Ross ROSS = Recommend OSS · open-source software intelligence for agents

Open-source dotnet software

1138 open-source libraries, tools and applications tagged dotnet, ranked by how closely dotnet is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.

1138 products, primary matches first, then adoption-weighted; health v2 shown.

ProductHealth v2StarsMaturity
MarimerLLC/csla
CSLA .NET is a software development framework for building a reusable, maintainable object-oriented business logic layer in .NET applicatio…
951346stable
dahall/TaskScheduler
A .NET wrapper library for the Windows Task Scheduler that aggregates multiple scheduler versions (1.0 through 2.0) behind a unified manage…
661345stable
retypeapp/retype
Retype is a high-performance static site generator that turns plain Markdown files into polished documentation websites via a simple CLI. I…
821341active
Apache Casbin
Casbin.NET is the .NET (C#) implementation of Apache Casbin, an open-source authorization library that enforces access control via models s…
881338stable
Ookii.Dialogs
A .NET class library providing native Windows dialogs for WPF applications, including task dialogs, progress dialogs, credential dialogs, a…
481337active
Seq
Superpower is a C# parser combinator library, based on Sprache, for building declarative text and token-driven parsers embedded directly in…
711336active
disruptor-net/Disruptor-net
A .NET port of the LMAX Disruptor, a high-performance inter-thread message passing framework built around a pre-allocated ring buffer with …
531330active
DSharpPlus
DSharpPlus is an unofficial .NET wrapper library for the Discord API, used to build Discord bots in C#. It is the continuation of DiscordSh…
841329active
masastack/MASA.Blazor
MASA.Blazor is a Material Design-based UI component library for Blazor, supporting Blazor Server, Blazor WebAssembly, and MAUI Blazor. It o…
761329active
PropertyTools/PropertyTools
A collection of custom WPF controls for .NET, including PropertyGrid, DataGrid, TreeListBox, ColorPicker, and various pickers and editors. …
621328active
DNSveil
DNSveil is a Windows-only secure DNS client supporting DNSCrypt, Anonymized DNSCrypt, DoH, DoT, and plain DNS over UDP/TCP, with built-in D…
531328active
tomakita/Colorful.Console
Colorful.Console is a C# library that wraps System.Console to add enhanced color styling to .NET console output. It supports full System.Dr…
231328stable
AntSK
AntSK is an enterprise AI knowledge base and agent platform built on .NET 9, Blazor, Semantic Kernel, and Kernel Memory. It supports import…
721327active
Blazored/LocalStorage
A C# library giving Blazor applications access to the browser's localStorage APIs, with automatic JSON serialization and deserialization of…
101327active
CXWorld/CapFrameX
CapFrameX is a Windows desktop application for capturing and analyzing frametimes and FPS in PC games, built on Intel's PresentMon with ove…
981326stable
fsprojects/FAKE
FAKE (F# Make) is a cross-platform build automation system and DSL written in F# for .NET. It lets developers define typed, declarative bui…
911325active
kspearrin/Otp.NET
Otp.NET is a C# library implementing TOTP (RFC 6238) and HOTP (RFC 4226) one-time password algorithms, available on NuGet. It supports conf…
471324stable
wiz0u/WTelegramClient
WTelegramClient is a Telegram Client API (MTProto) library written entirely in C# and .NET, allowing programs to connect to Telegram and co…
751320active
sardanioss/httpcloak
httpcloak is a Go HTTP client library that reproduces browser-identical TLS, HTTP/2, and HTTP/3 fingerprints (JA3/JA4, Akamai, header order…
581319active
Meowv/Blog
A personal blog system built on ABP vNext and .NET 5 with a front-end/back-end separated architecture: a RESTful API, a Blazor Server web f…
711316active
RobThree/IdGen
A .NET library that generates 64-bit, roughly time-ordered unique IDs inspired by Twitter's Snowflake. It lets you customize the bit layout…
231313stable
VirtoCommerce/vc-platform
Virto Commerce is an open-source, headless ecommerce platform for building extensible B2B, B2C, and B2B2C digital commerce solutions, marke…
931312stable
ghost1372/HandyControls
HandyControls is a C# library of extended WPF UI controls, styles, and themes built as a fork of HandyControl, adding extra controls and fe…
831312active
svg-net/SVG
SVG.NET is a C# library for reading, writing, and rendering SVG 1.1 images in .NET applications. It targets .NET Standard 2.0 and is distri…
