KirkFody by: Kirk Woll

Extensible tool for weaving .net assemblies.

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

librdkafka.redist by: Magnus Edenhill edenhill

The Apache Kafka C/C++ client library - redistributable

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.

LiteDB by: Maurício David

LiteDB - A lightweight embedded .NET NoSQL document store in a single datafile

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

Longbow.ComponentModel by: Argo Zhang(argo@163.com)

Longbow Component for .net core 2.0+ & .net framework 4.5+

Longbow.Cronos by: Andrey Dorokhov Sergey Odinokov

A fully-featured .NET library for parsing Cron expressions and calculating next occurrences that was designed with time zones in mind and correctly handles daylight saving time transitions.

Longbow.PetaPoco by: Argo Zhang(argo@163.com)

A Tiny ORMish thing for your POCO's.

Longbow.Security.Cryptography by: Argo Zhang(argo@163.com)

Longbow Component for .net core 2.0+ & .net framework 4.5+

Magick.NET-Q8-AnyCPU by: Dirk Lemstra

ImageMagick is a powerful image manipulation library that supports over 100 major file formats (not including sub-formats). With Magick.NET you can use ImageMagick without having to install ImageMagick on your server or desktop. Visit https://github.com/dlemstra/Magick.NET/tree/main/docs before installing to help you decide the best version.

Magick.NET.Core by: Dirk Lemstra

ImageMagick is a powerful image manipulation library that supports over 100 major file formats (not including sub-formats). With Magick.NET you can use ImageMagick without having to install ImageMagick on your server or desktop. Visit https://github.com/dlemstra/Magick.NET/tree/main/docs before installing to help you decide the best version.

Magicodes.EPPlus by: Magicodes

Create advanced Excel spreadsheets using .NET

Magnum by: Chris Patterson Dru Sellers

Magnum is a library for the larger than average developer

MahApps.Metro by: Jan Karger Bastian Schmidt Dennis Daume Brendan Forster Alex Mitchell Paul Jenkins Jake Ginnivan

The goal of MahApps.Metro is to allow devs to quickly and easily cobble together a 'Modern' UI for their WPF apps (.Net 4.6.2 and later), with minimal effort.

MailKit by: Jeffrey Stedfast

MailKit is an Open Source cross-platform .NET mail-client library that is based on MimeKit and optimized for mobile devices. Features include: * SASL Authentication via SCRAM-SHA-256, SCRAM-SHA-1, NTLM, DIGEST-MD5, CRAM-MD5, LOGIN, PLAIN, and XOAUTH2. * A fully-cancellable SmtpClient with support for STARTTLS, 8BITMIME, BINARYMIME, ENHANCEDSTATUSCODES, SIZE, DSN, PIPELINING and SMTPUTF8. * A fully-cancellable Pop3Client with support for STLS, UIDL, APOP, PIPELINING, UTF8, and LANG. * A fully-cancellable ImapClient with support for ACL, QUOTA, LITERAL+, IDLE, NAMESPACE, ID, CHILDREN, LOGINDISABLED, STARTTLS, MULTIAPPEND, UNSELECT, UIDPLUS, CONDSTORE, ESEARCH, SASL-IR, COMPRESS, WITHIN, ENABLE, QRESYNC, SORT, THREAD, ESORT, METADATA, FILTERS, LIST-STATUS, SORT=DISPLAY, SPECIAL-USE, CREATE-SPECIAL-USE, MOVE, SEARCH=FUZZY, UTF8=ACCEPT, UTF8=ONLY, LITERAL-, APPENDLIMIT, XLIST, and X-GM-EXT1. * Client-side sorting and threading of messages (the Ordinal Subject and the Jamie Zawinski threading algorithms are supported). * Asynchronous versions of all methods that hit the network. * S/MIME, OpenPGP and DKIM signature support via MimeKit. * Microsoft TNEF support via MimeKit.

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.