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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 42.4k

  2. TypeScript TypeScript Public

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

    Go 111k 14.1k

  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 8305 repositories
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs's past year of commit activity
    11,085 MIT 9,620 1,297 2,394 Updated Sep 17, 2026
  • onnxruntime Public

    ONNX Runtime: cross-platform, high performance ML inferencing and training accelerator

    microsoft/onnxruntime's past year of commit activity
    C++ 21,867 MIT 4,233 849 905 Updated Sep 17, 2026
  • TypeScript Public

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

    microsoft/TypeScript's past year of commit activity
    Go 111,076 Apache-2.0 14,093 4,933 (838 issues need help) 134 Updated Sep 17, 2026
  • site-admin Public

    An automation tool for tenant admins to use for automation of features/enhancements.

    microsoft/site-admin's past year of commit activity
    TypeScript 16 MIT 8 11 2 Updated Sep 17, 2026
  • agent-framework Public

    A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

    microsoft/agent-framework's past year of commit activity
    Python 13,551 MIT 2,330 486 108 Updated Sep 17, 2026
  • typespec Public
    microsoft/typespec's past year of commit activity
    Java 5,858 MIT 394 1,006 (2 issues need help) 55 Updated Sep 17, 2026
  • aspire Public

    Aspire is the tool for code-first, extensible, observable dev and deploy.

    microsoft/aspire's past year of commit activity
    C# 6,309 MIT 991 2,105 (3 issues need help) 270 Updated Sep 17, 2026
  • noc-agent-a365-iqs Public

    NOC/NOA Microsoft IQ demo: single MAF agent on Agent 365, wiring Foundry IQ + Fabric IQ + Web IQ + Work IQ via one Foundry Toolbox MCP endpoint. Forked/adapted from PathfinderIQ-Demo-Version.

    microsoft/noc-agent-a365-iqs's past year of commit activity
    Python 0 MIT 1 0 1 Updated Sep 17, 2026
  • go-infra Public

    Infrastructure supporting the use of Go in Microsoft

    microsoft/go-infra's past year of commit activity
    Go 43 MIT 15 0 2 Updated Sep 17, 2026
  • winappCli Public

    winapp, the Windows App Development CLI, is a single command-line interface for managing Windows SDKs, packaging, generating app identity, manifests, certificates, and using build tools with any app framework.

    microsoft/winappCli's past year of commit activity
    C# 1,257 MIT 79 65 15 Updated Sep 17, 2026
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