This task sheet presents an open source workflow that uses crowd-sourced data from OpenStreetMap (OSM) to create GeoJSON files that can be used on web mapping platforms like leaflet or mapbox. Using free QGIS software, users can download data from OSM, and then filter and edit it within the QGIS environment. The data can be used for analysis, in map layouts, or exported to various file formats, including GeoJSON.