Quite OK Image in Ć 2.0.0

Windows

Use the msi installer for Windows Explorer/GIMP/Imagine/Paint.NET/XnView MP/Classic plugins and a command-line converter png2qoi.

macOS

Open the dmg file.

Finder thumbnails and preview

Drag QOI.qlgenerator to QuickLook. Run qlmanage -r from the Terminal. Log out and in.

GIMP plugin

Drag file-qoi to GIMP.

Command-line converter

Run from the Terminal:

sudo mkdir -p /usr/local/bin

Then drag png2qoi to bin.

Linux

The deb files are Debian/Ubuntu packages.
The rpm files are Fedora packages.

GNOME

qoi-ci-gdk-pixbuf* is a GNOME plugin. Install to enable thumbnails in GNOME Files (aka Nautilus) and read/write support in Image Viewer (aka Eye of GNOME).
To associate *.qoi with Image Viewer, right-click a QOI file, Open With Other Application, View All Applications, select Image Viewer.

GIMP

Install the relevant qoi-ci-gimp* package.

XnView MP

Install qoi-ci-xnview*.deb.

Command-line converter

Install the relevant qoi-ci-2png* package.

Changes since 1.1.2

• Windows Explorer plugin
• Finder/QuickLook plugin
• GNOME plugin
• png2qoi packaged for Windows, macOS and Linux
• added the -o option to png2qoi