Open.
Collaborative.
Flexible.
Open Source enables Microsoft products and services to bring choice, technology and community to our customers.
Projects
Some of the most popular developer tools, frameworks and experiences in the world are built around open communities. Here are a few featured Microsoft projects of note.
Accessibility Insights
Accessibility Insights is a suite of open source tools that help developers find and fix accessibility issues in Web, Windows and Android applications.
CNAB
CNAB is a spec for packaging distributed apps
Windows Terminal
The new Windows Terminal and the original Windows console host, all in the same place!
Microsoft's communities Get involved
We are building value together and welcome everyone to participate. Together, in the open, it's an exciting time to use technology to build hacks, apps, and services.
Learn from our enterprise-scale approach Our program & tools
We have worked to develop a strong open source program over the past decade, making it easy for every team at Microsoft to choose to use, contribute to, and release open source software.
Many of our tools and approaches are available for you to learn from, too.
Open Source Updates
Microsoft joins Open Source Security Foundation
CTO, Microsoft Azure
Microsoft is joining industry partners to create the Open Source Security Foundation (OpenSSF), a new cross-industry collaboration hosted at the Linux Foundation. Microsoft is proud to be a founding member alongside GitHub, Google, IBM, JPMC, NCC Group, OWASP Foundation, and Red Hat.
Helm, the package manager for Kubernetes, now a CNCF graduated project
Corporate Vice President, Microsoft Azure
The Helm project has graduated to the Cloud Native Computing Foundation (CNCF), joining a select group of projects that the CNCF recognizes for achieving majority adoption by the cloud-native community.
Microsoft announces OpenChain 2.0 conformance for open source
Assistant General Counsel
Microsoft’s open source program is OpenChain 2.0 comformant. Trust is key to open source. Developers should be able to trust users to respect their licensing choices. And when you receive software, you should be able to trust that the open source licenses were followed.
exFAT in the Linux kernel? Yes!
Distinguished Engineer
Microsoft is supporting the addition of Microsoft’s exFAT technology to the Linux kernel. exFAT is the Microsoft-developed file system that’s used in Windows and in many types of storage devices like SD Cards and USB flash drives.
Community Resources
We welcome you to our open communities. Please check out our Code of Conduct and one-time Contributor License Agreement to help us all participate with care.
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