Isopoh.Cryptography.SecureArray by: Michael Heyman
  • 418 total downloads
  • Latest version: 2.0.0
  • sensitive array
A managed class that can hold an array in RAM and zero it on disposal. The code has the capability to throw if it cannot lock the array in RAM or gracefully degrade to merely pinning the memory to prevent the CLR from moving it and risking exposure to other part of the executable.
iTextSharp by: iText Software
  • 682 total downloads
  • Latest version: 5.5.13.3
  • itext itextsharp c# .net csharp pdf
PLEASE NOTE: iTextSharp is EOL, and has been replaced by iText 7. Only security fixes will be added We HIGHLY recommend customers use iText 7 for new projects, and to consider moving existing projects from iTextSharp to iText 7 to benefit from the many improvements such as: - HTML to PDF (PDF/A) conversion - PDF Redaction - SVG support - Better language support (Indic, Thai, Khmer, Arabic, Hebrew) - PDF Debugging for your IDE - Data Extraction - Better continued support and bugfixes - More modular, extensible handling of your document workflow - Extra practical add-ons - Encryption, hashing and digital signatures iText is a PDF library that allows you to CREATE, ADAPT, INSPECT and MAINTAIN documents in the Portable Document Format (PDF), allowing you to add PDF functionality to your software projects with ease. We even have documentation to help you get coding. iText 7 is available under AGPL and Commercial license. iText 7 Community: https://www.nuget.org/packages/itext7/ iText 7 is a complete re-write of iText 5, allowing you to choose your adventure with add-ons, all based on a simple, modular code structure that is easy to use and well documented. iText 7 includes pdfDebug, the first debugging tool that gives you a clear overview of your content streams and document structure as well as pdfCalligraph, allowing you to leverage advanced typography. Several iText engineers are actively supporting the project on StackOverflow: https://stackoverflow.com/questions/tagged/itext
JetBrains.Annotations by: JetBrains
  • 1.14k total downloads
  • Latest version: 2026.2.0
  • jetbrains resharper rider annotations canbenull notnull
JetBrains.Annotations help reduce false positive warnings, explicitly declare purity and nullability in your code, deal with implicit usages of members, support special semantics of APIs in ASP.NET and XAML frameworks and otherwise increase accuracy of JetBrains Rider and ReSharper code inspections.
jnm2.ReferenceAssemblies.net35 by: Microsoft
  • 119 total downloads
  • Latest version: 1.0.1
A community answer to Microsoft’s decision to single out net35 by excluding it from the https://www.nuget.org/packages/Microsoft.NETFramework.ReferenceAssemblies/ package. This package provides the .NET Framework 3.5 reference assemblies so that net35 projects can be built using the dotnet CLI. Example project that targets multiple frameworks: <Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <TargetFrameworks>net35;net40;netstandard2.0;netcoreapp3.0</TargetFrameworks> </PropertyGroup> <ItemGroup> <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0" /> <PackageReference Include="jnm2.ReferenceAssemblies.net35" Version="1.0.1" /> </ItemGroup> </Project>
Json.More.Net by: Greg Dennis
  • 733 total downloads
  • Latest version: 3.0.1
  • json system.text.json json.more
Provides extended functionality for the System.Text.Json namespace.
Json.Net by: Onur Barlık
  • 664 total downloads
  • Latest version: 1.0.33
  • json, jsonnet, minimalistic
A minimalistic JSON handler library.
JsonExtensions by: Tyrrrz
  • 73 total downloads
  • Latest version: 1.2.3
  • system.text.json system text json extensions parsing deserialization serialization
Various extensions to enhance System.Text.Json.
JsonPatch.Net by: Greg Dennis
  • 781 total downloads
  • Latest version: 5.0.2
  • json-patch jsonpatch json
JSON Patch built on the System.Text.Json namespace
JsonPointer.Net by: Greg Dennis
  • 1.008k total downloads
  • Latest version: 7.0.1
  • json-pointer json pointer
JSON Pointer built on the System.Text.Json namespace
JsonSchema.Net by: Greg Dennis
  • 4.041k total downloads
  • Latest version: 9.2.2
  • json-schema validation schema json
JSON Schema built on the System.Text.Json namespace
JsonSchema.Net.Generation by: Greg Dennis
  • 1.911k total downloads
  • Latest version: 7.3.10
  • json-schema validation schema json generation schema-generation
Extends JsonSchema.Net to provide schema generation functionality
JunitXml.TestLogger by: spekt
  • 438 total downloads
  • Latest version: 8.0.0
Xml logger for JUnit v5 compliant xml report when test is running with "dotnet test" or "dotnet vstest".
JWT by: Alexander Batishchev, John Sheehan, Michael Lehenbauer
  • 2.638k total downloads
  • Latest version: 11.1.0-beta1
  • jwt json authorization
Jwt.Net, a JWT (JSON Web Token) implementation for .NET
K4os.Compression.LZ4 by: Milosz Krajewski
  • 622 total downloads
  • Latest version: 1.3.8
  • compression lz4
Port of LZ4 compression algorithm for .NET
K4os.Compression.LZ4.Streams by: Milosz Krajewski
  • 609 total downloads
  • Latest version: 1.3.8
  • compression lz4
Port of LZ4 compression algorithm for .NET
K4os.Hash.xxHash by: Milosz Krajewski
  • 128 total downloads
  • Latest version: 1.0.8
  • hash xxHash
xxHash hash implementation for .NET
Konscious.Security.Cryptography.Argon2 by: Keef Aragon
  • 223 total downloads
  • Latest version: 1.3.1
  • crypto cryptography argon2 argon2i argon2d argon2id password
An implementation of Argon2 winner of PHC https://password-hashing.net/#argon2 Usage follows standard types found in System.Security.Cryptography in corefx. Specifically DeriveBytes. C# Implementation of the Argon2 1.3 spec with variants for Argon2i, Argon2d, and Argon2id
Konscious.Security.Cryptography.Blake2 by: Keef Aragon
  • 189 total downloads
  • Latest version: 1.1.1
  • crypto cryptography hash blake2 blake2b
An implementation of Blake2 for .NET that integrates with the standard crypto libraries
KRE-CLR-x86 by: Microsoft
  • 54 total downloads
  • Latest version: 1.0.0-beta2
The K Runtime Environment for Desktop CLR x86
KRE-CoreCLR-x86 by: Microsoft
  • 56 total downloads
  • Latest version: 1.0.0-beta2
The K Runtime Environment for CoreCLR x86