A shepherd for your Appimages.
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Aly Raffauf
(Jun 18, 2026, 12:59 PM EDT)
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README.md
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[](https://github.com/alyraffauf/appherder/actions/workflows/ci.yml) [](http://www.gnu.org/licenses/gpl-3.0) [](https://ko-fi.com/alyraffauf)
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<div align="center">
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<h1>appherder</h1>
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<h1>AppHerder</h1>
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<h3>A shepherd for your AppImages.</h3>
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</div>
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appherder automatically installs, removes, and upgrades your AppImages. Throw them in `~/AppImages` and appherder does the rest: apps appear in your menu, deleted ones disappear from it, and supported apps update in place.
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AppHerder automatically installs, removes, and upgrades your AppImages. Throw them in `~/AppImages` and AppHerder does the rest: apps appear in your menu, deleted ones disappear from it, and supported apps update in place.
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## Features
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appherder install https://example.com/Foo.AppImage
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```
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See what you have, remove what you don't:
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See what you have, remove what you don't want:
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```bash
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appherder list
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appherder rollback foo 1.2.3 # or restore a specific saved version
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```
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appherder keeps the last few versions of each app and saves the current one whenever an install or upgrade replaces it.
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AppHerder keeps the last few versions of each app and saves the current one whenever an install or upgrade replaces it.
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Coming from another AppImage tool? `appherder migrate` adopts the ones in `~/AppImages` and clears out launchers whose AppImage is gone.
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## Verified updates
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Some AppImages are signed by their publisher. The first time appherder installs a signed app, it pins that signing key. From then on, every update must be signed by the same key: an unsigned, tampered, or differently-signed build is refused instead of installed. Changing the trusted key is deliberate, so swapping publishers means uninstalling and reinstalling. Apps that aren't signed keep working as before; the pin only takes effect once a real signature has been seen.
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Some AppImages are signed by their publisher. The first time AppHerder installs a signed app, it pins that signing key. From then on, every update must be signed by the same key: an unsigned, tampered, or differently-signed build is refused instead of installed. Changing the trusted key is deliberate, so swapping publishers means uninstalling and reinstalling. Apps that aren't signed keep working as before; the pin only takes effect once a real signature has been seen.
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`appherder list` shows each app's status in the **SIGNATURE** column: `pinned` (key locked in), `signed` (carries a signature appherder hasn't pinned yet), or `none`.
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## Under the hood
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appherder reads the AppImage's squashfs filesystem directly to grab its icon and desktop entry, then writes a launcher pointing back at the file in `~/AppImages`. It does this without ever running the AppImage, unlike tools that launch it to unpack. Everything it writes is tagged, so uninstall and sync only touch its own files.
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AppHerder reads the AppImage's filesystem directly to grab its icon and desktop entry, then writes a launcher pointing back at the file in `~/AppImages`. It does this without ever running the AppImage, unlike tools that launch it to unpack. Everything it writes is tagged, so uninstall and sync only touch its own files.
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## License
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