The best free alternative to QGIS is GRASS GIS, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to QGIS and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to QGIS are Overpass Turbo, Maptitude, Placemark and SAGA GIS.
GRASS GIS (Geographic Resources Analysis Support System) is an open source, free software (FOSS) Geographical Information System (GIS) with raster, topological, vector, image processing, and visualization functionality.
Most users think GRASS GIS is a great QGIS alternative.
GRASS GIS is the most popular Mac & Linux alternative to QGIS.
GRASS GIS is the most popular Open Source & free alternative to QGIS.
This is Overpass Turbo, a web-based data filtering tool for OpenStreetMap.
Overpass Turbo is the most popular Self-Hosted alternative to QGIS.
Business mapping software (geographic information system) that delivers affordable, easy-to-use, professional mapping tools for mapping in these sectors: franchising, health care, business, territories, site selection, sales, marketing, banking, more.
Maptitude is the most popular SaaS alternative to QGIS.
The Placemark application. This is a web application that lets you import, create, export, visualize, and publish geospatial data. It supports many geospatial data formats, and many editing operations, both algorithmic, like buffering, and drawing-based.
SAGA - System for Automated Geoscientific Analyses - is a Geographic Information System (GIS) software with immense capabilities for geodata processing and analysis. SAGA is programmed in the object oriented C++ language and supports the implementation of new functions with a...
Beautiful, User Friendly online mapping software that scales to big data.
The MapLarge API enables user-driven, low latency, interactive visual exploration and analysis of very large geospatial and non-geospatial data collections to recognize patterns and identify anomalies. Use.
gvSIG is a Geographic Information System (GIS), that is, a desktop application designed for capturing, storing, handling, analyzing and deploying any kind of referenced geographic information in order to solve complex management and planning problems.
The new standard for GIS software. Simple and powerful. Step into Atlas to explore, analyze and share geospatial data.
GeoNode is a web-based application and platform for developing geospatial information systems (GIS) and for deploying spatial data infrastructures (SDI).
Mobile app for Mergin Maps 📲. Open QGIS projects and manage vector data on your phone, even offline 📶 (Android/iOS/Windows app).
OpenJUMP is an open source Geographic Information System (GIS) written in the Java programming language. It is developed and maintained by a group of volunteers from around the globe.
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Equaly or even more powerful. The only downside is that it's native GUI has a learning curve. But it handles the processes way better.