Kindle Comic Converter online, without installing it

Updated 2026-11-02

Kindle Comic Converter is the best open-source tool for comics on e-readers. Manga to Kindle runs it on our servers, so you get its page processing without installing anything.

What you get from KCC

• Device profiles for Kindles and Kobos
• Spread splitting and rotation, in manga order
• Margin cropping, auto gamma and contrast
• Webtoon strip slicing

What we add

• Chapter merging: many files become one book, in the right order, with a table of contents.
• USB copy from the browser: the finished book goes straight onto your Kindle.
• Send to Kindle splitting: parts under 200 MB, automatically.
• No kindlegen: nothing to download from Amazon, on any operating system.

When to use the desktop app instead

For huge libraries or offline use, desktop KCC is excellent and free. For a few volumes at a time, from any computer, the online version is quicker.