Ranked by Attention Score: stars gained over the last 180 complete days
1–100 of 138 by Attention Score · May 10, 2026 – Nov 5, 2026 (UTC)
Application designed to optimize, customize and enhance your Windows experience.
Bitwarden infrastructure/backend (API, database, Docker, etc).
🏞 A fast, open-source, modern image viewer for 90+ formats – including WEBP, GIF, SVG, AVIF, JXL, HEIC and more – built for smooth browsing across Windows, macOS, and Linux.
Algorithmic trading and quantitative trading open source platform to develop trading robots (stock markets, forex, crypto, bitcoins, and options).
Everything integration for the Windows taskbar.
PEASS - Privilege Escalation Awesome Scripts SUITE (with colors)
One framework for creating powerful cross-platform games.
TranslatedCloudMoe Windows 10/11 Activation Toolkit get digital license, the best open source Win 10/11 activator in GitHub.
Store securely encrypted backups in the cloud!
Secure, cross-platform Git credential storage with authentication to GitHub, Azure Repos, and other popular Git hosting services.
EarTrumpet - Volume Control for Windows
Bitmap & tilemap generation from a single example with the help of ideas from quantum mechanics
The Unity Machine Learning Agents Toolkit (ML-Agents) is an open-source project that enables games and simulations to serve as environments for training intelligent agents using deep reinforcement learning and imitation learning.
Humanizer meets all your .NET needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities
The main repository for the development of the evolution game Thrive.
Unity C# reference source code.
QuestPDF is a modern library for PDF document generation. Its fluent C# API lets you design complex layouts with clean, readable code. Create documents using a flexible, component-based approach.
Chocolatey - the package manager for Windows
TickerQ is a fast, reflection-free background task scheduler for .NET built with source generators, EF Core integration, cron + time-based execution, and a real-time dashboard.
Git Extensions is a standalone UI tool for managing git repositories. It also integrates with Windows Explorer and Microsoft Visual Studio (2015/2017/2019).
ASP.NET Core eCommerce software. nopCommerce is a free and open-source shopping cart.
BizHawk is a multi-system emulator written in C#. BizHawk provides nice features for casual gamers such as full screen, and joypad support in addition to full rerecording and debugging tools for all system cores.
AI agents can now write 99% of the code. This changes what it means to be a developer. Our role shifts to knowing "what good looks like". To do that, we need completely new developer tools. Tendril is what replaces your IDE in an agentic era.
Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin). / msgpack.org[C#]
A simple library for creating state machines in C# code
.NET Community Toolkit is a collection of helpers and APIs that work for all .NET developers and are agnostic of any specific UI platform. The toolkit is maintained and published by Microsoft, and part of the .NET Foundation.
The automatic type-safe REST library for .NET. Refit turns a REST API into a C# interface and generates the HttpClient implementation, with support for HttpClientFactory, pluggable serializers and a testing package.
Prism is a framework for building loosely coupled, maintainable, and testable XAML applications in WPF, Xamarin Forms, and Uno / Win UI Applications..
An easy way to perform background job processing in .NET and .NET Core applications. No Windows Service or separate process required
A modern, cross-platform, 2D Graphics library for .NET
:card_index: A simple fake data generator for C#, F#, and VB.NET. Based on and ported from the famed faker.js.
Microsoft Azure PowerShell
KurrentDB is a database that's engineered for modern software applications and event-driven architectures. Its event-native design simplifies data modeling and preserves data integrity while the integrated streaming engine solves distributed messaging challenges and ensures data consistency.
Central repository for tools, tutorials, resources, and documentation for robotics simulation in Unity.
Mono open source ECMA CLI, C# and .NET implementation.
A WebRTC, SIP and VoIP library for C# and .NET. Designed for real-time communications apps.
.NET (WPF and Windows Forms) bindings for the Chromium Embedded Framework
Roslynator is a set of code analysis tools for C#, powered by Roslyn.
Cross platform GUI framework for desktop and mobile applications in .NET
xUnit.net is a free, open source, community-focused unit testing tool for .NET.
Should testing for .NET—the way assertions should be!
