Run participatory-mapping (PPGIS) and citizen-science studies without enterprise costs. Participants pin locations, draw routes, and outline areas alongside structured questions; you get clean GeoJSON + CSV for QGIS, R, or Python. It's open source, so your instrument and pipeline are transparent and reproducible — and free, so a grant isn't a prerequisite.
Why researchers use it
Open-source code (AGPLv3) means the instrument and processing are auditable — good for methods sections, ethics review, and replication.
Points, lines, and polygons export as GeoJSON + CSV — straight into QGIS, R (sf), or Python (geopandas), no conversion.
Free to use and self-hostable — a fit for student projects, unfunded pilots, and NGOs in the Global South priced out of commercial PPGIS.
Host it yourself with Docker, or use the EU-hosted version — keep sensitive fieldwork data where your IRB/DPA requires.
Study types