A ZIP of page images in, a Kindle-ready EPUB out — no renaming, no install.
A lot of digital manga never gets the .cbz extension — it's shared as a plain ZIP full of numbered page images. Functionally that's identical to a CBZ, but a Kindle can't do anything with it: there's no book structure, no reading order, no format an e-reader recognizes.
Upload the ZIP here as-is — no renaming to .cbz required. The converter reads the images inside (JPG, PNG, or WebP, subfolders included), sorts them by filename, runs each page through MangaSendr's e-ink optimization engine, and packages a fixed-layout EPUB you can send to your Kindle by email or USB. Free, no account, up to 200 MB per file.
Powered by MangaSendr's e-ink optimization engine.
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No. CBZ is just a ZIP with a different extension, and the converter accepts both. Upload the .zip exactly as you have it.
By filename, sorted alphabetically. Zero-padded numbering (001.jpg, 002.jpg, … 010.jpg) guarantees the right order — plain numbering can sort 10 before 2, which scrambles the book.
JPG, PNG, and WebP images, up to 200 MB total. Images inside subfolders are picked up too, and system junk files (like __MACOSX entries) are ignored automatically.