Koha is the first open-source Integrated Library System (ILS), and it is also a fully featured, scalable library management system. This means it can be used by libraries of all sizes, from small local libraries to large national systems.

Koha is built entirely using Perl and related technologies.

Official site: Koha-community.org

Koha is used worldwide, and its development is steered by a growing community of libraries collaborating to achieve their technology goals. Koha's impressive feature set continues to evolve and expand to meet the needs of its user base. The development of Koha is sponsored by libraries of varying types and sizes, as well as volunteers and support companies. This sponsorship helps ensure that Koha continues to evolve and improve, making it one of the most successful library management systems in the world.

Koha is a full-featured ILS with a dual-database design (search engine and RDBMS) built to be compliant with library standards. Koha’s OPAC, staff, and self-checkout interfaces are all web applications. Distributed under the General Public License (GPL), libraries are free to use and install Koha themselves, or they can purchase support and development services.

The term "Koha" is a Maori word meaning a gift or donation.

Koha is used by public, school, special, and academic libraries around the world. The first installation was in January 2000.

Koha has been installed in 4,049 libraries, spanning 5,689 facilities or branches. You can find out how Koha is used by different countries at librarytechnology.org/product/koha.

Koha is a comprehensive library management solution designed to streamline administrative tasks within libraries while fostering communication and engagement. It also serves as a digital library system, helping libraries catalog and disseminate e-resources.