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Open source projects and samples from Microsoft
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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 181k 37.4k

  2. TypeScript TypeScript Public

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

    TypeScript 107k 13.2k

  3. PowerToys PowerToys Public

    Microsoft PowerToys is a collection of utilities that help you customize Windows and streamline everyday tasks

    C# 128k 7.6k

  4. terminal terminal Public

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

    C++ 101k 9k

  5. semantic-kernel semantic-kernel Public

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

    C# 27k 4.4k

Repositories

Showing 10 of 7491 repositories
  • vscode-fabric Public

    Microsoft Fabric extension for VS Code

    microsoft/vscode-fabric’s past year of commit activity
    TypeScript 32 MIT 7 11 5 Updated Jan 15, 2026
  • MCAPSTechConnect26-LAB483 Public

    The repository for the lab titled "Building powerful agents with the Microsoft 365 Agent SDK" at MCAPS Tech Connect 2026

    microsoft/MCAPSTechConnect26-LAB483’s past year of commit activity
    C# 0 MIT 0 0 0 Updated Jan 15, 2026
  • qdk Public

    Azure Quantum Development Kit, including the Q# programming language, resource estimator, and Quantum Katas

    microsoft/qdk’s past year of commit activity
    Rust 827 MIT 161 147 (1 issue needs help) 12 Updated Jan 15, 2026
  • vscode-copilot-chat Public

    Copilot Chat extension for VS Code

    microsoft/vscode-copilot-chat’s past year of commit activity
    TypeScript 9,279 MIT 1,570 0 133 Updated Jan 15, 2026
  • omnichannel-chat-widget Public

    Omnichannel Live Chat Widget UI Components offers a re-usable component-based library to help create a custom chat widget that can be connected to the Dynamics 365 Customer Service experience.

    microsoft/omnichannel-chat-widget’s past year of commit activity
    TypeScript 64 MIT 67 3 14 Updated Jan 15, 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# 11,665 MIT 632 23 (13 issues need help) 15 Updated Jan 15, 2026
  • fabric-analytics-roadshow-lab Public
    microsoft/fabric-analytics-roadshow-lab’s past year of commit activity
    Jupyter Notebook 0 MIT 1 5 0 Updated Jan 15, 2026
  • DiskANN Public

    Graph-structured Indices for Scalable, Fast, Fresh and Filtered Approximate Nearest Neighbor Search

    microsoft/DiskANN’s past year of commit activity
    Rust 1,638 MIT 366 138 (10 issues need help) 81 Updated Jan 15, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 180,693 MIT 37,405 5,000+ (542 issues need help) 975 Updated Jan 15, 2026
  • playwright-mcp Public

    Playwright MCP server

    microsoft/playwright-mcp’s past year of commit activity
    TypeScript 25,611 Apache-2.0 2,080 38 4 Updated Jan 15, 2026
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