Open Source Software Library

Mattermost is an open-source, self-hostable online chat service with file sharing, search, and integrations. Designed as an alternative to Slack, it was founded by a Canadian-led team and is widely used by enterprises and governments for secure communications.

The Digital Research Alliance of Canada (formerly Compute Canada) manages national HPC clusters running customized Slurm workload manager configurations and contributes open-source tooling for scientific computing. Their open-source stack powers university research across the country.

OpenHMD is a free and open-source API and drivers for immersive technology such as head-mounted displays (VR/AR). Canadian developers have been central contributors, and the project supports a wide range of VR headsets on Linux.

Open edX is the open-source platform powering edX and hundreds of university MOOC programs. Canadian institutions including University of Toronto, UBC, and McGill have contributed significantly to its development and deploy it for online learning.

LibreOffice is the world's leading free and open-source office suite. Canada's open-source community has long championed LibreOffice adoption, and Canadian contributors actively participate in development, translation into French, and accessibility improvements.

The National Research Council of Canada (NRC) publishes numerous open-source tools and datasets for materials science, climate modelling, construction standards, and aerospace research. Their open-data and open-software initiatives are publicly available via the Government of Canada's open resource portal.