The Linux Foundation launched the Open Health Stack Software Foundation (OHS-SF) on Thursday, backed by a $3 million grant from Google and support from the World Health Organization, Microsoft, Anthropic, and others. The new vendor-neutral, community-governed foundation aims to give developers open-source tools to build AI-enabled health systems on standards-based infrastructure, addressing the fragmentation that has long plagued digital health.
Three technical pillars
OHS-SF will be built around three primary components:
- Core HL7 FHIR foundations, providing a standards-based data exchange layer.
- The "OHS Player," a multiplatform reference toolkit designed for local deployments.
- The AI Commons, a neutral, model-agnostic space co-developed with the WHO for enabling safe, effective, and verifiable AI in global health.
As AI for Healthcare continues to advance, this commons aims to ensure AI tools are built openly and responsibly.
"Open source has already transformed enterprise software, cloud computing and AI, and it will do the same for how the world delivers care," said Linux Foundation CEO Jim Zemlin. He added that the foundation "brings together the global community of developers, health organizations, and implementers under a vendor-neutral, community-governed home, ensuring that the tools powering tomorrow's AI-enabled health systems are built in the open, for everyone."
Global support and inclusive governance
Initial supporters include Argusoft, Anthropic, the Asia eHealth Information Network, the Center for Global Digital Health Innovation at Johns Hopkins Bloomberg School of Public Health, the Clinton Health Access Initiative, Google, Medtronic Labs, Microsoft, and the WHO. To close health equity gaps, OHS-SF is introducing an implementer program that allows small businesses, local consulting firms, and pre-revenue startups from low- and middle-income countries to participate directly in governance without financial barriers.
Google Research Vice President Kat Chou said the project was built to put developers and community health workers "back at the center of development and give them access to world-class tools for building next-gen digital health solutions." She added that contributing OHS to the Linux Foundation, with WHO's support, ensures these building blocks will evolve "under governance that reflects the diversity of the communities they serve."
Why this matters for healthcare professionals
Smisha Agarwal, director of the Center for Global Digital Health Innovation at Johns Hopkins, said, "Standards-based, modular open architecture is what allows countries to own and operate their digital health stack end-to-end, without depending on external systems they can't easily adapt or maintain." She noted that this technical autonomy shortens the path from prototype to deployment, lowers implementation risk, and opens the door for local private sector engagement. For healthcare professionals, OHS-SF signals a shift toward interoperable, community-driven tools that could accelerate the adoption of AI in clinical and public health settings. Developers and health organizations can explore the resources at ohs.foundation and github.com/ohs-foundation.
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