Memory- and span-related types

Starting with .NET Core 2.1, .NET includes a number of interrelated types that represent a contiguous, strongly typed region of arbitrary memory. These include:


For earlier frameworks, Span<T> and Memory<T> are available in the System.Memory NuGet package.

For more information, see the System.Buffers namespace.

Working with memory and span

Because the memory- and span-related types are typically used to store data in a processing pipeline, it is important that developers follow a set of best practices when using Span<T>, Memory<T>, and related types. These best practices are documented in Memory<T> and Span<T> usage guidelines.

See also