System.IO 4.0.10-beta-22816
Provides base input and output (I/O) types, including System.IO.Stream, System.IO.StreamReader and System.IO.StreamWriter, that allow reading and writing to data streams
Commonly Used Types:
System.IO.Stream
System.IO.IOException
System.IO.EndOfStreamException
System.IO.FileNotFoundException
System.IO.MemoryStream
System.IO.StreamReader
System.IO.StreamWriter
System.IO.StringWriter
System.IO.TextWriter
System.IO.TextReader
Showing the top 20 packages that depend on System.IO.
| Packages | Downloads |
|---|---|
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NETStandard.Library
A set of standard .NET APIs that are prescribed to be used and supported together. This includes all of the APIs in the NETStandard.Platform package plus additional libraries that are core to .NET but built on top of NETStandard.Platform.
When using NuGet 3.x this package requires at least version 3.4.
|
732 |
|
NETStandard.Library
A set of standard .NET APIs that are prescribed to be used and supported together.
18a36291e48808fa7ef2d00a764ceb1ec95645a5
When using NuGet 3.x this package requires at least version 3.4.
|
712 |
|
Microsoft.DotNet.PlatformAbstractions
Abstractions for making code that uses file system and environment testable.
|
659 |
|
System.Reflection
Provides types that retrieve information about assemblies, modules, members, parameters, and other entities in managed code by examining their metadata. These types also can be used to manipulate instances of loaded types, for example to hook up events or to invoke methods.
Commonly Used Types:
System.Reflection.MethodInfo
System.Reflection.PropertyInfo
System.Reflection.ParameterInfo
System.Reflection.FieldInfo
System.Reflection.ConstructorInfo
System.Reflection.Assembly
System.Reflection.MemberInfo
System.Reflection.EventInfo
System.Reflection.Module
When using NuGet 3.x this package requires at least version 3.4.
|
218 |
|
System.Text.Encoding.CodePages
Provides support for code-page based encodings, including Windows-1252, Shift-JIS, and GB2312.
Commonly Used Types:
System.Text.CodePagesEncodingProvider
When using NuGet 3.x this package requires at least version 3.4.
|
174 |
|
System.Security.Cryptography.Cng
Provides cryptographic algorithm implementations and key management with Windows Cryptographic Next Generation API (CNG).
Commonly Used Types:
System.Security.Cryptography.RSACng
System.Security.Cryptography.ECDsaCng
System.Security.Cryptography.CngKey
30ab651fcb4354552bd4891619a0bdd81e0ebdbf
When using NuGet 3.x this package requires at least version 3.4.
|
151 |
|
System.Net.Security
Provides types, such as System.Net.Security.SslStream, that uses SSL/TLS protocols to provide secure network communication between client and server endpoints.
Commonly Used Types:
System.Net.Security.SslStream
System.Net.Security.ExtendedProtectionPolicy
When using NuGet 3.x this package requires at least version 3.4.
|
143 |
|
System.Text.Encoding.CodePages
Provides support for code-page based encodings, including Windows-1252, Shift-JIS, and GB2312.
Commonly Used Types:
System.Text.CodePagesEncodingProvider
When using NuGet 3.x this package requires at least version 3.4.
|
125 |
|
System.Data.Common
Provides the base abstract classes, including System.Data.DbConnection and System.Data.DbCommand, for all data providers.
Commonly Used Types:
System.DBNull
System.Data.Common.DbConnection
System.Data.Common.DbException
System.Data.Common.DbParameter
System.Data.DbType
System.Data.Common.DbDataReader
System.Data.Common.DbCommand
System.Data.Common.DbTransaction
System.Data.Common.DbParameterCollection
System.Data.Common.DbProviderFactory
When using NuGet 3.x this package requires at least version 3.4.
|
118 |
|
System.Linq.Expressions
Provides classes, interfaces and enumerations that enable language-level code expressions to be represented as objects in the form of expression trees.
Commonly Used Types:
System.Linq.Expressions.Expression<TDelegate>
System.Linq.Expressions.Expression
System.Linq.Expressions.MemberExpression
System.Linq.Expressions.ExpressionVisitor
System.Linq.Expressions.MethodCallExpression
System.Linq.IQueryable<T>
System.Linq.IQueryable
System.Linq.Expressions.NewExpression
System.Linq.Expressions.ParameterExpression
System.Linq.Expressions.ConstantExpression
When using NuGet 3.x this package requires at least version 3.4.
|
112 |
|
System.Xml.XmlDocument
Provides an older in-memory Extensible Markup Language (XML) programming interface that enables you to modify XML documents. Developers should prefer the classes in the System.Xml.XDocument package.
Commonly Used Types:
System.Xml.XmlNode
System.Xml.XmlElement
System.Xml.XmlAttribute
System.Xml.XmlDocument
System.Xml.XmlDeclaration
System.Xml.XmlText
System.Xml.XmlComment
System.Xml.XmlNodeList
System.Xml.XmlWhitespace
System.Xml.XmlCDataSection
When using NuGet 3.x this package requires at least version 3.4.
|
105 |
|
Newtonsoft.Json
Json.NET is a popular high-performance JSON framework for .NET
|
105 |
|
System.IO.FileSystem
Provides types that allow reading and writing to files and types that provide basic file and directory support.
