Open Source Software Library

SageMath is a free open-source mathematics software system. The Pacific Institute for the Mathematical Sciences (PIMS), a consortium of Canadian universities, provides infrastructure and hosting for SageMath and has been a key institutional backer of open mathematical software in Canada.

OSGeo Canada (OSGeo Local Chapter) actively promotes and contributes to GeoServer and the broader open geospatial software stack. Natural Resources Canada and provincial governments use and contribute to GeoServer for publishing geospatial data through standard OGC web services.

QGIS is the leading free and open-source desktop GIS application. Canadian government agencies, universities, and environmental organizations are among the world's largest QGIS user communities. Natural Resources Canada, Parks Canada, and multiple provincial mapping agencies have contributed data, plugins, and development.

OSCAR EMR (Open Source Clinical Application Resource) is a Canadian-developed open-source electronic medical records system used by thousands of primary care physicians across Canada. Developed at McMaster University, it supports bilingual interfaces and Canadian-specific clinical workflows including OHIP billing.

A multimodal journey-planning engine widely used with Canadian public transit data and open standards.

Model of the Environment and Temperature of Roads, an open road-condition forecasting system developed by Environment and Climate Change Canada.