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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 194k 45k

  2. TypeScript TypeScript Public

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

    Go 111k 16.3k

  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 9.7k

  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 8354 repositories
  • 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# 1,302 MIT 86 74 15 Updated Oct 10, 2026
  • fhir-server Public

    A service that implements the FHIR standard

    microsoft/fhir-server's past year of commit activity
    TSQL 1,386 MIT 596 97 (2 issues need help) 59 Updated Oct 10, 2026
  • MIDI Public

    Windows MIDI Services

    microsoft/MIDI's past year of commit activity
    C++ 690 MIT 75 54 0 Updated Oct 10, 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# 12,045 MIT 711 34 (11 issues need help) 33 Updated Oct 10, 2026
  • vscode-docs Public

    Public documentation for Visual Studio Code

    microsoft/vscode-docs's past year of commit activity
    Markdown 6,664 5,773 81 13 Updated Oct 10, 2026
  • agent-host-protocol Public

    Synchronized multi-client state for AI agent sessions

    microsoft/agent-host-protocol's past year of commit activity
    TypeScript 398 MIT 138 37 30 Updated Oct 10, 2026
  • aspire Public

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

    microsoft/aspire's past year of commit activity
    C# 6,357 MIT 1,008 2,284 (2 issues need help) 270 Updated Oct 10, 2026
  • windows-rs Public

    Rust for Windows

    microsoft/windows-rs's past year of commit activity
    Rust 12,812 Apache-2.0 678 44 0 Updated Oct 10, 2026
  • SynapseML Public

    Simple and Distributed Machine Learning Python Library porting ML algorithms for Spark

    microsoft/SynapseML's past year of commit activity
    Scala 5,244 MIT 868 137 (1 issue needs help) 5 Updated Oct 10, 2026
  • BCApps Public

    Repository for collaboration on Microsoft Dynamics 365 Business Central applications.

    microsoft/BCApps's past year of commit activity
    AL 697 MIT 473 265 510 Updated Oct 10, 2026
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