Flatnic

Linux · Developer Tools

Black Fennec

Semi-structured Data Editor

by The Black Fennec Team

Download

Official site: flathub.org

About Black Fennec

Black Fennec is free and open source software. It is a simple and easy to use application

for viewing and editing semi-structured data like JSON in a visually interpreted form.

It is written in Python and uses GTK4 and Libadwaita for the user interface.

How to install Black Fennec

  1. Click Download — the developer's official website opens in a new tab.
  2. Download the latest version there and run it. Choose Custom/Advanced where offered, and skip any bundled extras.
  3. Prefer the command line? With Flatpak you can install and update it with: flatpak install flathub org.blackfennec.app
  4. Open Black Fennec once it finishes installing.
How to install Linux apps with Flatpak

Frequently asked questions

Is Black Fennec free to download?

Yes. The Download button sends you to flathub.org, the developer's official site, where Black Fennec is available to download. Flatnic doesn't host or modify any files.

How do I install Black Fennec from the command line?

With Flatpak, run: flatpak install flathub org.blackfennec.app. This installs it from the official source and keeps it updated.

Is Black Fennec safe?

Black Fennec downloads directly from the developer. As always, scan the installer with your antivirus and choose Custom setup to skip any bundled extras.

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