701312active
hemaju/Wireboy.Socket.P2PSocket
A P2P NAT traversal tool written in C#/.NET that punches holes through firewalls to enable remote access between networks, e.g. controlling…
491312active
oleg-shilo/wixsharp
WixSharp is a C# framework for building complete MSI installers or WiX source code by writing script files in plain C# syntax. It models Wi…
941311active
HunterPie/HunterPie
A free, open-source Windows overlay and companion app for Monster Hunter games (Wilds, World, Rise). It reads game memory to display real-t…
921307active
bUnit-dev/bUnit
bUnit is a C# testing library for Blazor components that lets tests run like regular unit tests on top of xUnit, NUnit, MSTest, and TUnit. …
961304active
qwqcode/SubRenamer
SubRenamer is a cross-platform desktop GUI tool that batch renames subtitle files to match their corresponding video file names with one cl…
301294active
Fabulous
Fabulous is a declarative UI framework for .NET that lets developers build cross-platform mobile and desktop applications in F# using the M…
991290active
opserver/Opserver
Opserver is Stack Exchange's open-source monitoring dashboard, built as an ASP.NET Core web application. It provides a unified view of serv…
324563maintenance
amantinband/throw
A fluent, extensible .NET 6+ library for throwing exceptions with customizable guard clauses and argument validation. It provides chainable…
321289stable
dotnetcore/sharding-core
ShardingCore is a high-performance, lightweight .NET library that adds table sharding, database sharding, and read-write separation to Enti…
821287active
Panuon/Panuon.WPF.UI
Panuon.WPF.UI is a professional UI engine/library for WPF applications that lets developers customize control appearance with minimal code.…
581286active
mmanela/diffplex
DiffPlex is a C# library targeting .NET Standard 1.0+ that generates textual diffs between pieces of text. It provides low-level diffing, s…
651283stable
PavelTorgashov/FastColoredTextBox
FastColoredTextBox is a .NET text editor component with fast, customizable syntax highlighting. It supports regex-based styling, word wrap,…
401283active
RRQM/TouchSocket
TouchSocket is a high-performance .NET networking library covering TCP, UDP, SSL, named pipes, HTTP, WebSocket, MQTT, Modbus, and RPC in a …
661279active
json-everything/json-everything
A collection of .NET libraries extending System.Text.Json with support for JSON Schema validation, JSON Path, JSON Pointer, JSON Patch, JSO…
771278active
unosquare/ffmediaelement
FFME is a WPF MediaElement replacement control for .NET applications built on top of FFmpeg shared libraries. It provides advanced audio an…
231275active
AElfProject/AElf
aelf is a cloud-native layer-1 blockchain network written in C# that achieves scalability through a mainchain plus multi-dAppChain (sidecha…
831268active
3xpl01tc0d3r/ProcessInjection
A C# command-line tool that demonstrates and performs multiple Windows process injection techniques, including DLL injection, process hollo…
441266active
simpleinjector/SimpleInjector
Simple Injector is an easy, flexible, and fast Dependency Injection (DI) library for .NET, designed to promote best practices and steer dev…
881265stable
fsprojects/Avalonia.FuncUI
Avalonia.FuncUI is an F# library providing a functional Elm-style (MVU) layer on top of the Avalonia UI framework, including a virtual DOM,…
851265active
axuno/SmartFormat
SmartFormat is a lightweight C# text templating library that serves as a drop-in replacement for string.Format. It supports named placehold…
731259stable
dotnet/ClangSharp
ClangSharp provides C# bindings for the Clang C/C++ compiler library, auto-generated from Clang's C headers using ClangSharpPInvokeGenerato…
871254active
pakrym/jab
Jab is a compile-time dependency injection container for C# implemented as a Roslyn source generator. It generates strongly-typed service p…
471253active
fscheck/FsCheck
FsCheck is a property-based testing library for .NET, ported from Haskell's QuickCheck. Programmers specify properties that functions shoul…
921252active
BlazorBootstrap
An enterprise-class Blazor component library built on Bootstrap 5 CSS, providing UI components like grids, modals, offcanvas, autocomplete,…
851249active
Stock Indicators
A C# NuGet library (FacioQuo.Stock.Indicators, formerly Skender.Stock.Indicators) that transforms historical OHLCV price bars from equities…
951248active
Redth/PushSharp
