Decoder – A Nifty QR Code Scanner & Generator for Linux

Looking for a QR Code scanning and generating application for Linux? Here’s an open-source GTK+ tool called ‘Decoder’ which offers a modern user interface.

Decoder is a free and open-source tool designed for Gnome Desktop. It can generates QR codes for either text or Wifi Network to share with your friends.

The generated QR Codes can be either in white or dark. It offers export button to export codes to PNG or SVG image files, and save button to make the code available in History tab.

The software supports for scanning from computer webcam via “Scan” tab. There’s also an icon to capture from a screenshot.

How to get Decoder in Linux:

The software project is hosted in Gnome Gitlab.

Besides building from the source code, it so far only offers the universal Linux flatpak package which can be installed via following steps:

  1. First follow the guide to setup flatpak if you’re first time installing an flatpak application.
  2. Then open terminal and install the scanner:
    flatpak install flathub com.belmoussaoui.Decoder

Once installed, open it from system application launcher and enjoy!

Uninstall Decoder:

To remove the QR Code scanner and generator, simply run command:

flatpak uninstall com.belmoussaoui.Decoder
Merilyn Ne
Hi, I'm Merilyn Ne, a computer geek working on Ubuntu Linux for many years and would like to write useful tips for beginners. Forgive me for language mistakes. I'm not a native speaker of English.