WebUtility Class

.NET Framework (current version)

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Provides methods for encoding and decoding URLs when processing Web requests.

Namespace:   System.Net
Assembly:  System (in System.dll)


public static class WebUtility


Converts a string that has been HTML-encoded for HTTP transmission into a decoded string.

System_CAPS_pubmethodSystem_CAPS_staticHtmlDecode(String, TextWriter)

Converts a string that has been HTML-encoded into a decoded string, and sends the decoded string to a TextWriter output stream.


Converts a string to an HTML-encoded string.

System_CAPS_pubmethodSystem_CAPS_staticHtmlEncode(String, TextWriter)

Converts a string into an HTML-encoded string, and returns the output as a TextWriter stream of output.


Converts a string that has been encoded for transmission in a URL into a decoded string.

System_CAPS_pubmethodSystem_CAPS_staticUrlDecodeToBytes(Byte[], Int32, Int32)

Converts an encoded byte array that has been encoded for transmission in a URL into a decoded byte array.


Converts a text string into a URL-encoded string.

System_CAPS_pubmethodSystem_CAPS_staticUrlEncodeToBytes(Byte[], Int32, Int32)

Converts a byte array into a URL-encoded byte array.

The HttpUtility class contains encoding and decoding utility methods for use with HTML-encode strings. The System.Uri class also contains methods and properties that can be used for similar purposes.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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