This posting describes the list of software that is open-source and in active use to facilitate initiatives that let humans lend things to other humans.

Background and previous work

There are different concepts for organized networks of collective sharing, Library of things are literally called in Germany Bibliothek der Dinge, or similiar Leihladen or older Ludothek or in Sweden they are called Fritidsbanken.

At least for Germany I know there is a active community of people, that care about these networks and create or curate information about them. Though the different actors come in different forms, some with non-profit background, some of them with active funding or some even with commercial appliances.