From a folder of loose JPG/PNG pages to one readable Kindle book.
A folder of loose page images — 001.jpg, 002.png, and so on — is how a lot of manga ends up on disk. But a Kindle can't read a folder: the pages need to be packaged into a proper e-book container with a fixed reading order before an e-reader will treat them as a book.
The tool below takes one file per upload: a single image converts directly, and for a full chapter the fastest route is to select the images, compress them into a ZIP (built into Windows and macOS), and upload that. Every page gets processed by MangaSendr's e-ink optimization engine and packaged into a fixed-layout EPUB. If you do this often, MangaSendr's desktop app watches a folder for you — drop a raw image folder in and it's converted and delivered to your Kindle without zipping anything.
Powered by MangaSendr's e-ink optimization engine.
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The free tool takes one file per upload, so for a full chapter compress the images into a ZIP first — right-click > Compress on macOS, or Send to > Compressed folder on Windows — and upload the ZIP. MangaSendr's desktop app accepts raw image folders via watched folders, no zipping needed.
JPG, PNG, and WebP — as single files or inside a CBZ/ZIP archive, up to 200 MB per upload.
Pages are ordered by filename. Use zero-padded numbers (001, 002, … 010) so alphabetical sorting matches the reading order; names like page2/page10 will sort out of sequence.