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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 183k 38.7k

  2. TypeScript TypeScript Public

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

    TypeScript 108k 13.3k

  3. PowerToys PowerToys Public

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

    C# 131k 7.8k

  4. terminal terminal Public

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

    C++ 102k 9.1k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.5k 4.5k

Repositories

Showing 10 of 7688 repositories
  • testfx Public

    This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

    microsoft/testfx’s past year of commit activity
    C# 994 MIT 292 189 34 Updated Mar 22, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 182,957 MIT 38,685 5,000+ (522 issues need help) 1,324 Updated Mar 22, 2026
  • presidio Public

    An open-source framework for detecting, redacting, masking, and anonymizing sensitive data (PII) across text, images, and structured data. Supports NLP, pattern matching, and customizable pipelines.

    microsoft/presidio’s past year of commit activity
    Python 7,324 MIT 974 55 (5 issues need help) 16 Updated Mar 22, 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 8,123 MIT 1,349 581 150 Updated Mar 22, 2026
  • typed-rest-client Public

    Node Rest and Http Clients with typings for use with TypeScript

    microsoft/typed-rest-client’s past year of commit activity
    TypeScript 684 114 1 20 Updated Mar 22, 2026
  • foquery Public

    Focus Queries to manage web application focus

    microsoft/foquery’s past year of commit activity
    TypeScript 0 MIT 1 0 0 Updated Mar 22, 2026
  • quicreach Public

    A 'ping' equivalent tool for QUIC.

    microsoft/quicreach’s past year of commit activity
    C++ 140 MIT 34 1 (1 issue needs help) 5 Updated Mar 22, 2026
  • security-devops-action Public

    Microsoft Security DevOps for GitHub Actions.

    microsoft/security-devops-action’s past year of commit activity
    JavaScript 146 MIT 59 17 3 Updated Mar 22, 2026
  • conductor Public

    A CLI tool for defining and running multi-agent workflows with the GitHub Copilot SDK and Anthropic Agents SDK.

    microsoft/conductor’s past year of commit activity
    Python 25 MIT 3 3 2 Updated Mar 22, 2026
  • WSL Public

    Windows Subsystem for Linux

    microsoft/WSL’s past year of commit activity
    C++ 31,489 MIT 1,652 926 45 Updated Mar 22, 2026
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