Evergreen ILS
Library management systems
Education software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
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What is Evergreen ILS
Evergreen ILS is an open-source integrated library system (ILS) used to manage core library operations such as cataloging, circulation, patron accounts, and holds. It is commonly deployed by public library systems and consortia that need shared workflows and a union catalog across multiple branches or member libraries. The platform is typically implemented and supported through a combination of in-house IT teams and third-party service providers rather than a single proprietary vendor. Evergreen’s differentiating characteristics include its open-source licensing and its consortium-oriented architecture.
Open-source licensing and control
Evergreen ILS is released as open-source software, which allows libraries to inspect, modify, and extend the code. This can reduce dependency on a single proprietary vendor for roadmap decisions and long-term access to the platform. Organizations can choose among multiple support and hosting partners or run the system internally. The model can be attractive for consortia that want shared governance over features and policies.
Consortium and multi-branch support
Evergreen is widely used in multi-branch and consortium environments where multiple libraries share a catalog and circulation rules. It supports centralized patron management, holds, and resource sharing across participating locations. This structure aligns well with regional systems that need consistent workflows while still allowing local policy variation. The architecture is designed for high transaction volumes typical of larger public library networks.
Standards-based library workflows
Evergreen supports common ILS functions such as cataloging, circulation, patron records, and reporting in a standards-oriented library context. Libraries can integrate it with other systems using established library protocols and APIs, depending on the deployment and configuration. This helps organizations connect discovery layers, authentication, and third-party services without being limited to a single vendor ecosystem. The open ecosystem can be useful when libraries maintain a mixed technology stack.
Implementation complexity and resourcing
Evergreen deployments often require more technical planning than turnkey, single-vendor hosted systems. Libraries may need in-house expertise or a contracted service provider for installation, upgrades, performance tuning, and integrations. The effort can increase for consortia with complex circulation policies and data migration requirements. Total cost and timelines depend heavily on the chosen support model.
User experience varies by setup
Staff and patron-facing experiences can vary depending on the version, configuration, and any added discovery layer or custom interface work. Some organizations may need additional development to meet specific usability expectations or to modernize workflows. Training and change management can be more involved when interfaces differ from widely standardized proprietary suites. Consistency across member libraries may require governance and configuration discipline.
No single accountable vendor
Because Evergreen is open source, there is not inherently one manufacturer responsible for product direction, support, and service levels. Libraries must select a support provider (or self-support) and manage vendor relationships accordingly. This can complicate procurement for organizations that prefer a single contract covering software, hosting, and support. Responsibility for security patching and upgrade cadence may also be distributed across internal teams and partners.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Evergreen ILS (open-source software) | Free (GPLv2 or later) | Full source code and installers available for download; self-hosted; no license/subscription required. See Downloads and documentation on the Evergreen Project site. |
| Evergreen Project - Individual Membership | $100 per year | Individual-level membership in The Evergreen Project (benefits: 20% conference registration discount, voting rights, webinar access). |
| Evergreen Project - Institutional: Copper | $500 per year | Institutional membership benefits (conference discounts, website credit, webinar access, one individual membership seat). |
| Evergreen Project - Institutional: Silver | $1,000 per year | Copper benefits plus e-badge for member use. |
| Evergreen Project - Institutional: Gold | $5,000 per year | Silver benefits plus additional individual memberships and exhibit/registration discounts. |
| Evergreen Project - Institutional: Platinum | $10,000 per year | Gold benefits plus greater recognition, webinar sponsorship slot, conference sponsorship discounts. |
| Evergreen Project - Institutional: Sustaining | $20,000 per year | All Platinum benefits plus additional support recognition. |
| Service Provider Add-on | $500 (add-on, annual) | Add-on for providers of Evergreen hosting/development; must be added to an individual or institutional membership. |
| Partner Members | $1,000 per year | For third-party vendors that integrate with Evergreen (listing on site, conference showcase opportunity). |
