Convert comics to EPUB

Whether it's a scanned golden-age book or a digital release, tanko turns a comic archive into a clean fixed-layout EPUB: every page resized for your reader's exact screen, contrast-corrected (aged, yellowed scans get their white background back), and packaged with proper cover and page order.

Device
Reading direction
Two-page spreads

It runs entirely client-side — your files never touch a server, which also means no size limits and no waiting in line.

Frequently asked questions

What input formats are supported?
CBZ (and plain ZIP) today, with pages in JPEG, PNG, WebP, or GIF. CBR and PDF input are next on the roadmap.
What happens to old, yellowed scans?
An automatic levels pass maps the aged paper tone back to clean white and faded ink to true black — without crushing the halftone shading in between. It skips pages that are already clean.
Do my files get uploaded anywhere?
No. Conversion runs entirely in your browser — the file never leaves your device. That's also why there are no size limits or queues.
Is this really free?
Yes. Single-file conversion with every device profile and every option is free, with no sign-up and no watermarks.