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Open-source alternatives to ArcGIS Online

Compare community-driven replacements for ArcGIS Online in gis & mapping platforms workflows. We curate active, self-hostable options with transparent licensing so you can evaluate the right fit quickly.

ArcGIS Online logo

ArcGIS Online

ArcGIS Online is a cloud-based Geographic Information System (GIS) platform that allows users to create, analyze, and share interactive maps and spatial data. It provides access to a rich library of basemaps and spatial datasets, and tools for performing spatial analysis (like buffering, geocoding, routing). Users can upload their own data, style it, and build web maps and applications that can be shared within an organization or publicly. As part of Esri's ArcGIS ecosystem, ArcGIS Online integrates with desktop GIS tools and supports collaboration, making geospatial analysis and map publishing accessible via the web without managing server infrastructure.Read more
GIS & Mapping Platforms
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Key stats

  • 3Alternatives
  • 3Active development

    Recent commits in the last 6 months

Counts reflect projects currently indexed as alternatives to ArcGIS Online.

All open-source alternatives

GeoServer logo

GeoServer

Serve, share, and edit geospatial data via OGC standards

Active developmentFast to deployIntegration-friendlyJava

Why teams choose it

  • Full OGC compliance: WFS, WMS, WCS, CSW, and WPS
  • Supports a wide range of data sources and formats
  • Extensible plugin architecture for custom processing

Watch for

Requires a Java runtime, adding operational overhead

Migration highlight

National cadastral data publishing

Expose land parcel vectors via WFS for public and internal use

MapServer logo

MapServer

Powerful CGI engine for creating web‑based GIS maps and services

Active developmentIntegration-friendlyAI-powered workflowsC

Why teams choose it

  • Configurable CGI program for on‑the‑fly map rendering
  • Full OGC service support (WMS, WFS, WCS, SOS)
  • Broad data format compatibility via GDAL/OGR

Watch for

Requires CGI/web server setup and configuration

Migration highlight

Publish satellite imagery via WMS

Provides a standards‑compliant map service accessible by GIS clients and web applications.

QGIS logo

QGIS

Professional GIS platform for powerful spatial analysis and cartography

Active developmentFast to deployIntegration-friendlyC++

Why teams choose it

  • Unified support for raster, vector, mesh, and point‑cloud formats
  • 500+ color ramps and advanced symbology for high‑quality 2D/3D maps
  • 200+ native processing algorithms plus 1000+ via GDAL, SAGA, GRASS

Watch for

Steeper learning curve for advanced analysis workflows

Migration highlight

Environmental impact assessment

Combine satellite raster, vector habitats, and temporal data to model and visualize ecosystem changes

Choosing a gis & mapping platforms alternative

Teams replacing ArcGIS Online in gis & mapping platforms workflows typically weigh self-hosting needs, integration coverage, and licensing obligations.

  • 3 options are actively maintained with recent commits.

Tip: shortlist one hosted and one self-hosted option so stakeholders can compare trade-offs before migrating away from ArcGIS Online.