This is Overpass Turbo, a web-based data filtering tool for OpenStreetMap.

The best open source alternative to QGIS is Overpass Turbo. If that doesn't suit you, our users have ranked more than 50 alternatives to QGIS and 17 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to QGIS are GRASS GIS, SAGA GIS, Placemark and GeoNode.
This is Overpass Turbo, a web-based data filtering tool for OpenStreetMap.

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.



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...


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.

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.



uDig is a GIS software program produced by a community led by Canadian-based consulting company Refractions Research. It is based on the Eclipse platform and features full layered open source GIS. It is written in Java and released under GNU Lesser General Public License.


MapServer is an Open Source platform for publishing spatial data and interactive mapping applications to the web. Originally developed in the mid-1990’s at the University of Minnesota, MapServer is released under an MIT-style license, and runs on all major platforms (Windows...
MapWindow is a fully free and open source geographic information system project. It includes an open source programming component, MapWinGIS ActiveX, and an extensible desktop application that supports plug-ins written in .NET (C# and VB.NET).

Mapnik is a Free Toolkit for developing mapping applications. Above all Mapnik is about making beautiful maps. It is easily extensible and suitable for both desktop and web development. - C++/Python GIS...
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.