Top MICROSOFT GitHub Repositories & Tools (2026)

Python tool for converting files and office documents to Markdown.

Visual Studio Code

Open-source Windows and Office activator featuring HWID, Ohook, TSforge, and Online KMS activation methods, along with advanced troubleshooting.

21 Lessons, Get Started Building with Generative AI

12 Weeks, 24 Lessons, AI for All!

Go language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets

Project Homepage & Forums

Feature-rich ORM for modern Node.js and TypeScript, it supports PostgreSQL (with JSON and JSONB support), MySQL, MariaDB, SQLite, MS SQL Server, Snowflake, Oracle DB, DB2 and DB2 for IBM i.

.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.

This repository is for active development of the Azure SDK for .NET. For consumers of the SDK we recommend visiting our public developer docs at https://learn.microsoft.com/dotnet/azure/ or our versioned developer docs at https://azure.github.io/azure-sdk-for-net.

.NET for Apache® Spark™ makes Apache Spark™ easily accessible to .NET developers.

Data API builder provides modern REST, GraphQL endpoints and MCP tools to your Azure Databases and on-prem stores.

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

PnP PowerShell

Simulate API failures, throttling, and chaos — all from your command line.

Self-hosted Personal AI + agent runtime in .NET (NativeAOT-friendly)

DacFx, SqlPackage, and other SQL development libraries enable declarative database development and database portability across SQL versions and environments. Share feedback here on dacpacs, bacpacs, and SQL projects.

DBA Dash - SQL Server Monitoring Tool

The PnP Core SDK is a modern .NET SDK designed to work for Microsoft 365. It provides a unified object model for working with SharePoint Online and Teams which is agnostic to the underlying API's being called

Microsoft Authentication Library (MSAL) for iOS and macOS