Flatpak KCM is a KDE Plasma System Settings module for managing application permissions. It provides a graphical interface for controlling which resources and desktop services applications can access.
The module allows users to inspect and adjust sandbox permissions without manually editing configuration files or issuing terminal commands. Permissions can be configured individually for each application, making it possible to grant access to resources that an application needs while restricting unnecessary access.
Flatpak KCM also handles desktop portal permissions. These govern interactions between applications and desktop services, including screen sharing, remote desktop access and other capabilities that require user authorisation. Previously granted permissions can be reviewed and revoked when no longer required.
The module integrates directly into KDE Plasma’s System Settings, providing a familiar interface consistent with the rest of the desktop. It is particularly useful for users who want more control over application behaviour and privacy without learning the underlying permission management commands.
This is free and open source software.
Key Features
- Graphical management of individual application sandbox permissions.
- Control filesystem access, including access to home directories and specific paths.
- Configure device, network and inter-process communication permissions.
- Review permissions granted to individual applications.
- Manage desktop portal permissions from KDE Plasma’s System Settings.
- Review and revoke remembered screen sharing and remote desktop permissions.
- Override application defaults to grant or restrict access to system resources.
- Native integration with KDE Plasma’s application permissions interface.
Website: invent.kde.org/plasma/flatpak-kcm
Support:
Developer: KDE Community
License: GNU General Public License v2.0

Flatpak KCM is written in C++. Learn C++ with our recommended free books and free tutorials.
Related Software
| Flatpak Tools | |
|---|---|
| Warehouse | Versatile GNOME-based toolbox for managing Flatpaks |
| Flatseal | Graphical utility to review and modify permissions |
| Flatpak KCM | Flatpak Permissions Management |
| Flatsweep | Flatpak leftover cleaner |
| Easy Flatpak | Manage flatpaks with a simple GUI |
| FlatSync | Synchronize flatpak applications between devices |
| Bazaar | App store for GNOME |
| jdFlatpakSnapshot | Create snapshot of a Flatpak’s data |
| Flatpak External Data Checker | Check external sources for updates in Flatpak app manifests |
| Outlet | Application management client for Flatpak |
| jdPermissionStoreEdit | Graphically view and edit Flatpak permission store entries |
| flatpak-builder | Build Flatpak applications using source manifests |
| Door Knocker | Check available XDG desktop portals |
Read our verdict in the software roundup.
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This sound much like Flatseal.
Both apps let you review and modify permissions from Flatpak apps. But the way they are implemented is quite different. For example Flatpak KCM is nicely integrated with KDE Plasma.