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Images to CBZ

Pack several images into one CBZ comic archive locally - in the order you drop them, no upload.

Running locally on your device ...

Running locally on your device ...

0%

Is my file uploaded?

No. Everything runs in your browser - your file never leaves your device. How this is verifiable

No upload100% local
Your content stays with youno third-party access
Hosted in GermanyGlobal Content Delivery
Independently auditedTLS A+ · HTTP headers A+

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.

Specifications

Specifications
Input formatsJPG, JPEG, PNG, WEBP, GIF, BMP
Auto-conversionTIFF, ICO, SVG, HEIC, PDF, DOCX, DDS, HDR, PCX, WBMP
Output formatCBZ
Batch processingYes
ProcessingLocally in your browser (JavaScript)
File uploadNone

In 3 steps

  1. Drop or tap your images in reading order.
  2. The tool names them sequentially and packs them.
  3. Download the CBZ and open it in any comic reader.

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. A CBZ has no text layer - so there is no formatting or table structure to carry over, each page stays a single raster image. Reading order follows the order in which you drop the files. With no image input the tool stops with a clear message.

FAQ

Are my images uploaded?

No. The packing happens entirely locally in the browser - even offline.

How is the page order determined?

By the order in which you drop the images; they are numbered sequentially (page-001, page-002, ...).

Does the CBZ lose image quality?

No. The images are stored unchanged, not re-compressed.

Can I open the CBZ again?

Yes. It is a standard ZIP; any comic reader opens it, and CBZ to PDF turns it into a PDF.

Related tools

CBZ to PDF · Create ZIP · JPG to PDF · XML to TOML · TOML to XML · Parquet to CSV · CB7 to CBZ · CBR to CBZ