System.IO 4.0.11-beta-23409
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 |
|---|---|
|
Microsoft.DotNet.PlatformAbstractions
Abstractions for making code that uses file system and environment testable.
|
523 |
|
NETStandard.Library
A set of standard .NET APIs that are prescribed to be used and supported together.
d318b764a689cfe285d8484bda918646905664e7
When using NuGet 3.x this package requires at least version 3.4.
|
1,039 |
|
Newtonsoft.Json
Json.NET is a popular high-performance JSON framework for .NET
|
430 |
|
Newtonsoft.Json
Json.NET is a popular high-performance JSON framework for .NET
|
535 |
|
System.Diagnostics.FileVersionInfo
Provides the System.Diagnostics.FileVersionInfo class, which allows access to Win32 version resource information for a physical file on disk.
Commonly Used Types:
System.Diagnostics.FileVersionInfo
When using NuGet 3.x this package requires at least version 3.4.
|
575 |
|
System.IO.Compression
Provides classes that support the compression and decompression of streams.
Commonly Used Types:
System.IO.Compression.DeflateStream
System.IO.Compression.GZipStream
System.IO.Compression.CompressionMode
System.IO.Compression.CompressionLevel
System.IO.Compression.ZipArchiveEntry
System.IO.Compression.ZipArchive
System.IO.Compression.ZipArchiveMode
When using NuGet 3.x this package requires at least version 3.4.
|
234 |
|
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.
|
1,227 |
|
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.
|
1,210 |
|
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.
|
1,095 |
|
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.
|
1,262 |
|
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.
|
1,328 |
|
System.Reflection.Metadata
This packages provides a low-level .NET (ECMA-335) metadata reader. It's geared for performance and is the ideal choice for building higher-level libraries that intend to provide their own object model, such as compilers.
Commonly Used Types:
System.Reflection.Metadata.MetadataReader
System.Reflection.PortableExecutable.PEReader
|
611 |
|
System.Security.Claims
Provides classes that implement claims-based identity in the .NET Framework, including classes that represent claims, claims-based identities, and claims-based principals.
Commonly Used Types:
System.Security.Principal.GenericIdentity
System.Security.Claims.Claim
System.Security.Claims.ClaimsIdentity
System.Security.Claims.ClaimsPrincipal
System.Security.Principal.GenericPrincipal
When using NuGet 3.x this package requires at least version 3.4.
|
1,057 |
|
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.
|
2,214 |
|
System.Security.Cryptography.X509Certificates
Provides types for reading, exporting and verifying Authenticode X.509 v3 certificates. These certificates are signed with a private key that uniquely and positively identifies the holder of the certificate.
Commonly Used Types:
System.Security.Cryptography.X509Certificates.X509Certificate2
System.Security.Cryptography.X509Certificates.X509Certificate
System.Security.Cryptography.X509Certificates.X509ContentType
System.Security.Cryptography.X509Certificates.StoreLocation
System.Security.Cryptography.X509Certificates.StoreName
System.Security.Cryptography.X509Certificates.X509FindType
System.Security.Cryptography.X509Certificates.X509ChainStatus
System.Security.Cryptography.X509Certificates.X509Certificate2Collection
System.Security.Cryptography.X509Certificates.X509EnhancedKeyUsageExtension
System.Security.Cryptography.X509Certificates.X509Chain
When using NuGet 3.x this package requires at least version 3.4.
|
1,073 |
|
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.
|
650 |
|
System.Xml.ReaderWriter
Provides provides a fast, non-cached, forward-only way to read and write Extensible Markup Language (XML) data.
Commonly Used Types:
System.Xml.XmlNodeType
System.Xml.XmlException
System.Xml.XmlReader
System.Xml.XmlWriter
System.Xml.IXmlLineInfo
System.Xml.XmlNameTable
System.Xml.IXmlNamespaceResolver
System.Xml.XmlNamespaceManager
System.Xml.XmlQualifiedName
When using NuGet 3.x this package requires at least version 3.4.
|
904 |
|
System.Xml.XDocument
Provides the classes for Language-Integrated Query (LINQ) to Extensible Markup Language (XML). LINQ to XML is an in-memory XML programming interface that enables you to modify XML documents efficiently and easily.
Commonly Used Types:
System.Xml.Linq.XElement
System.Xml.Linq.XAttribute
System.Xml.Linq.XDocument
System.Xml.Linq.XText
System.Xml.Linq.XNode
System.Xml.Linq.XContainer
System.Xml.Linq.XComment
System.Xml.Linq.XObject
System.Xml.Linq.XProcessingInstruction
System.Xml.Linq.XDocumentType
When using NuGet 3.x this package requires at least version 3.4.
|
902 |
|
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.
|
1,984 |
|
System.Xml.XPath
Provides the classes that define a cursor model for navigating and editing Extensible Markup Language (XML) information items as instances of the XQuery 1.0 and XPath 2.0 Data Model.
Commonly Used Types:
System.Xml.XPath.XPathNavigator
System.Xml.XPath.IXPathNavigable
System.Xml.XPath.XPathNodeType
System.Xml.XPath.XPathNodeIterator
System.Xml.XPath.XPathExpression
System.Xml.XPath.XPathResultType
System.Xml.XPath.XPathException
System.Xml.XPath.XPathDocument
System.Xml.XPath.XPathItem
System.Xml.XPath.XPathNamespaceScope
When using NuGet 3.x this package requires at least version 3.4.
|
582 |
MonoAndroid 1.0
- No dependencies.
MonoTouch 1.0
- No dependencies.
.NET Framework 4.6
- No dependencies.
Xamarin.iOS 1.0
- No dependencies.
Xamarin.Mac 2.0
- No dependencies.
.NETPlatform 5.0
- System.Runtime (>= 4.0.20)
- System.Text.Encoding (>= 4.0.0)
- System.Threading.Tasks (>= 4.0.0)
.NETCore 5.0
- System.Runtime (>= 4.0.20)
- System.Text.Encoding (>= 4.0.10)
- System.Threading.Tasks (>= 4.0.0)
- System.Threading (>= 4.0.0)
- System.Text.Encoding.Extensions (>= 4.0.0)
- System.Globalization (>= 4.0.0)
| Version | Downloads | Last updated |
|---|---|---|
| 4.3.0 | 50 | 12/28/2025 |
| 4.3.0-preview1-24530-04 | 6 | 08/04/2025 |
| 4.1.0 | 1,242 | 03/01/2021 |
| 4.1.0-rc2-24027 | 6 | 08/03/2025 |
| 4.0.11-beta-23516 | 6 | 08/04/2025 |
| 4.0.11-beta-23409 | 6 | 08/04/2025 |
| 4.0.11-beta-23225 | 6 | 08/04/2025 |
| 4.0.10 | 4 | 10/26/2025 |
| 4.0.10-beta-23109 | 6 | 08/04/2025 |
| 4.0.10-beta-23019 | 6 | 08/04/2025 |
| 4.0.10-beta-22816 | 5 | 08/04/2025 |
| 4.0.10-beta-22605 | 6 | 08/04/2025 |
| 4.0.10-beta-22416 | 6 | 08/04/2025 |
| 4.0.10-beta-22231 | 6 | 08/05/2025 |
| 4.0.0 | 4 | 06/26/2025 |
| 4.0.0-beta-23109 | 5 | 08/07/2025 |
| 4.0.0-beta-23019 | 5 | 08/07/2025 |