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Top 23 C# Xamarin Projects
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Avalonia
Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The most popular .NET UI client technology
Project mention: A Significant Sponsorship to Drive Our Open-Source Roadmap | news.ycombinator.com | 2025-06-24 -
InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Project mention: The Windows Subsystem for Linux is now open source | news.ycombinator.com | 2025-05-19
> whereas Microsoft is actively sabotaging wine
Do you have a link to where I can read more about this? My understanding is that Microsoft saw Wine as inconsequential to their business, even offloading the Mono runtime to them [1] when they dropped support for it.
[1] https://www.mono-project.com/
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Uno Platform
Open-source platform for building cross-platform native Mobile, Web, Desktop and Embedded apps quickly. Create rich, C#/XAML, single-codebase apps from any IDE. Hot Reload included! 90m+ NuGet Downloads!!
As-is today, AI tools provide some productivity gains. However, they are not replacements for experienced developers. At Uno Platform we are investing in tools which make developers productive within their current environments, such as Hot Design. Also, we are keeping a close eye and thinking of these useful scenarios to apply AI to, as we don’t believe just adding a simple LLM to it will actually add value. So, stay tuned to our blogs and Dev.to account as there is more goodness coming on this topic.
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Refit
The automatic type-safe REST library for .NET Core, Xamarin and .NET. Heavily inspired by Square's Retrofit library, Refit turns your REST API into a live interface.
I really love using Refit library for communication with other services via HTTP protocol. This library provides an interface wrapper (with code generation) that wraps HttpClient using HttpClientFactory.
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ReactiveUI
An advanced, composable, functional reactive model-view-viewmodel framework for all .NET platforms that is inspired by functional reactive programming. ReactiveUI allows you to abstract mutable state away from your user interfaces, express the idea around a feature in one readable place and improve the testability of your application.
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Project mention: ZeroLog VS NLog - a user suggested alternative | libhunt.com/r/Abc-Arbitrage/ZeroLog | 2025-06-10
.NET Logging Library
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MessagePack for C# (.NET, .NET Core, Unity, Xamarin)
Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin). / msgpack.org[C#]
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SaaSHub
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SkiaSharp
SkiaSharp is a cross-platform 2D graphics API for .NET platforms based on Google's Skia Graphics Library. It provides a comprehensive 2D API that can be used across mobile, server and desktop models to render images.
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LiveCharts2
Simple, flexible, interactive & powerful charts, maps and gauges for .Net, LiveCharts2 can now practically run everywhere Maui, Uno Platform, Blazor-wasm, WPF, WinForms, Xamarin, Avalonia, WinUI, UWP.
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MVVMCross
The .NET MVVM framework for cross-platform solutions, including Android, iOS, MacCatalyst, macOS, tvOS, WPF, WinUI
Project mention: Epoxy alternatives - dotnet, Prism, and MVVMCross | libhunt.com/r/kekyo/Epoxy | 2024-09-20 -
Project mention: Ask HN: Have you successfully migrated away from Authy for 2FA? | news.ycombinator.com | 2024-06-25
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Caliburn.Micro
A small, yet powerful framework, designed for building applications across all XAML platforms. Its strong support for MV* patterns will enable you to build your solution quickly, without the need to sacrifice code quality or testability.
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macios
.NET for iOS, Mac Catalyst, macOS, and tvOS provide open-source bindings of the Apple SDKs for use with .NET managed languages such as C#
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Akavache
An asynchronous, persistent key-value store created for writing desktop and mobile applications, based on SQLite3. Akavache is great for both storing important data as well as cached local data that expires.
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moonsharp
An interpreter for the Lua language, written entirely in C# for the .NET, Mono, Xamarin and Unity3D platforms, including handy remote debugger facilities.
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FFImageLoading - Fast & Furious Image Loading
Image loading, caching & transforming library for Xamarin and Windows
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SaaSHub
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C# Xamarin discussion
C# Xamarin related posts
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Why Tracebit is written in C#
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Hands-On Graphics Without X11
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Unity Game Hacking - Calling FindObjectsOfType in C++
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A comparison of Rust's borrow checker to the one in C#
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Microsoft donates the Mono Project to the Wine team
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.NET 9 will be putting BinaryFormatter out to pasture
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AvaloniaUI: Create Multi-Platform Apps with .NET
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A note from our sponsor - SaaSHub
www.saashub.com | 25 Jun 2025
Index
What are some of the best open-source Xamarin projects in C#? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Avalonia | 27,951 |
| 2 | Mono | 11,309 |
| 3 | Uno Platform | 9,458 |
| 4 | Refit | 9,099 |
| 5 | ReactiveUI | 8,303 |
| 6 | NLog | 6,440 |
| 7 | MessagePack for C# (.NET, .NET Core, Unity, Xamarin) | 6,252 |
| 8 | SkiaSharp | 4,939 |
| 9 | LiveCharts2 | 4,779 |
| 10 | MVVMCross | 3,890 |
| 11 | app | 3,804 |
| 12 | CppSharp | 3,246 |
| 13 | TensorFlowSharp | 3,151 |
| 14 | Caliburn.Micro | 2,831 |
| 15 | macios | 2,694 |
| 16 | Akavache | 2,493 |
| 17 | NLua | 2,134 |
| 18 | Microcharts | 2,044 |
| 19 | AdaptiveCards | 1,848 |
| 20 | LibVLCSharp | 1,631 |
| 21 | shiny | 1,506 |
| 22 | moonsharp | 1,480 |
| 23 | FFImageLoading - Fast & Furious Image Loading | 1,415 |
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