There are 3 repositories under csharp-library topic.
:books: Library of all kind of scripts, snippets & shaders for Unity
Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications
The Official C# .NET Driver for MongoDB
A framework for building messaging apps with .NET and C#.
High performance LINQ implementation with minimal heap allocations. Supports enumerables, async enumerables, arrays and Span<T>.
Linq-like extension functions for Arrays, Span<T>, and List<T> that are faster and allocate less.
C# Barcode Image Generation Library
The best way to implement singleton pattern in Unity.
Easy datasheet management for C# and Unity. Supports Excel, Google Sheet, JSON and CSV format.
⚡Offline dotnet standard library to get information about countries
Modern (Fluent 2) styles and controls for your WPF applications
Declarative framework for interactive CLI applications
A collection of methods for solving Finance/Accounting equations, implemented in C#.
The ultimate fast alternative to Activator.CreateInstance<T> / new T()
Hazel Networking is a low level networking library for C# providing connection orientated, message based communication via TCP, UDP and RUDP.
Simpliest Fluent REST client for .NET
Jimmy's Epic Config System
DarkConfig is a configuration library for games which supports fast and expressive iteration
C# library for the collection of browser information such as cookies, logins, bookmarks and more
This is a simple library for detecting profanities within a text string.
C# assembly for creating and reading ZUGFeRD invoices
Meta.Numerics is library for advanced numerical computing on the .NET platform. It offers an object-oriented API for statistical analysis, advanced functions, Fourier transforms, numerical integration and optimization, and matrix algebra.
Full C# port of Brotli compression algorithm
Dijkstra's Pathfinding Algorithm Unity Implementation. (Not being maintained by me, it is just an experiment.)