Open CBZ files online
CBZ and CBR are comic-book archives — a ZIP or RAR of ordered images. The viewer unpacks them and shows the pages in order.
Drop a CBZ file to open it
or click to choose — everything stays on your device
Choose file🔒 100% private — files never leave your browser
What is a CBZ file?
CBZ and CBR are comic-book archives — a ZIP or RAR of ordered images. The viewer unpacks them and shows the pages in order. The .CBZ extension identifies a Comic Book Archive file, which is served with the application/vnd.comicbook+zip media type. You can open it here instantly — drop the file into the box above and it renders in your browser. Nothing is uploaded.
Besides this free online viewer, you can open Comic book (CBZ/CBR) files in desktop apps such as YACReader, CDisplayEx, Calibre — but here all you need is a web browser.
Quick facts
| Format | Comic book (CBZ/CBR) — Comic Book Archive |
|---|---|
| File extensions | .cbz .cbr |
| MIME type | application/vnd.comicbook+zip |
| Developer | community standard |
| Category | E-books & comics |
| Also opens in | YACReader, CDisplayEx, Calibre |
How to open a CBZ file online
- Click Choose file above, or drag your CBZ file onto the box.
- The right viewer loads automatically and renders your file.
- Read, scroll or page through it. To open a different file, choose Open another file.
100% private — files never leave your browser.
Libraries used to render CBZ in the browser
This viewer is built entirely with open-source JavaScript that runs in your browser:
Frequently asked questions
What is a .CBZ file?
A .CBZ file is a Comic Book Archive, identified by the application/vnd.comicbook+zip media type. You can open and read it instantly in the viewer above without installing anything.
What programs open CBZ files?
On the desktop, CBZ files typically open in YACReader, CDisplayEx, Calibre. Online, this page opens them in any modern browser — nothing to download.
Is it safe to open my CBZ file here?
Yes. The file is read and rendered entirely by JavaScript inside your own browser. It is never uploaded to a server, so nothing leaves your device.
Do I need to install anything to view a CBZ file?
No. There is nothing to install and no account to create. Open the page, drop your file, and it displays instantly.
Does it work on my phone or iPad?
Yes. The viewer is fully responsive and works in modern mobile and tablet browsers such as Safari and Chrome.
Is there a file size limit?
There is no hard limit, but very large files depend on your device’s memory. Big files are processed in the background so the page stays responsive.