MangaDock

MangaDock is a local manga viewer that allows you to read ZIP-format manga files without unzipping them.
It directly loads ZIP/CBZ files and displays pages in streaming.
Manage your manga with the bookshelf function and automatically save your reading position.
Multiple ZIP files and folders can be added at once, and bulk deletion is also possible in selection mode.
It supports double-page spreads in landscape orientation, and can be set to right- or left-hand binding. Double-page spreads are automatically detected, allowing you to read in the optimal view.
A seek bar with thumbnails makes page jumping easy.
The download management function allows you to download multiple files in the background and check the progress.
Supports Japanese and English, and you can customize the theme color (5 colors) and number of grid columns.
Upgrading to the Pro version (monthly or yearly subscription) allows you to read without ads.