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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 37.6k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.2k

  3. PowerToys PowerToys Public

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

    C# 129k 7.6k

  4. terminal terminal Public

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

    C++ 102k 9k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.1k 4.4k

Repositories

Showing 10 of 7527 repositories
  • azurelinux Public

    Linux OS for Azure 1P services and edge appliances

    microsoft/azurelinux’s past year of commit activity
    RPM Spec 4,530 MIT 603 178 487 Updated Jan 28, 2026
  • mcp Public

    Catalog of official Microsoft MCP (Model Context Protocol) server implementations for AI-powered data access and tool integration

    microsoft/mcp’s past year of commit activity
    C# 2,489 MIT 352 192 (20 issues need help) 63 Updated Jan 28, 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# 11,686 MIT 632 20 (11 issues need help) 13 Updated Jan 28, 2026
  • PR-Metrics Public

    A GitHub Action & Azure Pipelines task for augmenting pull request titles to let reviewers quickly determine PR size and test coverage.

    microsoft/PR-Metrics’s past year of commit activity
    TypeScript 75 MIT 15 0 2 Updated Jan 28, 2026
  • RecursiveExtractor Public

    RecursiveExtractor is a .NET Standard 2.0 archive extraction Library, and Command Line Tool which can process 7zip, ar, bzip2, deb, gzip, iso, rar, tar, vhd, vhdx, vmdk, wim, xzip, and zip archives and any nested combination of the supported formats.

    microsoft/RecursiveExtractor’s past year of commit activity
    C# 211 MIT 35 21 (2 issues need help) 2 Updated Jan 28, 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 10 MIT 5 8 0 Updated Jan 28, 2026
  • durabletask-js Public

    A Durable Task JavaScript SDK compatible with Dapr Workflow and its underlying Durable Task engine

    microsoft/durabletask-js’s past year of commit activity
    JavaScript 6 MIT 10 5 4 Updated Jan 28, 2026
  • vscode-azureappservice Public

    Azure App Service extension for VS Code

    microsoft/vscode-azureappservice’s past year of commit activity
    TypeScript 116 MIT 92 118 4 Updated Jan 28, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 181,145 MIT 37,624 5,000+ (539 issues need help) 1,008 Updated Jan 28, 2026
  • vscode-azureresourcegroups Public

    VS Code extension for managing Azure resources.

    microsoft/vscode-azureresourcegroups’s past year of commit activity
    TypeScript 70 MIT 47 157 5 Updated Jan 28, 2026
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