Open Source

Koha: The World's Leading
Open-Source Library System

The world's first free and open-source Integrated Library System (ILS) — now easier to run in the cloud on Amazon Web Services (AWS). Powering libraries worldwide since 1999.

Trusted by thousands of libraries worldwide

Built for Libraries, by Librarians

Open-source library system software that can now run in the cloud

Global Collaboration

Koha isn't just another library system—it's a global collaboration. Created and maintained by a community of librarians and developers, this open-source library management system reflects real library needs and evolves rapidly with new features, security updates, and global language support.

The name "Koha" comes from the Māori word for a gift, representing the project's open and collaborative spirit.

Continuous Development

  • Biannual feature releases
  • Monthly security and bugfix updates
  • Shared development and documentation
  • Worldwide support network

A History of Innovation

From small beginnings to global impact

1999

First Open-Source ILS

Koha becomes the world's first open-source Integrated Library System (ILS), developed in New Zealand for the Horowhenua Library Trust.

2000s

Global Adoption

Libraries worldwide begin adopting Koha, drawn by its open-source model, flexibility, and active community development.

2010s

Enterprise Features

Koha evolves to include enterprise-class features including REST APIs, advanced reporting, multilingual support for 30+ languages, and cloud-ready architecture.

Today

Koha in the Cloud

Koha powers tens of thousands of libraries globally. You can now run it in the cloud on AWS with reliable hosting, continuous development, and a thriving community of contributors.

Open-Source. No Vendor Lock-In.

True ownership of your library system and data

No Licensing Fees

Koha is fully open-source and licensed under the GNU General Public License (GPL). No software licensing fees, ever.

No Feature Restrictions

Access to the full Koha software with all modules and features. Our pricing tiers are based on infrastructure capacity, not software features.

No Vendor Dependency

No dependency on a single vendor. Run Koha yourself or choose from multiple support providers worldwide.

Full Customization

Complete access to source code allows unlimited customization and integration with your existing systems.

Data Ownership

Your data remains yours. Export, migrate, or backup anytime without restrictions or vendor approval.

Community Support

Join a global community of libraries, developers, and vendors collaborating to improve Koha.

About the Free Tier: The Free Tier is designed for evaluation, pilot projects, and training. It includes all core Koha features, with limits on bibliographic records and items. For ongoing production use, Standard and Enterprise provide a clearer path with a 30-day trial.

Enterprise-Class Library System Features

Comprehensive integrated library system software that can run in the cloud

All-in-One Web Interface

  • Staff portal for cataloging, circulation, and administration
  • Public catalog (OPAC - Online Public Access Catalog) for patron self-service
  • Mobile-ready access with no software installation

Standards Compliant

  • MARC21 and UNIMARC cataloging standards
  • Z39.50 client and server for catalog sharing
  • SIP2 (Standard Interchange Protocol) for self-checkout integration
  • NCIP for consortia integration

Advanced Search

  • Full-text search capabilities
  • Federated search across multiple sources
  • Custom search filters and facets

Reporting & Analytics

  • Custom report builder with SQL access
  • Pre-built circulation and acquisition reports
  • Data export in multiple formats

Multilingual Support

  • 30+ language translations
  • Multilingual catalog records
  • Right-to-left language support

Automated Communications

  • Email and SMS notifications
  • Overdue notices and holds alerts
  • Customizable notice templates

Label & Card Printing

  • Spine label printing
  • Barcode generation
  • Patron card printing

Extensibility

  • Community plugin system
  • REST API for integrations
  • Custom development support

Enterprise Cloud Ready

  • Run Koha in the cloud on AWS
  • Reliable hosting architecture
  • Institutional governance and security

Koha in the Cloud on AWS

Reliable cloud hosting for modern libraries

Guided Cloud Deployment

Deploy Koha in minutes using guided setup in your own AWS account for maximum control, governance, and security.

Fast deployment. Production-ready configurations. You own the account.

Enterprise Reliability Options

Enterprise adds higher-reliability cloud options for institutions that need stronger backup, recovery, and support for busy periods. It is designed for libraries that want more resilience than a single-server setup.

Learn About Koha on AWS

Affordable for All Libraries

Reliable cloud hosting at a fraction of traditional costs

Free Tier

Best for evaluation, pilot projects, and training. $0 software cost; AWS may require a payment method for the account.

Standard Tier

Production-ready for small to medium libraries with hourly or annual billing.

Enterprise

High availability infrastructure with auto-scaling and Aurora database.

All tiers include the complete Koha library system with identical features. Choose your tier based on infrastructure requirements, not software functionality.

View Full Pricing & Compare Tiers

Ready to Start?

Start with a 30-day trial or explore the Free Tier for testing