Listaller is a free computer software installation system (similar to a package management system) aimed at making it simple to create a package that can be installed on all Linux distributions as well as providing tools and API to make software management on Linux more user-friendly.

Listaller was started in December 2007 by freedesktop.org developer Matthias Klumpp as an experimental project to explore the possibility of writing a universal user interface to manage all kinds of Linux software, no matter how it was installed.

[2] Listaller also provided a cross-distribution software installation format which should have made it easier to create packages which run on multiple distributions.

Because Pascal was not considered as ideal language to collaborate with other projects and the project already had spent much time in developing Pascal bindings to third-party libraries, Listaller was rewritten in Vala with a subset of the original features and the main goal to provide seamless integration with AppStream and PackageKit.

This makes it possible for Listaller to install software for non-root users into their home directory, although this method has to be enabled explicitly and its use is not encouraged.

Autopackage tools like BinReloc to create relocatable applications or APBuild are now developed as part of the Listaller project.

Reason for merging Autopackage into Listaller was mainly a great lack of developers in both projects so they decided to join forces.