GeoUtil.com is described as 'Free, browser-based map and geography toolkit. Measure distances and areas, convert coordinates, optimize GeoJSON/TopoJSON, and visualize spatial data — all quickly, accurately, and without installing any software' and is a GIS software in the travel & location category. There are five alternatives to GeoUtil.com, not only websites but also apps for a variety of platforms, including Android, Windows, Linux and Mac apps. The best GeoUtil.com alternative is QGIS, which is both free and Open Source. Other great sites and apps similar to GeoUtil.com are Mapbox Studio, ArcGIS, Atlas: GIS & Maps and Measure Maps.