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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 42.5k

  2. TypeScript TypeScript Public

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

    Go 111k 14.2k

  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 8309 repositories
  • typescript-error-deltas Public

    Test popular repos on new versions of TypeScript: display new compiler errors

    microsoft/typescript-error-deltas's past year of commit activity
    TypeScript 29 MIT 14 3 1 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# 6,310 MIT 991 2,111 (3 issues need help) 272 Updated Sep 17, 2026
  • Oryx Public

    Build your repo automatically.

    microsoft/Oryx's past year of commit activity
    C# 881 195 87 113 Updated Sep 17, 2026
  • FlowQuery Public

    A declarative OpenCypher-based query language for virtual graphs and data processing pipelines.

    microsoft/FlowQuery's past year of commit activity
    TypeScript 12 MIT 5 0 1 Updated Sep 17, 2026
  • sqltoolsservice Public

    SQL Tools API service that provides SQL Server data management capabilities.

    microsoft/sqltoolsservice's past year of commit activity
    C# 508 170 65 5 Updated Sep 17, 2026
  • microsoft-ui-reactor Public

    Reactor is an experimental set of extensions to WinUI

    microsoft/microsoft-ui-reactor's past year of commit activity
    C# 645 MIT 54 70 12 Updated Sep 17, 2026
  • WSL Public

    Windows Subsystem for Linux

    microsoft/WSL's past year of commit activity
    C++ 33,724 MIT 1,827 927 55 Updated Sep 17, 2026
  • integrity-vhd Public

    Tooling to deterministically convert tar files in to files systems with integrity information.

    microsoft/integrity-vhd's past year of commit activity
    Go 9 4 3 8 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 111,093 Apache-2.0 14,168 4,933 (838 issues need help) 138 Updated Sep 17, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode's past year of commit activity
    TypeScript 192,639 MIT 42,529 5,000+ (473 issues need help) 2,685 Updated Sep 18, 2026
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