mono — open-source software health

NuGet · npm

98Exceptionalhealth index

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.

C#★ 10KAug 28, 2026

Apache-2.0Aug 28, 2026 · metrics 2.10.0

Maven · npm

96Exceptionalhealth index

reactor/reactor-core

Non-Blocking Reactive Foundation for the JVM

Java★ 5,235Aug 28, 2026

Apache-2.0Aug 28, 2026 · metrics 2.10.0

Maven · npm

96Exceptionalhealth index

reactor/reactor-netty

TCP/HTTP/UDP/QUIC client/server with Reactor over Netty

Java★ 2,779Aug 21, 2026

Apache-2.0Aug 21, 2026 · metrics 2.10.0

NuGet

94Exceptionalhealth index

NLog/NLog

NLog - Flexible and Structured Logging for various .NET Platforms

C#★ 6,546Aug 28, 2026

BSD-3-ClauseAug 28, 2026 · metrics 2.10.0

NuGet

93Exceptionalhealth index

icsharpcode/ILSpy

.NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!

C#★ 25.8KAug 5, 2026

MITAug 5, 2026 · metrics 2.10.0

NuGet

91Excellenthealth index

unoplatform/uno.toolkit.ui

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.

C#★ 108Jul 23, 2026

MITJul 23, 2026 · metrics 2.10.0

PyPI

90Excellenthealth index

pythonnet/pythonnet

Python for .NET is a package that gives Python programmers nearly seamless integration with the .NET Common Language Runtime (CLR) and provides a powerful application scripting tool for .NET developers.

C# · Python★ 5,512↓ 3.1M/moAug 28, 2026

MITAug 28, 2026 · metrics 2.10.0

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90Excellenthealth index

unoplatform/uno.extensions

Libraries to ease common developer tasks associated with building multi-platform mobile, desktop and web applications using Uno Platform or WinAppSDK.

C#★ 100Jul 17, 2026

Custom licenseJul 17, 2026 · metrics 2.10.0

NuGet

81Excellenthealth index

Azure/amqpnetlite

AMQP 1.0 .NET Library

C#★ 419Aug 28, 2026

Apache-2.0Aug 28, 2026 · metrics 2.10.0

NuGet

78Goodhealth index

kleisauke/net-vips

.NET binding for libvips.

C#★ 522Aug 26, 2026

MITAug 26, 2026 · metrics 2.10.0

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77Goodhealth index

unoplatform/Uno.Wasm.Bootstrap

A simple nuget package to run C# code in a WASM-compatible browser

WebAssembly · JavaScript★ 382Jul 18, 2026

Custom licenseJul 18, 2026 · metrics 2.10.0

NuGet

71Goodhealth index

SteveGilham/altcover

Cross-platform coverage gathering and processing tool set for dotnet/.Net Framework and Mono

F#★ 531Aug 4, 2026

MITAug 4, 2026 · metrics 2.10.0

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69Goodhealth index

dotnet/WatsonTcp

WatsonTcp is the easiest way to build TCP-based clients and servers in C#.

C#★ 672Jul 29, 2026

MITJul 29, 2026 · metrics 2.10.0

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69Goodhealth index

unoplatform/uno.fonts

Uno Platform Fonts

PowerShell★ 12Jul 28, 2026

Custom licenseJul 28, 2026 · metrics 2.10.0

NuGet

63Moderatehealth index

josephmoresena/Rxmxnx.PInvoke.Extensions

Rxmxnx.PInvoke.Extensions is a comprehensive library designed to streamline and enhance the interaction between .NET and native P/Invoke methods.

C#★ 18Aug 25, 2026

MITAug 25, 2026 · metrics 2.10.0

NuGet

59Moderatehealth index

lextudio/sharpsnmplib

C# SNMP Library (#SNMP) - Open source SNMP implementation for C# and .NET

C#★ 404Aug 27, 2026

MITAug 27, 2026 · metrics 2.10.0

NuGet

57Moderatehealth index

JetBrains/profiler-api

The portable version of JetBrains profiler API for .NET Framework / .NET Core / .NET / .NET Standard / Mono

C#★ 36Jul 28, 2026

Apache-2.0Jul 28, 2026 · metrics 2.10.0

NuGet

56Moderatehealth index

Ruslan-B/FFmpeg.AutoGen

FFmpeg auto generated unsafe bindings for C#/.NET and Core (Linux, MacOS and Mono).

C# · C★ 1,605Aug 16, 2026

MITAug 16, 2026 · metrics 2.10.0

NuGet

45Weakhealth index

jbevain/cecil

Cecil is a library to inspect, modify and create .NET programs and libraries.

C#★ 2,986Jul 22, 2026

MITJul 22, 2026 · metrics 2.10.0

npm

41Weakhealth index

electrovir/mono-vir

No repository description published.

TypeScript★ 0↓ 10.5K/moSep 3, 2026

CC0-1.0Sep 3, 2026 · metrics 2.10.0

NuGet

41Weakhealth index

gpailler/MegaApiClient

MegaApiClient is a C# .Net library to access http://mega.co.nz / http://mega.nz cloud storage and file hosting service.

C#★ 235Jul 18, 2026

MITJul 18, 2026 · metrics 2.10.0

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33At Riskhealth index

unoplatform/uno.extensions.logging

Set of loggers compatible with Microsoft.Extensions.Logging. Provides an OSLog logger, and a browser console WebAssembly logger

C#★ 3Jul 18, 2026

Custom licenseJul 18, 2026 · metrics 2.10.0

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15Criticalhealth index

xxjapp/msyhx

font for programing based on microsoft yahei and consola

JavaScript★ 17Jul 24, 2026

No licenseJul 24, 2026 · metrics 2.10.0

#mono