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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 184k 39.4k

  2. TypeScript TypeScript Public

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

    TypeScript 109k 13.4k

  3. PowerToys PowerToys Public

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

    C# 132k 7.9k

  4. terminal terminal Public

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

    C++ 103k 9.2k

  5. semantic-kernel semantic-kernel Public

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

    C# 27.8k 4.6k

Repositories

Showing 10 of 7799 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# 1,003 MIT 292 191 23 Updated Apr 26, 2026
  • hve-core Public

    A refined collection of Hypervelocity Engineering components (instructions, prompts, agents, and skills) to start your project off right, or upgrade your existing projects to get the most out of all Copilots

    microsoft/hve-core’s past year of commit activity
    PowerShell 1,008 MIT 166 115 (4 issues need help) 19 Updated Apr 26, 2026
  • vscode Public

    Visual Studio Code

    microsoft/vscode’s past year of commit activity
    TypeScript 184,263 MIT 39,432 5,000+ (502 issues need help) 1,801 Updated Apr 26, 2026
  • winget-pkgs Public

    The Microsoft community Windows Package Manager manifest repository

    microsoft/winget-pkgs’s past year of commit activity
    10,520 MIT 6,807 1,145 148 Updated Apr 26, 2026
  • agent-governance-toolkit Public

    AI Agent Governance Toolkit — Policy enforcement, zero-trust identity, execution sandboxing, and reliability engineering for autonomous AI agents. Covers 10/10 OWASP Agentic Top 10.

    microsoft/agent-governance-toolkit’s past year of commit activity
    Python 1,257 MIT 236 21 2 Updated Apr 26, 2026
  • edge-ai Public

    Production-ready Infrastructure as Code, applications, pluggable components, and PlatformOps toolchains that empower organizations to achieve more with cloud and edge AI-powered solutions. Built by friendly geeks, for every team that needs edge solutions to achieve real production results.

    microsoft/edge-ai’s past year of commit activity
    HCL 75 MIT 35 75 (1 issue needs help) 9 Updated Apr 26, 2026
  • smc-clustering Public

    Scalable Model-Based Clustering with Sequential Monte Carlo

    microsoft/smc-clustering’s past year of commit activity
    Jupyter Notebook 2 MIT 0 0 4 Updated Apr 26, 2026
  • go-crypto-darwin Public

    macOS Crypto bindings for Go

    microsoft/go-crypto-darwin’s past year of commit activity
    Go 10 MIT 5 3 3 Updated Apr 26, 2026
  • go-crypto-winnative Public

    Go crypto backend for Windows using CNG

    microsoft/go-crypto-winnative’s past year of commit activity
    Go 43 MIT 6 3 2 Updated Apr 26, 2026
  • sciLaMA Public

    Paper Accepted to ICML2025: code for sciLaMA, a project led by Hongru Hu at Microsoft Research (Summer 2024)

    microsoft/sciLaMA’s past year of commit activity
    Python 8 MIT 2 2 9 Updated Apr 26, 2026
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