QGIS is a software that can be used to create map images into digital format such as vectors/raster layers. QGIS is often used as software to support information system activities regarding a Geographic/Region.
QGIS software is included in open source software type, everyone can contribute to developing it through QGIS Github. Because it is open and free this software is widely chosen by various companies to create maps of geographic information systems.
QGIS can run on Multiple Platforms, starting from Windows, MacOS, Linux, and also FreeBSD. QGIS installer there is an offline there is also an online installer. Below is QGIS software that you can download with offline installer type.