Skip to content
@microsoft

Microsoft

Open source projects and samples from Microsoft

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.

Pinned Loading

  1. vscode vscode Public

    Visual Studio Code

    TypeScript 195k 44.4k

  2. TypeScript TypeScript Public

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

    Go 112k 15.4k

  3. PowerToys PowerToys Public

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

    C 141k 8.7k

  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# 28.7k 4.9k

Repositories

Showing 10 of 8432 repositories
  • aspire-samples Public

    Browse the sample apps demonstrating Aspire integration across C#, JavaScript, TypeScript, Python, Go, containers, databases, cloud, AI, and observability scenarios.

    microsoft/aspire-samples's past year of commit activity
    C# 1,201 MIT 347 89 25 Updated Nov 5, 2026
  • STL Public

    MSVC's implementation of the C++ Standard Library.

    microsoft/STL's past year of commit activity
  • cpp_client_telemetry Public

    1DS C++ SDK

    microsoft/cpp_client_telemetry's past year of commit activity
    C 104 Apache-2.0 69 101 (6 issues need help) 16 Updated Nov 5, 2026
  • PageTour-SDK Public

    A lightweight Typescript SDK for making tours on a web page

    microsoft/PageTour-SDK's past year of commit activity
    TypeScript 23 MIT 12 2 16 Updated Nov 5, 2026
  • microsoft/foundry-dev-tools's past year of commit activity
    JavaScript 2,055 MIT 260 192 4 Updated Nov 5, 2026
  • BotFramework-WebChat Public

    A highly-customizable web-based client for Azure Bot Services.

    microsoft/BotFramework-WebChat's past year of commit activity
    HTML 1,787 MIT 1,600 367 27 Updated Nov 5, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode's past year of commit activity
    TypeScript 194,653 MIT 44,394 5,000+ (461 issues need help) 3,067 Updated Nov 5, 2026
  • agent-host-protocol Public

    Synchronized multi-client state for AI agent sessions

    microsoft/agent-host-protocol's past year of commit activity
    TypeScript 440 MIT 152 43 26 Updated Nov 5, 2026
  • mu_basecore Public

    Project Mu BaseCore

    microsoft/mu_basecore's past year of commit activity
    C 291 196 10 7 Updated Nov 5, 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# 12,077 MIT 721 49 (11 issues need help) 53 Updated Nov 5, 2026