No-upload online reader

Read CBZ online without uploading it

An online CBZ reader usually means an upload, a queue, and a temporary link. This one opens the archive in your browser instead, so the file never leaves your device.

No upload
No account
Right-to-left ready
Remembers your page

What "online" should mean for a local file

You already have the comic. The only thing you need is a viewer. Sending a 600 MB archive to a stranger just to look at page one is unnecessary work for both sides.

This reader uses the File API to read the archive from disk. The ZIP central directory gives the page list, and only the page you are looking at is decompressed. The rest of the archive stays on disk until you reach it.

How to open your file

Open the CBZ Reader home page.
Click "Open a CBZ file" and choose the archive, or drag it onto the reader.
Wait for the page count, then read with the arrow keys, swipe, or the page slider.
Come back later with the same file and the reader offers to resume at your last page.

When a desktop browser is the better choice

Phones are fine for reading, but the file picker on iOS is a few taps deeper than on a desktop. If you are organising a library, testing a batch of archives, or reading a very large scan, a desktop browser with drag and drop is the fastest path.

Questions

Do I need to install anything?

No. It is a static website. There is no extension, no desktop app, and no sign-up.

Can I use it offline?

Once the page is loaded, the reader itself works without a network connection. Your comic is already local, so page turns do not depend on the server.

Why does the first page take a moment on a huge archive?

The browser has to read the archive directory and decode the first image. After that, nearby pages are preloaded in the background. On phones, very large pages are downsampled to stay inside the tab memory limit.

Read a CBZ right now

Drop a file into the reader. It stays on your device.

Open the CBZ reader