Commonly Used Types:
System.IO.FileStream
System.IO.FileInfo
System.IO.DirectoryInfo
System.IO.FileSystemInfo
System.IO.File
System.IO.Directory
System.IO.SearchOption
System.IO.FileOptions
When using NuGet 3.x this package requires at least version 3.4.
|
99 |
|
System.Reflection
Provides types that retrieve information about assemblies, modules, members, parameters, and other entities in managed code by examining their metadata. These types also can be used to manipulate instances of loaded types, for example to hook up events or to invoke methods.
Commonly Used Types:
System.Reflection.MethodInfo
System.Reflection.PropertyInfo
System.Reflection.ParameterInfo
System.Reflection.FieldInfo
System.Reflection.ConstructorInfo
System.Reflection.Assembly
System.Reflection.MemberInfo
System.Reflection.EventInfo
System.Reflection.Module
When using NuGet 3.x this package requires at least version 3.4.
|
98 |
|
System.Security.Cryptography.Csp
Provides cryptographic algorithm implementations and key management with Windows Cryptographic API (CryptoAPI).
Commonly Used Types:
System.Security.Cryptography.RSACryptoServiceProvider
System.Security.Cryptography.CspParameters
When using NuGet 3.x this package requires at least version 3.4.
|
95 |
|
System.Security.Cryptography.Algorithms
Provides base types for cryptographic algorithms, including hashing, encryption, and signing operations.
Commonly Used Types:
System.Security.Cryptography.Aes
System.Security.Cryptography.RSA
System.Security.Cryptography.RSAParameters
System.Security.Cryptography.HMACSHA1
System.Security.Cryptography.SHA256
System.Security.Cryptography.SHA1
System.Security.Cryptography.SHA512
System.Security.Cryptography.SHA384
System.Security.Cryptography.HMACSHA256
System.Security.Cryptography.MD5
System.Security.Cryptography.HMACSHA384
System.Security.Cryptography.HMACSHA512
When using NuGet 3.x this package requires at least version 3.4.
|
91 |
|
System.Reflection.Emit
Provides classes that allow a compiler or tool to emit metadata and optionally generate a PE file on disk. The primary clients of these classes are script engines and compilers.
Commonly Used Types:
System.Reflection.Emit.AssemblyBuilder
System.Reflection.Emit.FieldBuilder
System.Reflection.Emit.TypeBuilder
System.Reflection.Emit.MethodBuilder
System.Reflection.Emit.ConstructorBuilder
System.Reflection.Emit.GenericTypeParameterBuilder
System.Reflection.Emit.ModuleBuilder
System.Reflection.Emit.PropertyBuilder
System.Reflection.Emit.AssemblyBuilderAccess
System.Reflection.Emit.EventBuilder
When using NuGet 3.x this package requires at least version 3.4.
|
90 |
|
System.Linq.Expressions
Provides classes, interfaces and enumerations that enable language-level code expressions to be represented as objects in the form of expression trees.
Commonly Used Types:
System.Linq.IQueryable<T>
System.Linq.IQueryable
System.Linq.Expressions.Expression<TDelegate>
System.Linq.Expressions.Expression
System.Linq.Expressions.ExpressionVisitor
When using NuGet 3.x this package requires at least version 3.4.
|
85 |
|
System.Private.DataContractSerialization
Internal implementation package not meant for direct consumption. Please do not reference directly. Provides implementation of System.Runtime.Serialization packages.
When using NuGet 3.x this package requires at least version 3.4.
|
84 |
|
System.Security.Cryptography.Primitives
Provides common types for the cryptographic libraries.
Commonly Used Types:
System.Security.Cryptography.ICryptoTransform
System.Security.Cryptography.AsymmetricAlgorithm
System.Security.Cryptography.SymmetricAlgorithm
System.Security.Cryptography.HashAlgorithm
System.Security.Cryptography.KeyedHashAlgorithm
System.Security.Cryptography.HMAC
System.Security.Cryptography.KeySizes
System.Security.Cryptography.CryptographicException
System.Security.Cryptography.CipherMode
System.Security.Cryptography.PaddingMode
System.Security.Cryptography.CryptoStream
System.Security.Cryptography.CryptoStreamMode
When using NuGet 3.x this package requires at least version 3.4.
|
84 |
Any 0.0
- System.Runtime (>= 4.0.20-beta-22816)
- System.Text.Encoding (>= 4.0.10-beta-22816)
- System.Threading.Tasks (>= 4.0.10-beta-22816)
| Version | Downloads | Last updated |
|---|---|---|
| 4.3.0 | 91 | 09/28/2026 |
| 4.3.0-preview1-24530-04 | 35 | 12/11/2025 |
| 4.1.0 | 41 | 09/28/2026 |
| 4.1.0-rc2-24027 | 38 | 12/12/2025 |
| 4.0.11-beta-23516 | 41 | 12/12/2025 |
| 4.0.11-beta-23409 | 39 | 12/12/2025 |
| 4.0.11-beta-23225 | 36 | 12/11/2025 |
| 4.0.10 | 40 | 12/12/2025 |
| 4.0.10-beta-23109 | 35 | 12/11/2025 |
| 4.0.10-beta-23019 | 39 | 12/11/2025 |
| 4.0.10-beta-22816 | 38 | 12/11/2025 |
| 4.0.10-beta-22605 | 39 | 12/11/2025 |
| 4.0.10-beta-22416 | 37 | 12/11/2025 |
| 4.0.10-beta-22231 | 9 | 09/30/2026 |
| 4.0.0 | 43 | 12/11/2025 |
| 4.0.0-beta-23109 | 40 | 12/11/2025 |
| 4.0.0-beta-23019 | 42 | 12/12/2025 |