Next generation manga reader



  • Fast: Despite using WebKitGtk, a port of an entire browser engine to GTK, Korai is incredibly fast loading chapters.
  • Reliable: Works with manga/comic names that contain unusual characters and doesn’t crash for no reason.
  • Easy to use: Everything is where it should be. No previous configuration required for almost anything.

Command line options

For more information, please execute korai -h

  • Run a tutorial: korai -t
  • Maximize the window: korai -m
  • Set default window size: korai -s <width>x<height> (Note the ‘x’)


To make life easier, Korai supports some shortcuts:

  • Pressing ‘o’ will will open a dialog to open a file
  • Pressing left arrow will change to the previous chapter
  • Pressing right arrow will change to the next chapter


Korai requires:

  1. A compiler that supports C++17 (GCC > 5.0)
  2. Gtkmm 3
  • Ubuntu & Debian: sudo apt install libgtkmm-3.0-dev
  • Arch: sudo pacman -S gtkmm3
  1. WebKit2Gtk
  • Ubuntu & Debian: sudo apt install libwebkit2gtk-4.0-dev
  • Arch: sudo pacman -S webkit2gtk-4.0
  1. Unzip
  • Ubuntu & Debian: sudo apt install unzip
  • Arch: sudo pacman -S unzip


To build Korai, please enter the following commands:

git clone https://github.com/DisableGraphics/Korai
cd Korai

The program will be in the build/ directory


  1. The window is completely blank!
  • There’s an issue surrounding WebKitGtk that produces this problem, to solve it, please run the following commands:

rm ~/.local/share/mime/packages/user-extension-html.xml
update-mime-database ~/.local/share/mime
  1. Hey, a weird file named index.html and a folder named tmp have appeared!
  • These two files are crucial for the operation of Korai. Don’t worry, when the program is closed, they will be deleted.
  1. Hey, a weird file named chapter.conf has appeared and doesn’t get deleted after closing!
  • This file is where Korai saves the last chapter the user was reading. Its path can be changed using the korai -f /path/to/save_file.conf command
  1. Hey, there’s no Windows version!
  • WebKitGtk doesn’t support Windows and so does Korai


View Github