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: * HTTP, Socks4, Socks4a and Socks5 proxy support. * SASL Authentication via ANONYMOUS, CRAM-MD5, DIGEST-MD5, LOGIN, NTLM, OAUTHBEARER, PLAIN, SCRAM-SHA-1, SCRAM-SHA-256, SCRAM-SHA-512 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, ANNOTATE, LIST-EXTENDED, ESORT, METADATA / METADATA-SERVER, NOTIFY, FILTERS, LIST-STATUS, SORT=DISPLAY, SPECIAL-USE / CREATE-SPECIAL-USE, SEARCH=FUZZY, MOVE, UTF8=ACCEPT / UTF8=ONLY, LITERAL-, APPENDLIMIT, STATUS=SIZE, OBJECTID, REPLACE, SAVEDATE, 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, DKIM and ARC 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.

Markdig.Signed by: Alexandre Mutel

A fast, powerful, CommonMark compliant, extensible Markdown processor for .NET with 20+ builtin extensions (pipetables, footnotes, definition lists... etc.)

MathEvaluator by: Anton Antonov

The MathEvaluator .NET library allows you to evaluate and compile any mathematical expressions from a string dynamically. It supports a wide range of operations and allows for the use of custom variables, operators, and functions. The evaluator can be configured for different contexts, such as scientific or programming math expressions, making it highly versatile for various use cases. This flexibility, combined with its high performance, makes it an excellent choice for developers needing a robust mathematical evaluation tool.

MathTrigonometric by: Anton Antonov

This C# library includes functions that are missing in .NET: cot, sec, csc, acot, asec, acsc, coth, sech, csch, acoth, asech, and acsch. Also, it includes standard functions: sin, cos, tan, asin, acos, atan, sinh, cosh, tanh, asinh, acosh, and atanh.

MediaTypeMap.Core by: Samuel Neff

Huge dictionary of file extensions to mime types

MeiliSearch by: Meilisearch

.NET wrapper for Meilisearch, an open-source search engine

MessagePack by: neuecc, aarnott

Extremely Fast MessagePack(MsgPack) Serializer for C# (.NET Framework, .NET 6, Unity, Xamarin).

MessagePack.Annotations by: neuecc, aarnott

Attributes and interfaces for .NET types serializable with MessagePack.

MessagePackAnalyzer by: neuecc, aarnott

Analyzers and source generator for MessagePack for C#. Verify rules for [MessagePackObject] and code fix for [Key]. A roslyn source generator for AOT or faster startup of applications that use the MessagePack nuget package.

Microsoft.AspNet.Authentication by: Microsoft

ASP.NET 5 common types used by the various authentication middleware.

Microsoft.AspNet.Cryptography.Internal by: Microsoft

Infrastructure for ASP.NET 5 cryptographic packages. Developers should not reference this package.

Microsoft.AspNet.DataProtection by: Microsoft

ASP.NET 5 logic to protect and unprotect data, similar to DPAPI.

Microsoft.AspNet.DataProtection.Abstractions by: Microsoft

Contains the core IDataProtector and IDataProtectionProvider abstractions for ASP.NET 5 Data Protection.

Microsoft.AspNet.DataProtection.Interfaces by: Microsoft

Contains the core IDataProtector and IDataProtectionProvider interfaces for ASP.NET 5 Data Protection.

Microsoft.AspNet.FeatureModel by: Microsoft

ASP.NET 5 HTTP feature infrastructure.

Microsoft.AspNet.FileProviders.Abstractions by: Microsoft

ASP.NET 5 file provider interfaces.

Microsoft.AspNet.Hosting.Abstractions by: Microsoft

ASP.NET 5 Hosting abstractions.

Microsoft.AspNet.Http by: Microsoft

ASP.NET 5 HTTP feature implementations.

Microsoft.AspNet.Http.Abstractions by: Microsoft

ASP.NET 5 HTTP object model. HttpContext and family.