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Libraries · head to head

Evergreen ILS vs GRASS GIS

Evergreen ILS logo

Evergreen ILS

Libraries

Highly scalable open source library software

From
Free
Rated
-
Full reviewWebsite
GRASS GIS logo

GRASS GIS

Maps

Long-running open source geospatial analysis engine for raster, vector and terrain processing

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Evergreen ILS server installation is supported only on Debian 10, 11, 12 and 13 and Ubuntu 22.04 and 24.04; GRASS GIS the location and mapset data model requires importing data into a structured database with a fixed coordinate system before analysis, which is a real barrier for anyone used to opening files directly.
  • They diverge on capability: Evergreen ILS covers Circulation management, GRASS GIS covers Raster analysis.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Evergreen ILS and GRASS GIS actually diverge.

Attributes where Evergreen ILS and GRASS GIS differ
AttributeEvergreen ILSGRASS GIS
Pricing modelopen-sourceOpen source, no licence fee
PlatformsWeb, Desktop, ApiLinux, Windows, macOS
CategoryLibrariesMaps
Founded2006Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Evergreen ILS

  • Circulation management
  • MARC cataloging
  • Acquisitions
  • Serials management
  • OPAC with faceted search
  • Patron management
  • Offline circulation
  • Consortia support

Only in GRASS GIS

  • Raster analysis
  • Hydrological modelling
  • Terrain analysis
  • Vector topology
  • Temporal framework
  • Image processing
  • Python API
  • QGIS integration

What people use each for

The jobs each tool is most often brought in to do.

Evergreen ILS

  • Running a consortium-scale library catalogue and circulation systemnot GRASS GIS
  • Self-hosting an open source integrated library system across multiple branchesnot GRASS GIS

GRASS GIS

  • A hydrologist delineating watersheds and modelling flow accumulation over a large digital elevation modelnot Evergreen ILS
  • A research group building a reproducible time series analysis of satellite imagery that must be rerunnable years laternot Evergreen ILS
  • An environmental agency running viewshed and solar radiation analysis for planning assessments without buying commercial GIS seatsnot Evergreen ILS
  • A QGIS user who needs a specific processing algorithm that only exists in the GRASS toolboxnot Evergreen ILS

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Evergreen ILS

  • Server installation is supported only on Debian 10, 11, 12 and 13 and Ubuntu 22.04 and 24.04
  • PostgreSQL 14 is the minimum supported version
  • OpenSRF 3.3.0 or later must be installed separately before Evergreen itself
  • Installation is a manual multi-service process requiring a dedicated PostgreSQL superuser account and shell access

GRASS GIS

  • The location and mapset data model requires importing data into a structured database with a fixed coordinate system before analysis, which is a real barrier for anyone used to opening files directly.
  • The native graphical interface is dated and inconsistent compared with QGIS or ArcGIS, so most users end up running GRASS through QGIS and never learn the tool they are actually depending on.
  • There is no vendor, so contractual support, service levels and liability do not exist by default and must be arranged with an independent consultancy that may not cover your jurisdiction.
  • Cartographic output and map layout are weak relative to the analysis capability, meaning a second tool is always needed to produce a publishable map.
  • Module naming and argument conventions are idiosyncratic and long-standing, so scripts are durable but the learning curve is steep and transferable skills from other GIS packages help less than expected.

Pricing, plan by plan

Evergreen ILS

Free
  • Self-HostedFree
    • Full ILS functionality
    • Circulation system
    • OPAC
  • Hosted (via partners)$200/month
    • Everything in Self-Hosted
    • Managed hosting
    • Professional support

GRASS GIS

Free
  • GRASS GISFree
    • GNU GPL licence
    • All modules included
    • No user or seat limits

Which should you pick?

Choose Evergreen ILS if

  • You need circulation management.
  • You want to start without paying.
  • You work on Web, Desktop, Api.
  • You also want marc cataloging.
Evergreen ILS review

Choose GRASS GIS if

  • You need raster analysis.
  • You want to start without paying.
  • You work on Linux, Windows, macOS.
  • You also want hydrological modelling.
GRASS GIS review

Questions people ask

Is Evergreen ILS or GRASS GIS better?
Neither clearly leads. Evergreen ILS starts at Free and GRASS GIS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Evergreen ILS or GRASS GIS?
Evergreen ILS starts at Free and GRASS GIS at Free.
Does Evergreen ILS or GRASS GIS run on more platforms?
Evergreen ILS runs on Web, Desktop, Api. GRASS GIS runs on Linux, Windows, macOS.
Can I use Evergreen ILS for free?
Both have a free tier, so you can try either at no cost before committing.
What is Evergreen ILS best used for?
Evergreen ILS is most often used for running a consortium-scale library catalogue and circulation system, self-hosting an open source integrated library system across multiple branches. Of those, running a consortium-scale library catalogue and circulation system and self-hosting an open source integrated library system across multiple branches are not what GRASS GIS is typically brought in for.
What can Evergreen ILS do that GRASS GIS cannot?
Evergreen ILS covers Circulation management, MARC cataloging, Acquisitions, Serials management. GRASS GIS covers Raster analysis, Hydrological modelling, Terrain analysis, Vector topology.

Answered from the vendors’ own pages

Evergreen ILS: Is Evergreen ILS free?

Yes, Evergreen ILS is a free open source library management system. The software is available at no cost for libraries and organizations to install, deploy, and customize according to their needs.

Source
GRASS GIS: Who maintains GRASS GIS?

An international volunteer and academic developer community under the Open Source Geospatial Foundation. It originated at the US Army Construction Engineering Research Laboratory in 1982.

Evergreen ILS: Does Evergreen ILS offer commercial support or hosting?

Evergreen ILS website does not list commercial hosting or support services. As an open source project, it relies on community contributions and institutional deployments. Libraries may arrange custom support through integrators or consultants, but no official commercial offerings are detailed on the website.

Source
GRASS GIS: Can I buy commercial support?

Not from a vendor. Independent consultancies in the OSGeo ecosystem offer paid support and development, and availability varies by region.

GRASS GIS: Do I need to use its interface?

No. Most people run GRASS algorithms through the QGIS processing toolbox or from Python.

GRASS GIS: Is it suitable for production use?

Yes for analysis pipelines, and it is used by agencies and research institutions. Plan for community support rather than a service level agreement.

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