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Open source projects and samples from Microsoft
README.md

Open Source at Microsoft

Get Involved

Right now, open communities are building amazing software together, and there are excellent "good first issue" opportunities, if you're looking to get involved.

Visit opensource.microsoft.com to learn more!

Microsoft projects adopt the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ.

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  1. vscode vscode Public

    Visual Studio Code

    TypeScript 193k 42.9k

  2. TypeScript TypeScript Public

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

    Go 111k 14.5k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that supercharge productivity and customization on Windows

    C 139k 8.6k

  4. terminal terminal Public

    The new Windows Terminal and the original Windows console host, all in the same place!

    C++ 105k 9.6k

  5. semantic-kernel semantic-kernel Public

    Integrate cutting-edge LLM technology quickly and easily into your apps

    C# 28.6k 4.8k

Repositories

Showing 10 of 8306 repositories
  • testfx Public

    This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

    microsoft/testfx's past year of commit activity
    C# 1,043 MIT 312 51 17 Updated Sep 21, 2026
  • CCF Public

    Confidential Consortium Framework

    microsoft/CCF's past year of commit activity
    C++ 876 Apache-2.0 260 36 18 Updated Sep 21, 2026
  • physical-ai-toolchain Public
    microsoft/physical-ai-toolchain's past year of commit activity
    Python 114 MIT 57 128 (1 issue needs help) 23 Updated Sep 21, 2026
  • SLG-Business-Applications Public

    A collection of Power Platform and Dynamics 365 resources, open-sourced to the State & Local Government community.

    microsoft/SLG-Business-Applications's past year of commit activity
    38 MIT 23 0 0 Updated Sep 21, 2026
  • react-native-macos Public Forked from react/react-native

    A framework for building native macOS apps with React.

    microsoft/react-native-macos's past year of commit activity
    C++ 4,385 MIT 26,294 86 (1 issue needs help) 18 Updated Sep 21, 2026
  • vscode-mssql Public

    Visual Studio Code SQL Server extension.

    microsoft/vscode-mssql's past year of commit activity
    TypeScript 1,906 612 191 21 Updated Sep 21, 2026
  • ai-diffusion-report Public

    Data and documentation for the Microsoft AI for Good Lab's AI Diffusion Reports

    microsoft/ai-diffusion-report's past year of commit activity
    21 MIT 6 1 0 Updated Sep 21, 2026
  • agent-governance-toolkit Public

    AI Agent Governance Toolkit — Policy enforcement, zero-trust identity, execution sandboxing, and reliability engineering for autonomous AI agents. Covers 10/10 OWASP Agentic Top 10.

    microsoft/agent-governance-toolkit's past year of commit activity
    Python 6,303 MIT 1,124 75 (7 issues need help) 66 Updated Sep 21, 2026
  • garnet Public

    Garnet is a remote cache-store from Microsoft Research that offers strong performance (throughput and latency), scalability, storage, recovery, cluster sharding, key migration, and replication features. Garnet can work with existing Redis clients.

    microsoft/garnet's past year of commit activity
    C# 12,023 MIT 703 34 (11 issues need help) 37 Updated Sep 21, 2026
  • scitt-ccf-ledger Public

    Supply Chain Integrity Transparency and Trust ledger application using Confidential Consortium Framework (CCF)

    microsoft/scitt-ccf-ledger's past year of commit activity
    Python 47 MIT 30 9 4 Updated Sep 21, 2026
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