Pack several images into one CBZ comic archive locally - in the order you drop them, no upload.
Running locally on your device ...
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Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
CBZ is the most widespread format for digital comics and manga: a plain ZIP archive whose entries are the individual pages as images, named in reading order. Practically every comic reader - on desktop, tablet or e-reader - opens it directly. If you have a set of scanned or drawn pages, CBZ is the simplest way to bundle them into a single, cleanly pageable volume. This tool takes your images and writes them into exactly such an archive.
The images are taken in the order you add them and given sequential, zero-padded names (page-001, page-002, ...). The padding ensures every reader sorts the pages correctly - even with three-digit page counts. The original images are carried over byte for byte, not re-compressed, so no quality is lost; because JPEG and PNG are already compressed, they are simply stored in the archive rather than packed again. The result is a single CBZ that opens in any common comic reader.
Everything runs entirely locally in your browser (fflate to pack, pure JavaScript - no upload, even offline). Mind the order when you drop the files, because it determines the page sequence in the finished archive. The page names are normalised; the actual image content and the format of each page are left untouched. If you would rather turn the same images into a PDF, use the images-to-PDF tool; for the reverse path from archive to PDF there is CBZ to PDF.
| Input formats | JPG, JPEG, PNG, WEBP, GIF, BMP |
|---|---|
| Output format | CBZ |
| Batch processing | Yes |
| Processing | Locally in your browser (JavaScript) |
| File upload | None |
Limitations: Packs several images into one CBZ (ZIP archive) with sequential, zero-padded page names in drop order. The images are stored unchanged, not re-compressed; the format and quality of each page are preserved. The common page formats (JPEG, PNG and other raster images) are suitable. Reading order follows the order in which you drop the files. With no image input the tool stops with a clear message.
No. The packing happens entirely locally in the browser - even offline.
By the order in which you drop the images; they are numbered sequentially (page-001, page-002, ...).
No. The images are stored unchanged, not re-compressed.
Yes. It is a standard ZIP; any comic reader opens it, and CBZ to PDF turns it into a PDF.