Jint by: Sebastien Ros

Javascript interpreter for .NET which provides full ECMA 5.1 compliance.

K4os.Compression.LZ4 by: Milosz Krajewski

Port of LZ4 compression algorithm for .NET

K4os.Compression.LZ4.Streams by: Milosz Krajewski

Port of LZ4 compression algorithm for .NET

K4os.Hash.xxHash by: Milosz Krajewski

xxHash hash implementation for .NET

KRE-CLR-x86 by: Microsoft

The K Runtime Environment for Desktop CLR x86

KRE-CoreCLR-x86 by: Microsoft

The K Runtime Environment for CoreCLR x86

LanguageExt.Core by: Paul Louth

This library uses and abuses the features of C# 6 and 7 to provide a functional 'Base class library', that, if you squint, can look like extensions to the language itself.

Libuv by: Libuv

Multi-platform support library with a focus on asynchronous I/O.

LinqBridge by: Atif Aziz

With Visual Studio's multi-targeting and LINQBridge, you can write LINQ to Objects (local) queries using the full power of the C# 3.0 compiler and yet create programs that require only Microsoft .NET Framework 2.0. LINQBridge is a re-implementation of all the standard query operators introduced with Microsoft .NET Framework 3.5's System.Linq.Enumerable class.

LinqKit.Core by: Joseph Albahari Tomas Petricek Scott Smith Tuomas Hietanen Stef Heyenrath

LinqKit.Core contains extensions for LINQ to SQL and Entity Framework. Note that Include(...), IAsync and IDbAsync are not supported.

log4net by: The Apache Software Foundation

log4net is a tool to help the programmer output log statements to a variety of output targets. In case of problems with an application, it is helpful to enable logging so that the problem can be located. With log4net it is possible to enable logging at runtime without modifying the application binary. The log4net package is designed so that log statements can remain in shipped code without incurring a high performance cost. It follows that the speed of logging (or rather not logging) is crucial. At the same time, log output can be so voluminous that it quickly becomes overwhelming. One of the distinctive features of log4net is the notion of hierarchical loggers. Using these loggers it is possible to selectively control which log statements are output at arbitrary granularity. log4net is designed with two distinct goals in mind: speed and flexibility

log4stash by: urielha

log4stash is a log4net appender for easy logging of exceptions and messages to Elasticsearch indices. You can configure few filters to analyze log events before they got sended to Elasticsearch similar to the filters on logstash.

ManagedEsent by: Microsoft

ManagedEsent provides managed access to ESENT, the embeddable database engine native to Windows. ManagedEsent uses the esent.dll that is part of Microsoft Windows so there are no extra unmanaged binaries to download and install.

Mapster by: chaowlert eric_swann

A fast, fun and stimulating object to object mapper. Kind of like AutoMapper, just simpler and way, way faster.

Mapster.Core by: Chaowlert Chaisrichalermpol

Lightweight library for Mapster and Mapster CodeGen

Mapster.DependencyInjection by: Chaowlert Chaisrichalermpol

Dependency Injection supports for Mapster

MathNet.Numerics.Signed by: Christoph Ruegg Marcus Cuda Jurgen Van Gael

Math.NET Numerics is the numerical foundation of the Math.NET project, aiming to provide methods and algorithms for numerical computations in science, engineering and every day use. Supports .Net Framework 4.0 or higher and .Net Standard 1.3 or higher, on Windows, Linux and Mac. This package contains strong-named assemblies for legacy use cases (not recommended).

MediaInfo.Core.Native by: MediaArea.net SARL.

MediaInfo(Lib) is a convenient unified display of the most relevant technical and tag data for video and audio files. MediaInfolib with support network AV streams.

MediaToolkit by: Aydin

MediaToolkit is a .NET library which can convert and process audio and video files. Functionality: - Grab thumbnails from videos - Cut / split videos - Convert video files into various other video formats. - Perform video transcoding tasks. - Set bit rate - Set frame rate - Set resolution or size - Set aspect ratio - Set duration - Perform audio transcoding tasks. - Set audio sample rate - Convert video to physical formats using FILM, PAL or NTSC tv standards - DVD - DV - DV50 - VCD - SVCD

MediatR by: Jimmy Bogard

Simple, unambitious mediator implementation in .NET