Cosmic Comics is described as 'Offers a user-friendly interface that makes it easy to navigate your collection of comics, manga and ebooks' and is a comic and manga reader in the news & books category. There are more than 50 alternatives to Cosmic Comics for a variety of platforms, including Android, Windows, iPhone, iPad and Android Tablet apps. The best Cosmic Comics alternative is Kotatsu, which is both free and Open Source. Other great apps like Cosmic Comics are Aniyomi, YACReader, Kavita and Komikku App .
Comix is an image viewer specifically designed to handle comic books. It reads ZIP, RAR and tar archives (also gzip or bzip2 compressed), as well as plain image files. It has a simple and user-friendly GUI using PyGTK.
Perfect Viewer is a very fast image/comic viewer.
*Turn black/white image into 4 colorize image(Only available for donated users. Need install Perfect Viewer donation application). *Page layout: Auto single page, Auto dual page, Auto switch by screen orientation *Support Windows.
China
NeeView is a Free and Open Source, modern and powerful image viewer and a manga/comic reader that has high quality scaling options and many different customization options.
Japan
OpenComic is a free and open-source comic and manga reader for Windows, Mac and Linux, written with Node.js and using Electron.
A local-first comic library organizer for macOS that turns your existing folders of CBR, CBZ and PDF files into a visual shelf, without importing or moving anything.
Spain
EU
CDisplay is a free sequential image viewer utility for Windows used to view images one at a time in the style of a comic book. CDisplay was written to easily view JPEG, PNG and static GIF format images sequentially.
United States
Malaysia
An online/offline manga reader for GNOME, developed with the aim of being used with the Librem 5 phone.
"MANGA Plus by SHUEISHA" is the official manga reader from Shueisha Inc., and is available globally.
United States
Panels is a CBR/CBZ/PDF comic reader for your iPhone and iPad devices. Enjoy reading your comics in a clean and delightful interface.
SpainEU
Komik is the first comic/manga viewer and collection manager designed specifically for Android tablets and phones. I would love to hear any suggestions from you.
