AutoMapper by: Jimmy Bogard

A convention-based object-object mapper. AutoMapper uses a fluent configuration API to define an object-object mapping strategy. AutoMapper uses a convention-based matching algorithm to match up source to destination values. Currently, AutoMapper is geared towards model projection scenarios to flatten complex object models to DTOs and other simple objects, whose design is better suited for serialization, communication, messaging, or simply an anti-corruption layer between the domain and application layer.

AWSSDK.Core by: Amazon Web Services

The Amazon Web Services SDK for .NET - Core Runtime

AWSSDK.SimpleEmail by: Amazon Web Services

The Amazon Web Services SDK for .NET - Amazon Simple Email Service

BenchmarkDotNet by: .NET Foundation and contributors

Powerful .NET library for benchmarking

BenchmarkDotNet.Annotations by: .NET Foundation and contributors

Powerful .NET library for benchmarking

BenchmarkDotNet.Core by: .NET Foundation and contributors

Powerful .NET library for benchmarking

BenchmarkDotNet.Toolchains.Roslyn by: .NET Foundation and contributors

Powerful .NET library for benchmarking

BlazorStrap by: Chanan Braunstein, John Bomhold

A bootstrap 5 component library for Blazor

BlazorStrap.V5 by: Chanan Braunstein, John Bomhold

Bootstrap 5.x component library for BlazorStrap

Bogus by: Brian Chavez

A simple and sane data generator for populating objects that supports different locales. A delightful port of the famed faker.js and inspired by FluentValidation. Use Bogus to create UIs with fake data or seed databases. Get started by using Faker class or a DataSet directly.

bootstrap by: The Bootstrap Authors

The most popular front-end framework for developing responsive, mobile first projects on the web.

BouncyCastle by: Bouncy Castle Project Contributors

- Generation and parsing of PKCS-12 files. - X.509: Generators and parsers for V1 and V3 certificates, V2 CRLs and attribute certificates. - PBE algorithms supported by PbeUtilities: PBEwithMD2andDES-CBC, PBEwithMD2andRC2-CBC, PBEwithMD5andDES-CBC, PBEwithMD5andRC2-CBC, PBEwithSHA1andDES-CBC, PBEwithSHA1andRC2-CBC, PBEwithSHA-1and128bitRC4, PBEwithSHA-1and40bitRC4, PBEwithSHA-1and3-keyDESEDE-CBC, PBEwithSHA-1and2-keyDESEDE-CBC, PBEwithSHA-1and128bitRC2-CBC, PBEwithSHA-1and40bitRC2-CBC, PBEwithHmacSHA-1, PBEwithHmacSHA-224, PBEwithHmacSHA-256, PBEwithHmacRIPEMD128, PBEwithHmacRIPEMD160, and PBEwithHmacRIPEMD256. - Signature algorithms supported by SignerUtilities: MD2withRSA, MD4withRSA, MD5withRSA, RIPEMD128withRSA, RIPEMD160withECDSA, RIPEMD160withRSA, RIPEMD256withRSA, SHA-1withRSA, SHA-224withRSA, SHA-256withRSAandMGF1, SHA-384withRSAandMGF1, SHA-512withRSAandMGF1, SHA-1withDSA, and SHA-1withECDSA. - Symmetric key algorithms: AES, Blowfish, Camellia, CAST5, CAST6, ChaCha, DES, DESede, GOST28147, HC-128, HC-256, IDEA, ISAAC, Noekeon, RC2, RC4, RC5-32, RC5-64, RC6, Rijndael, Salsa20, SEED, Serpent, Skipjack, TEA/XTEA, Threefish, Tnepres, Twofish, VMPC and XSalsa20. - Symmetric key modes: CBC, CFB, CTS, GOFB, OFB, OpenPGPCFB, and SIC (or CTR). - Symmetric key paddings: ISO10126d2, ISO7816d4, PKCS-5/7, TBC, X.923, and Zero Byte. - Asymmetric key algorithms: ElGamal, DSA, ECDSA, NaccacheStern and RSA (with blinding). - Asymmetric key paddings/encodings: ISO9796d1, OAEP, and PKCS-1. - AEAD block cipher modes: CCM, EAX, GCM and OCB. - Digests: GOST3411, Keccak, MD2, MD4, MD5, RIPEMD128, RIPEMD160, RIPEMD256, RIPEMD320, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, SHA3, Tiger, and Whirlpool. - XOFs: SHAKE. - Signer mechanisms: DSA, ECDSA, ECGOST3410, ECNR, GOST3410, ISO9796d2, PSS, RSA, X9.31-1998. - Key Agreement: Diffie-Hellman, EC-DH, EC-MQV, J-PAKE, SRP-6a. - Macs: CBCBlockCipher, CFBBlockCipher, CMAC, GMAC, GOST28147, HMac, ISO9797 Alg. 3, Poly1305, SipHash, SkeinMac, VMPCMAC. - PBE generators: PKCS-12, and PKCS-5 - schemes 1 and 2. - OpenPGP (RFC 4880) - Cryptographic Message Syntax (CMS, RFC 3852), including streaming API. - Online Certificate Status Protocol (OCSP, RFC 2560). - Time Stamp Protocol (TSP, RFC 3161). - TLS/DTLS client/server up to version 1.2, with support for the most common ciphersuites and extensions, and many less common ones. Non-blocking API available. - Elliptic Curve Cryptography: support for generic F2m and Fp curves, high-performance custom implementations for many standardized curves. - Reading/writing of PEM files, including RSA and DSA keys, with a variety of encryptions. - PKIX certificate path validation

Castle.Core by: Castle Project Contributors

Castle Core, including DynamicProxy, Logging Abstractions and DictionaryAdapter

CommandLineParser by: gsscoder, nemec, ericnewton76, moh-hassan

Terse syntax C# command line parser for .NET. For FSharp support see CommandLineParser.FSharp. The Command Line Parser Library offers to CLR applications a clean and concise API for manipulating command line arguments and related tasks.

CommonServiceLocator by: .NET Foundation and Contributors

The library provides an abstraction over IoC containers and service locators. Using the library allows an application to indirectly access the capabilities without relying on hard references.

ConsoleAppFramework by: Cysharp

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

Crc32.NET by: force

Fast version of Crc32 & Crc32C algorithms for .NET and .NET Core. It is up to 3x-5x times better than other "fast" implemenations. Code based on Crc32C.NET library.

CsQuery by: James Treworgy

CsQuery is an HTML parser, CSS selector engine and jQuery port for .NET 4 and C#. It implements all CSS2 and CSS3 selectors, all the DOM manipulation methods of jQuery, and some of the utility methods.

CsvHelper by: Josh Close

A library for reading and writing CSV files. Extremely fast, flexible, and easy to use. Supports reading and writing of custom class objects.

Cucumber.Messages by: Cucumber Ltd, TechTalk

Protocol Buffer messages for Cucumber's and SpecFlow's inter-process communication