AppGlider

AppGlider is a free, open-source AppImage manager for Linux. It installs AppImages straight from a project's GitHub releases, keeps them up to date and adds them to your application menu, all from one window.

You add an app by pasting its GitHub repository. AppGlider finds the AppImage in the latest release and asks you to choose when there is more than one build. Before anything is installed, it checks the download against the release's published SHA-256 checksum, along with the file size and that it really is an AppImage for your CPU. If a download fails or is cancelled, your current version stays as it was.

When an app updates, the previous version is kept, so you can roll back in one click if a new release breaks something. Each app can follow stable releases or previews, and can be held at its current version. Menu entries use each app's own category and file types, and you can set launch arguments and environment variables per app.

AppGlider checks for updates in the background without using up GitHub's API limits. It can sit in the system tray and send a notification when updates are ready. You can export your list of apps as a plain-text catalog and import someone else's. AppGlider is itself an AppImage, needs no root access and updates itself.

It's for Linux desktop users who get apps as AppImages from GitHub and want them installed, verified and kept current without downloading each new version by hand. It works on any 64-bit (x86_64) Linux about as new as Ubuntu 22.04.