1.AvaloniaUI / Avalonia
Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The future of .NET UI
Ranked by Attention Score: stars gained over the last 180 complete days
73 repositories by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)
Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The future of .NET UI
The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
Blazor Component Library based on Material Design principles. Do more with Blazor, utilizing CSS and keeping JavaScript to a bare minimum.
Bootstrap Blazor is an enterprise-level UI component library based on Bootstrap and Blazor.
The official repo for the design of the C# programming language
Open-source platform for building cross-platform native Mobile, Web, Desktop, and Embedded apps from a single C#/XAML codebase. Work from any IDE/CLI with Hot Reload, Visual Designer, MCPs, and Skills built for modern .NET workflows. 200M+ NuGet downloads.
Radzen Blazor is the most sophisticated free UI component library for Blazor, featuring 155+ native components including DataGrid, Scheduler, Charts, and advanced theming with full support for Material Design and Fluent UI. If Radzen Blazor is useful to you, a ⭐ on GitHub helps other Blazor developers find it.
Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications
Abstraction layer over YouTube's internal API
The P programming language.
High performance Lua interpreter implemented in C# for .NET and Unity
Mono open source ECMA CLI, C# and .NET implementation.
:angel: The ultimate angle brackets parser library parsing HTML5, MathML, SVG and CSS to construct a DOM based on the official W3C specifications.
Human-readable schedule expressions for .NET (C#): write "every day at 9am except sunday" instead of cron. Time zones, fluent builder, custom keywords, cron converter.
Lightweight and fast library written in C# for reading Microsoft Excel files
ILGPU JIT Compiler for high-performance .Net GPU programs
An interpreter for the Lua language, written entirely in C# for the .NET, Mono, Xamarin and Unity3D platforms, including handy remote debugger facilities.
Fluid is an open-source .NET template engine based on the Liquid template language.
Tools and libraries to glue C/C++ APIs to high-level languages
A C# parser construction toolkit with high-quality error reporting
🌈A rich set of enterprise-class UI components based on Ant Design and Blazor.
Cecil is a library to inspect, modify and create .NET programs and libraries.
Cross platform code coverage for .NET
Blazorise is a component library built on top of Blazor with support for CSS frameworks like Bootstrap, Tailwind, Bulma, AntDesign, and Material.
Build all of your apps using what you already know and love ❤️
Use C# in web apps with comfort
Command line parsing, invocation, and rendering of terminal output.
Oqtane is an open-source developer productivity platform for building modern .NET applications and websites that run on Web, Desktop and Mobile.
A .NET MIME creation and parser library with support for S/MIME, PGP, DKIM, TNEF and Unix mbox spools.
A lightweight and fast parsing library for C#.
The best C# command line parser that brings standardized *nix getopt style, for .NET. Includes F# support
A language where the code is written with folders
PeachPie - the PHP compiler and runtime for .NET and .NET Core
Fast Compiler for C# Expression Trees and the lightweight LightExpression alternative. Diagnostic and code generation tools for the expressions.
Todo application with ASP.NET Core Blazor WASM, Minimal APIs and Authentication
The official Firely .NET SDK for HL7 FHIR
The new generation Pascal programming language for .NET
Open-source cross-platform symbolic algebra library for C# and F#. Can be used for both production and research purposes.
Clean Architecture Template for Blazor WebAssembly Built with MudBlazor Components.
A home for your business logic in any .NET application.
Free Bootstrap 5 components for ASP.NET Blazor + optional enterprise-level stack for Blazor development (gRPC code-first, layered architecture, localization, auth, ...)
When you publish your Blazor Wasm app, this package pre-renders and saves the app as static HTML files in your public folder.
Blazor Boilerplate / Starter Template with MudBlazor
Blazor UI component library based on Material Design. Support Blazor Server, Blazor WebAssembly and MAUI Blazor.
This library packages the well-known charting library plotly.js into a razor component that can be used in a Blazor project.
ETL framework for .NET (Parser / Writer for CSV, Flat, Xml, JSON, Key-Value, Parquet, Yaml, Avro formatted files)
Components collection and extensions for Blazor applications.
a C# embeddable lexer and parser generator (.Net core)
Blogifier is an open-source publishing platform Written in ASP.NET and Blazor WebAssembly. With Blogifier make a personal blog or a website.
A collection of code samples for the Uno Platform
IL2C - A translator for ECMA-335 CIL/MSIL to C language.
Uno Calculator: A simple yet powerful iOS/Android/WebAssembly/Linux C# port of the calculator that ships with Windows
A scripting language for .NET Core
RapidCMS is a Blazor framework which allows you to build a responsive and flexible CMS purely from code. It provides a basic set of editors and controls, and is fully customisable.
A set of custom controls for the WinUI and the Uno Platform not offered out of the box by WinUI, such as Card, TabBar, NavigationBar, etc.
Cropper.js as Blazor component for cropping images
A Web UI Library based on Element and Blazor WebAssembly.
The ultimate .NET Standard command line argument parser
A .NET library to parse and execute JavaScript code.
Runtime parser for string expressions (formulas, method calls). Builds dynamic LINQ expression tree and compiles it to lambda delegate.
C# .NET 7 Blazor habit tracker application. Works on Web, Windows, Linux, Android, iOS and macOS.
A simple to use blazor component to draw custom signatures.
inVtero.net: A high speed (Gbps) Forensics, Memory integrity & assurance. Includes offensive & defensive memory capabilities. Find/Extract processes, hypervisors (including nested) in memory dumps using microarchitechture independent Virtual Machiene Introspection techniques
Collection of applications based on a single C# .NET Standard project running in: Blazor Client (WebAssembly), Blazor Server, Electron, WPF, WinForms, Maui, WinUI3
ASP.NET Web Forms System.Web.UI.WebControls Razor Components For Blazor WebAssembly, Blazor Hybrid, Blazor Server.
This library is designed to help you use the Material, Fluent or Cupertino design system with the Uno Platform
Build simplified C#, dotnet execute with custom entry point, another dotnet run without a project file