frames or convert image sequences if your source is unusual, and Internet Download Manager keeps large batches of source files from stalling mid-transfer.
Reading Somewhere Other Than a Kindle
KCC's MOBI and AZW3 output is aimed at Kindle. For a Kobo, a phone or a tablet, EPUB is the universal choice, and a few browser tools cover the jobs KCC does not.
If you already have Kindle files you want to move to a Kobo or Apple Books, the free MOBI to EPUB converter turns them into reflowable EPUB in your browser with nothing to install.
Stuck with a PDF? The PDF to EPUB converter reflows it for smaller screens.
To check a finished file before you sideload it, open it in the browser-based EPUB viewer, which is quicker than transferring to the device to find out.
Reading on a tablet rather than an e-reader? Our guide on turning a tablet into an ebook reader covers the apps and settings worth having.
Who Should Look Elsewhere
There is no Android or iOS version. KCC is a desktop program, so conversion happens on a computer and the finished file goes to your phone or reader afterwards.
If you want to manage a whole ebook library rather than convert comics, Calibre is the tool for that, and the two work well together: convert in KCC, catalogue and transfer in Calibre.
If you only want to read a CBZ on the computer you are already sitting at, you do not need a converter at all. Comic archives are zipped images, and many image viewers open them directly.
The tell that KCC is the right tool: the file is going onto an e-ink device, and it looked wrong when you tried the direct route.
Is It Safe and Free?
Yes on both counts. KCC is free and open source with no paid tier and no bundled extras, actively maintained by its developer community.
Everything runs locally. Your files never leave your computer during conversion, which is worth knowing if your library is large or personal.
Quick questions
Is there a Kindle Comic Converter for Android?
No. KCC is desktop only, for Windows, macOS and Linux, so you convert on a computer and send the finished file to your device. To read comics directly on Android, use a comic reader app rather than a converter.
Why are my converted pages blank?
On the 2025 Kindle Scribe this is a known problem the developer has flagged, and outputting PDF instead is the current workaround. On other devices, update to the latest version first, since JPG quality was raised specifically to address it.
Where is the panel view setting?
Virtual panel view is switched on in the Aa menu on your Kindle, not in KCC. This catches a lot of people out, because it used to be a converter setting.
MOBI or EPUB for a Kindle?
Either works. MOBI and AZW3 are the Kindle-native choices in KCC, and both transfer over USB or through Send to Kindle.
Does it work on Mac or Linux?
Yes. There are macOS builds for Apple Silicon and Intel, a legacy macOS build, and a Linux AppImage, alongside the Windows version hosted here.
My new conversions look different from my old ones. What changed?
Gamma correction now defaults to 1.0, meaning off, where it used to be 1.8. Set it manually if you preferred the previous look.
Can it convert DRM-protected comics?
No. Files bought from a store with DRM cannot be converted, and that applies to every tool of this kind.
Download Kindle Comic Converter 10.4.0 and see how it handles your library, or tell us how you got on if you have used it before.
