Open source alternatives to ArcGIS

One project on starwire does the same job. Ranked by how much of what ArcGIS does each one covers, read from its README and website. Ties go to the most active.

What ArcGIS does

Make and style maps from geographic datacore
Spatial analysiscore
Desktop, web and mobile mapping apps
Basemaps and data layers
Field data collection
Dashboards and story maps

Each dot in the table is one job, in this order. Square dots are core jobs and count double. Full means yes, half means partly. "See the evidence" under a project shows the line behind each one. Coverage is what a project documents, not how well it works or how hard it is to move to. How we score this

Project	Covers	Stars	Commits, 12 weeks	Last release	Closed vs opened	Setup	License
GeoLibreBrowser, desktop, and mobile GIS app for mapping geospatial data	Replaces it94%	8.6k+177	971	today	100%	Install like an app	MIT
Covers all 2 core jobs. Partly: Dashboards and story maps.See the evidence Make and style maps from geographic datacoreYesStyle layers with categorized, graduated, expression, heatmap, and clustering renderers Spatial analysiscoreYes1,000+ geoprocessing tools Desktop, web and mobile mapping appsYesweb browser, on the desktop, on mobile Basemaps and data layersYesOpenFreeMap basemaps or a blank background Field data collectionYesField Collection for capturing point, line, and polygon observations Dashboards and story mapsPartlya field calculator, charts, statistics

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