Cysharp

Provides an efficient allocation free async/await integration for Unity.

Zero allocation LINQ with LINQ to Span, LINQ to SIMD, and LINQ to Tree (FileSystem, JSON, GameObject, etc.) for all .NET platforms and Unity, Godot.

Zero encoding extreme performance binary serializer for C# and Unity.

Unified Realtime/API framework for .NET platform and Unity.

The new future of dotnet/reactive and UniRx.

Zero Allocation StringBuilder for .NET and Unity.

Zero Dependency, Zero Overhead, Zero Reflection, Zero Allocation, AOT Safe CLI Framework powered by C# Source Generator.

High performance in-memory/distributed messaging pipeline for .NET and Unity.

Source Generator based Embedded Typed Readonly In-Memory Document Database for .NET and Unity.

Zero Allocation Text/Structured Logger for .NET with StringInterpolation and Source Generator, built on top of a Microsoft.Extensions.Logging.

Fast .NET C# Implementation of ULID for .NET and Unity.

High performance observable collections and synchronized views, for WPF, Blazor, Unity.

Generate C# FFI from Rust for automatically brings native code and C native library to .NET and Unity.

Drop-in replacement of LINQ aggregation operations extremely faster with SIMD.

Simplify call an external process with the async streams in C# 8.0.

YetAnotherHttpHandler brings the power of HTTP/2 (and gRPC) to Unity and .NET Standard.

C# Source Generator to create value-object, inspired by units of measure.

Utilized native-memory backed array for .NET and Unity - over the 2GB limitation and support the modern API(IBufferWriter, ReadOnlySequence, scatter/gather I/O, etc...).

Structure of arrays source generator to make CPU Cache and SIMD friendly data structure for high-performance code in .NET and Unity.

CLI/GUI Frontend of Unity Test Runner to test on any platform.

NativeCompressions is the native binding and high-level API of ZStandard, LZ4 and OpenZL compression library for .NET and Unity.

.NET PhysX 5 binding to all platforms(win, osx, linux) for 3D engine, deep learning, dedicated server of gaming.

KcpTransport is a Pure C# implementation of RUDP for high-performance real-time network communication

An alternative high performance NATS client for .NET.

A library for building server application using loop-action programming model on .NET.

Distributed load testing framework for .NET and Unity.

CsprojModifier performs additional processing when Unity Editor generates the .csproj.

Source Generator and .NET 8 UnsafeAccessor based high-performance strongly-typed private accessor for unit testing and runtime.

Utf8 based StreamReader for high performance text processing.

Unofficial Anthropic Claude API client for .NET.

Lightweight, Fast JWT(JSON Web Token) implementation for .NET.

Successor of ZString; UTF8 based zero allocation high-peformance String Interpolation and StringBuilder.

Simplifies styling strings in the terminal for .NET application.

Append supplemental methods(WhenAny, WhenAll, Lazy) to ValueTask.

SlnMerge merges the solution files when generating solution file by Unity Editor.

CLI Coding Agent not for Vibe-coding, for C# Expert.

High performance Token-Oriented Object Notation (TOON) encoder for .NET.

Yet Another gRPC over HTTP/1 using WebSocket implementation, primarily targets .NET platform.

High performance serialization infrastructure for C#.

Convert Object into QueryString/FormUrlEncodedContent for C# HttpClient REST Request.

Fill random/edge-case value to target type for unit testing, supports both .NET Standard and Unity.

A reverse proxy for local development environments that intercepts requests to AI services like OpenAI, Anthropic, etc.., allowing you to trace request and response content.