PushSharp is a server-side C#/.NET library for sending push notifications to iOS/OSX (APNS), Android/Chrome (GCM/FCM), Windows/Windows Phon…
234377maintenance
Vortice.Windows
Vortice.Windows is a set of .NET libraries providing modern C# bindings for DirectX APIs including Direct3D 9/11/12, Direct2D, DirectWrite,…
671244active
b-editor/beutl
Beutl is a free, open-source, cross-platform video editing and compositing application built on .NET. It offers a timeline with layers, nod…
991242active
alanmcgovern/monotorrent
MonoTorrent is a BitTorrent library for .NET implementing a wide range of BitTorrent Enhancement Proposals (BEPs), including DHT, UDP track…
761242active
mukunku/ParquetViewer
A free Windows desktop application for viewing and querying Apache Parquet files. It supports SQL queries, metadata inspection, partitioned…
901241active
ststeiger/PdfSharpCore
PdfSharpCore is a .NET Standard port of the PdfSharp and MigraDoc libraries for creating and manipulating PDF documents, with GDI+ dependen…
351221active
kubernetes-client/csharp
The officially supported Kubernetes client library for .NET, published as the KubernetesClient NuGet package. It provides typed access to t…
951217active
Fellow Oak DICOM
Fellow Oak DICOM (fo-dicom) is a C#/.NET library implementing the DICOM standard for medical imaging, including parsing, image codecs, anon…
841216active
Azure/DotNetty
DotNetty is a C# port of the Netty project, an asynchronous event-driven network application framework. It enables rapid development of mai…
474252maintenance
meziantou/Meziantou.Analyzer
Meziantou.Analyzer is a C# Roslyn analyzer distributed as a NuGet package that performs static analysis to detect bugs, security issues, an…
961214active
bp2008/BetterClearTypeTuner
A Windows utility that provides a better interface for configuring ClearType font smoothing settings than the built-in OS tuner. It offers …
921210active
Tim-Maes/Facet
Facet is a C# source generator that eliminates DTO boilerplate by generating DTO types, constructors, LINQ projections, and reverse mapping…
811209active
WolvenKit
WolvenKit is an open-source desktop mod editor and creator for CD Projekt's REDengine games, primarily Cyberpunk 2077. It can read and writ…
921206active
visualHFT/VisualHFT
VisualHFT is an open-source Windows desktop application for real-time market microstructure analysis, visualizing live Level 2 order books,…
761206active
beetlex-io/BeetleX
BeetleX is a high-performance .NET socket communication library supporting TCP, TLS, HTTP, HTTPS, WebSocket, MQTT, RPC, and Redis protocols…
231200active
siemens/ros-sharp
ROS# is a set of open-source C# libraries and tools for communicating with the Robot Operating System (ROS) from .NET applications, most no…
861199active
xoofx/ultra
Ultra is an advanced sampling profiler for .NET applications on Windows (ETW-based) and macOS Apple Silicon (EventPipe-based). It produces …
791195active
aspnet/Benchmarks
A collection of benchmark applications and Docker images for measuring ASP.NET Core performance, including TechEmpower Web Framework Benchm…
761195active
polterguy/magic
Magic Cloud is a self-hosted, MIT-licensed AI app builder platform that turns plain-English prompts into full-stack applications — database…
931194active
alipay/alipay-easysdk
Alipay Easy SDK is a multi-language server-side SDK (Java, C#, PHP, TypeScript, etc.) that provides a minimalist, factory-based API for acc…
321192active
HangfireIO/Cronos
Cronos is a .NET library for parsing Cron expressions and calculating their next occurrences. It handles time zones and daylight saving tim…
841190stable
ldqk/Masuit.MyBlogs
Masuit.MyBlogs is the source code of a high-performance personal blog/CMS system built with ASP.NET Core (.NET 9) MVC, Vue 3, Blazor Server…
911189active
microsoft/FeatureManagement-Dotnet
Microsoft.FeatureManagement is a .NET library providing standardized APIs for feature flags in applications, including ASP.NET Core integra…
901181stable
UiPath/CoreWF
CoreWF is a port of Microsoft's Windows Workflow Foundation (WF) runtime to .NET 6, allowing multi-step workflows composed of activities to…
721179active
MoaidHathot/Dumpify
Dumpify is a .NET library that adds LinqPad-style `.Dump()` extension methods to console applications, rendering any object in a structured…
621178active
VerbalExpressions
A C# library that provides a fluent, chainable API for constructing regular expressions without writing raw regex syntax. It is part of the…
601174stable
JKorf/Binance.Net