ILGPU JIT Compiler for high-performance .Net GPU programs
Canonical actor model implementation for .NET with local + distributed actors in C# and F#.
An interpreter for the Lua language, written entirely in C# for the .NET, Mono, Xamarin and Unity3D platforms, including handy remote debugger facilities.
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL, OpenAL & OpenCL. It also includes windowing, mouse, keyboard and joystick input and a robust and fast math library, giving you everything you need to write your own renderer or game engine. OpenTK can be used standalone or inside a GUI on Windows, Linux, Mac.
Fast and fully streamed Man-On-The-Middle to intercept, record, impersonate and alter HTTP/1.1, H2, websocket and gRPC traffic.
A .NET GIS solution that is fast and reliable for the .NET platform.
Protocol Buffers library for idiomatic .NET
:bus: Simple and lean service bus implementation for .NET
An open source fork of Windows Live Writer
A convention-based object-object mapper in .NET.
All the controls missing in WPF. Over 1 million downloads.
A friendly substitute for .NET mocking libraries.
Blazorise is a component library built on top of Blazor with support for CSS frameworks like Bootstrap, Tailwind, Bulma, AntDesign, and Material.
A lightweight text templating library written in C# which can be a drop-in replacement for string.Format
DotNetty project – a port of netty, event-driven asynchronous network application framework
A 100% native C# implementation of ZeroMQ for .NET
EPPlus-Excel spreadsheets for .NET
A ROS/ROS2 Multi-robot Simulator for Autonomous Vehicles
iText for .NET is the .NET version of the iText library, formerly known as iTextSharp, which it replaces. iText represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enha
Entity Framework EF Core efcore Bulk Batch Extensions with BulkCopy in .Net for Insert Update Delete Read (CRUD), Truncate and SaveChanges operations on SQL Server, PostgreSQL, MySQL, SQLite, Oracle
Fast and easy to use .NET library that creates or modifies Microsoft Word files without installing Word.
A set of tools for graph layout and viewing
Fellow Oak DICOM for .NET, .NET Core, Universal Windows, Android, iOS, Mono and Unity
A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET Core 3.0, .NET 6, .NET Standard 2.0 and 2.1. Supports the unit test frameworks MSTest2, NUnit3, XUnit2, MSpec, and NSpec3.
RabbitMQ .NET client for .NET Standard 2.0+ and .NET 4.6.2+
Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all
Virto's Commerce Innovation Platform. Source-available, modular .NET commerce backend built on Virto Atomic Architecture™.
The official Firely .NET SDK for HL7 FHIR
Code analyzer for C# and VB.NET projects
Strongly typed exceptions for Entity Framework Core. Supports SQLServer, PostgreSQL, SQLite, Oracle and MySql.
Extracts Exif, IPTC, XMP, ICC and other metadata from image, video and audio files
DSLR camera remote control open source software
Async/await first CQRS+ES and DDD framework for .NET
Workflow Engine by Optimajet, the embeddable workflow engine for .NET and C#. Approvals, state machines and long-running processes with a visual Workflow Designer, BPMN import and six databases.
Jwt.Net, a JWT (JSON Web Token) implementation for .NET
Flexible OpenID Connect and OAuth 2.0 server-side implementation for modern ASP.NET projects
Advanced analysis software for APK payloads created by RATs.
An advanced audio library, written in C#. Provides tons of features. From playing/recording audio to decoding/encoding audio streams/files to processing audio data in realtime (e.g. applying custom effects during playback, create visualizations,...). The possibilities are nearly unlimited.
.NET Standard wrapper for FFmpeg. It allows to process media without know how FFmpeg works, and can be used to pass customized arguments to FFmpeg from dotnet core application.
Sandcastle Help File Builder (SHFB). A standalone GUI, Visual Studio integration package, and MSBuild tasks providing full configuration and extensibility for building help files with the Sandcastle tools.
The gold standard for async .NET microservices on Azure, AWS and on-prem
ARCHIVE - New Repo: https://aka.ms/toolkit/windows
An application development platform
Digital Elevation model library in C#. 3D terrain models, line/point Elevations, intervisibility reports
Castle Core, including Castle DynamicProxy, Logging Services and DictionaryAdapter