Top 10 Free and Open-Source Library Software in 2025

Managing a library’s collection, checking out books, and keeping track of everything can be challenging. Fortunately, there are plenty of free and open-source library management systems (LMS) available to make library work easier. These systems not only save money but also allow you to customize them to meet your library’s specific needs. Here are 10 of the best free and open-source library software.

1. Koha

Koha, an open-source library management system, is widely used by libraries of all sizes, from small community libraries to large academic institutions.

  • Key Features:
    • Easy-to-use online catalog (OPAC).
    • Manage cataloguing, circulation, and patron details.
    • Support for different formats like MARC.
    • Works in multiple languages.

Why Choose Koha? If you’re searching for a powerful and versatile system that can handle all aspects of library automation, Koha is an excellent choice. It’s especially useful if your library is expanding and you require a system that can scale with it.

2. Evergreen

Evergreen is another well-known open-source library system. It is utilized in over 2,000 libraries worldwide and is ideal for managing huge collections or several library branches.

  • Key Features:
    • A simple, web-based interface for easy use.
    • Comprehensive tools for managing catalogue, patrons, and circulation.
    • Reports and statistics to help you track library usage.

Why Choose Evergreen? Evergreen is ideal for larger libraries or those with multiple branches. It’s easy to expand and provides lots of options for managing resources.


3. OPALS (Open Public Access Library System)

OPALS  is a user-friendly, open-source library software that works for all types of libraries, especially public libraries. It’s an excellent choice if you are seeking a system that is easy to install and adaptable enough to grow with your library’s demands.

  • Key Features:
    • Works on Windows, Mac, and Linux.
    • Easy to set up and start using quickly.
    • Customizable features to suit your library’s needs.

Why Choose OPALS? If you want something simple to install and use, OPALS is a great option. It’s especially helpful for small to medium libraries that want flexibility.

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4. NewGenLib

NewGenLib is a modern, open-source library system that works well for both smaller and larger libraries. It’s totally web-based, so you can access it from anywhere, and it even works on mobile devices.

  • Key Features:
    • Fully web-based, so no need for installation on local servers.
    • Easy to manage books, patrons, and transactions.
    • Supports a wide range of formats and languages.

Why Choose NewGenLib? If you need an automation solution that works on mobile devices and doesn’t require significant setup, NewGenLib could be the appropriate choice for your library.


5. SLiMS (Senayan Library Management System)

SLiMS is a free and open-source library system that provides a lot of customization options. It is being used by libraries in several countries and is known for being easy to use and according to the needs of small and medium-sized libraries.

  • Key Features:
    • Web-based OPAC for users to search for books.
    • Tools for cataloging, circulation, and acquisitions.
    • Multi-language support.

Why Choose SLiMS? If you require a system that you can quickly adopt and customized, SLiMS is a wonderful solution. It’s good for libraries that want a bit more flexibility over how the system works.


6. PMB (PhpMyBibli)

PMB is a free and open-source library software used largely in French-speaking nations but also available to libraries around the world. It’s easy to install and gives a complete range of tools to administer a library.

  • Key Features:
    • Web-based and easy to use.
    • Handles cataloguing, circulation, and patron management.
    • Offers multi-language support.

Why Choose PMB? PMB is ideal if you want an uncomplicated, easy-to-use solution that gets the job done without requiring a lot of technical expertise.


7. OpenBiblio

OpenBiblio is an easy-to-use open-source library system, especially perfect for smaller libraries. It’s not as complex as some of the other systems but yet includes all the basic functionality you need.

  • Key Features:
    • Simple cataloguing and circulation management.
    • Basic OPAC for online catalogue searches.
    • Small footprint, meaning it’s easy to install and manage.

Why Choose OpenBiblio? If your library is modest or you’re just starting out, OpenBiblio offers a basic option without a high learning curve.


8. ABCD (Automated Library and Documentation System)

ABCD is designed for small to mid-sized libraries, documentation centers, and academic institutions. It offers a wide range of library management tools and is flexible enough to handle different types of library tasks.

  • Key Features:
    • Customizable cataloging options.
    • Support for shared cataloging.
    • Multi-language support.

Why Choose ABCD? ABCD is great for libraries that need a flexible, lightweight system that can be customized to suit their specific needs, especially if you’re dealing with multiple types of media or resources.


9. BiblioQ

BiblioQ is another open-source software used for automating libraries. It’s especially good for smaller libraries or archives looking for a simple system to manage their collection.

  • Key Features:
    • Supports multiple languages.
    • Can fetch book metadata from Amazon.
    • Simple cataloging tools for books and journals.

Why Choose BiblioQ? If you’re managing a small library or archive and need a basic system with essential features like cataloging and metadata retrieval, BiblioQ is an easy-to-use option.


10. Inlis Lite

Inlis Lite is a lightweight, free library automation software designed for small libraries. It’s perfect for those who need a basic, no-fuss system to handle cataloging and circulation.

  • Key Features:
    • Simple and easy-to-use interface.
    • Works for cataloging and circulation management.
    • Lightweight and easy to set up.

Why Choose Inlis Lite? If you have a smaller library and just require simple library management tools without the complexity, Inlis Lite is an ideal solution.


Conclusion

If you’re looking for a library software system that’s both free and open source, these 10 systems offer great options for libraries of all sizes. Whether you need a simple cataloging system or a fully-featured library management system, there’s an open-source solution that can fit your needs.

The best part? These systems are customizable, cost-effective, and come with active communities that can help you every step of the way. So, take your pick based on your library’s size and requirements, and get started on modernizing your library management today!

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