Binance.Net is a strongly typed C#/.NET client library for the Binance cryptocurrency exchange REST and WebSocket APIs. It supports Spot an…
931172active
microsoft/clrmd
ClrMD (Microsoft.Diagnostics.Runtime) is a .NET library for introspecting live processes and crash dumps of .NET applications. It provides …
771168active
pdevito3/craftsman
Craftsman is a .NET CLI scaffolding tool (the workhorse behind the Wrapt framework) that generates entire Web API projects, entities, endpo…
511168active
0xthirteen/SharpRDP
SharpRDP is a C# console application that executes authenticated commands on remote Windows hosts via the Remote Desktop Protocol, using th…
711167active
alirezanet/Gridify
Gridify is a .NET dynamic LINQ library that converts text-based query strings into LINQ expressions for filtering, sorting, and pagination.…
931165active
AvaloniaCommunity/Material.Avalonia
A customizable Material Design theme library for the AvaloniaUI framework, providing styles for nearly all Avalonia controls plus extra con…
971162active
ericdc1/Dapper.SimpleCRUD
Dapper.SimpleCRUD is a small C# extension for the Dapper micro-ORM that adds simple CRUD helper methods (Get, GetList, Insert, Update, Dele…
731161stable
ncalc/ncalc
NCalc is a fast, lightweight expression evaluator library for .NET that parses and evaluates mathematical and logical expressions at runtim…
961159active
sqids/sqids-dotnet
Sqids .NET is the official .NET port of Sqids, a small library that generates short, URL-safe, unique-looking IDs from non-negative integer…
631159active
Crequency/KitX
KitX is an all-purpose cross-platform toolbox application that connects tools and plugins across desktop, mobile, and web. It provides a pl…
651158active
AzureAD/azure-activedirectory-identitymodel-extensions-for-dotnet
Microsoft's IdentityModel extensions for .NET, a library for working with OpenID Connect, OAuth 2.0, and JSON Web Tokens (JWT) in .NET appl…
981154active
haplokuon/netDxf
netDxf is a C# .NET library for reading and writing AutoCAD DXF files, supporting AutoCad2000 through AutoCad2018 versions in both text and…
101148active
GregFinzer/Compare-Net-Objects
A .NET library that performs deep comparison of any two objects using reflection and reports the differences between them. It supports exte…
341146active
Mr-sans-and-InitLoader-s-team/Escape-From-Duckov-Coop-Mod-Preview
A cooperative multiplayer mod for the game Escape From Duckov, developed in C# and distributed via Steam Workshop. It synchronizes players,…
741145active
AwesomeAssertions/AwesomeAssertions
AwesomeAssertions is a community-controlled fork of FluentAssertions, providing an extensive set of fluent extension methods for writing TD…
851143active
PicoGK
PicoGK is a compact, open-source computational geometry kernel written in C++ with a C# layer, built by LEAP 71 as the foundation for Compu…
841142active
Power BI Embedded
Microsoft's official developer resources for Power BI Embedded, centered on the powerbi-client JavaScript library that renders Power BI rep…
671140stable
master131/iFakeLocation
A cross-platform desktop application that simulates GPS locations on connected iOS devices via the Developer Mode disk image mechanism. It …
231140active
fsbolero/Bolero
Bolero is a set of F# libraries and tools for building web applications on top of Blazor, running in WebAssembly or server-side via SignalR…
941136active
AvaloniaUI/AvaloniaEdit
AvaloniaEdit is a C# text editor control for the Avalonia UI framework, ported from the WPF-based AvalonEdit. It provides syntax highlighti…
781136active
Snoothy/UCR
Universal Control Remapper is a Windows application for remapping inputs from devices such as keyboards, mice, joysticks, and racing wheels…
551135active
dotnetcore/SmartSql
SmartSql is a MyBatis-inspired ORM for .NET that manages SQL in XML files with dynamic conditional tags, giving developers full control ove…
821134active
davidfowl/BedrockFramework
Bedrock Framework is a high-performance, low-level networking library for .NET that provides transport-agnostic APIs for building custom se…
481134active
dadhi/DryIoc
DryIoc is a fast, small, full-featured IoC (dependency injection) container for .NET, targeting net45 through net9.0 and netstandard. It em…
671133stable
AntdUI/AntdUI
AntdUI is a WinForms UI control library that brings the Ant Design aesthetic to .NET desktop applications. It renders all controls with pur…
821131active

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