What is GeoServer used for?

GeoServer is an open-source Java server for sharing and editing geospatial data over open standards, with reference implementations of OGC WFS and WCS. It is a good fit for publishing maps and spatial data on the web, sharing geospatial datasets via open standards, and editing geospatial features over WFS.

Is GeoServer open source?

Yes. GeoServer is open source under a custom licence. Its source code is on GitHub at geoserver/geoserver and is written mainly in Java.

Yes. GeoServer is open source, so the software itself is free to use under the terms of its own licence.

Can I self-host GeoServer?

Yes. GeoServer can be self-hosted on your own server or infrastructure.

What is GeoServer an alternative to?

GeoServer is an open-source alternative to ArcGIS. Other open-source alternatives to ArcGIS include QGIS.

Is GeoServer actively maintained?

Yes. The most recent commit to GeoServer was on 2 October 2026, and the latest release is 3.0.1, published on 14 August 2026. The project has 4.5k stars on GitHub.

GeoServer: open-source alternative to ArcGIS

About GeoServer

GeoServer is an open-source server written in Java that lets users share and edit geospatial data. It serves data from the common spatial data sources through open standards, which keeps it interoperable with other geospatial software.

GeoServer is the reference implementation of the Open Geospatial Consortium's Web Feature Service and Web Coverage Service standards, and offers a certified compliant Web Map Service. It also implements OGC API - Features, Catalog Service for the Web and Web Processing Service. Supported formats include GeoPackage and GeoTIFF as reference implementation, plus GML and Shapefile.

GeoServer is community-driven, developed and supported by individuals and organizations around the world, and is licensed under the GPL. It builds with Apache Maven, the user guide and developer guide explain installation and development, documentation is written in Markdown with MkDocs, and issues are tracked in JIRA.

Key features

OGC WMS, WFS and WCS services
OGC API - Features support
Catalog Service for the Web
Web Processing Service
GeoPackage, GeoTIFF, GML and Shapefile formats
Publishes data from major spatial sources

Good fit for

→Publishing maps and spatial data on the web
→Sharing geospatial datasets via open standards
→Editing geospatial features over WFS

Built with: Java
Tags: geospatial; gis; wms; wfs; wcs; mapping; ogc; java

GeoServer: questions and answers

What is GeoServer used for?: GeoServer is an open-source Java server for sharing and editing geospatial data over open standards, with reference implementations of OGC WFS and WCS. It is a good fit for publishing maps and spatial data on the web, sharing geospatial datasets via open standards, and editing geospatial features over WFS.
Is GeoServer open source?: Yes. GeoServer is open source under a custom licence. Its source code is on GitHub at geoserver/geoserver and is written mainly in Java.
Is GeoServer free?: Yes. GeoServer is open source, so the software itself is free to use under the terms of its own licence.
Can I self-host GeoServer?: Yes. GeoServer can be self-hosted on your own server or infrastructure.
What is GeoServer an alternative to?: GeoServer is an open-source alternative to ArcGIS. Other open-source alternatives to ArcGIS include QGIS.
Is GeoServer actively maintained?: Yes. The most recent commit to GeoServer was on 2 October 2026, and the latest release is 3.0.1, published on 14 August 2026. The project has 4.5k stars on GitHub.