Zstandard.Native.Runtimes 0.2.0-rc.2

This is a prerelease version of Zstandard.Native.Runtimes.

There is a newer version of this package available.
See the version list below for details.

dotnet add package Zstandard.Native.Runtimes --version 0.2.0-rc.2

NuGet\Install-Package Zstandard.Native.Runtimes -Version 0.2.0-rc.2

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="Zstandard.Native.Runtimes" Version="0.2.0-rc.2" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Zstandard.Native.Runtimes" Version="0.2.0-rc.2" />
                    

                            Directory.Packages.props

<PackageReference Include="Zstandard.Native.Runtimes" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add Zstandard.Native.Runtimes --version 0.2.0-rc.2

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Zstandard.Native.Runtimes, 0.2.0-rc.2"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package Zstandard.Native.Runtimes@0.2.0-rc.2

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=Zstandard.Native.Runtimes&version=0.2.0-rc.2&prerelease
                    

                            Install as a Cake Addin

#tool nuget:?package=Zstandard.Native.Runtimes&version=0.2.0-rc.2&prerelease
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Zstandard.Native

Ultra-fast Native AOT-safe Zstandard wrapper for .NET 8, .NET 9, and .NET 10 — zero-allocation Span<byte> APIs, source-generated [LibraryImport] P/Invoke, and hardware-accelerated buffer paths via AVX-512 / AVX10.2 and ARM64 SVE.

Install

dotnet add package Zstandard.Native

You also need a libzstd binary on the loader path. See Native runtime binaries for options (companion runtime package, bring-your-own, or system package manager).

Quick start

One-shot compress / decompress

using Zstandard.Native;

ReadOnlySpan<byte> src = File.ReadAllBytes("data.bin");

byte[] compressed = new byte[ZstdCompressor.GetCompressBound(src.Length)];
int n = ZstdCompressor.Compress(src, compressed, compressionLevel: 3);

byte[] back = new byte[src.Length];
ZstdCompressor.Decompress(compressed.AsSpan(0, n), back);

Streaming with context reuse

using var compressor = new ZstdStreamCompressor(compressionLevel: 3);
Span<byte> outBuf = stackalloc byte[ZstdStreamCompressor.RecommendedOutputSize];

foreach (var frame in frames)
{
    compressor.Reset(); // reuses ZSTD_CCtx — no allocation
    var r = compressor.Compress(frame.Span, outBuf, ZstdEndDirective.End);
    sink.Write(outBuf[..r.BytesWritten]);
}

Features

Zero allocations on the hot path — Span<byte>-only public API
Native AOT compatible — every IL2xxx/IL3xxx warning is an error in CI; no reflection, no marshalling shims
SafeHandle lifetime management for ZSTD_CCtx / ZSTD_DCtx — finalizer-safe even on process abort
Streaming with Reset() context reuse — skips ZSTD_createCCtx per frame
Hardware acceleration via Vector512 (AVX-512 / AVX10.2) and SVE (ARM64 variable-width) for buffer scrub operations
Targets libzstd ≥ 1.5.0 on win-x64, win-arm64, linux-x64, linux-arm64, osx-x64, osx-arm64

Performance highlights

Scenario	Runtime	Throughput	Allocated
Stream compress, context reuse, 1 MiB	NativeAOT 10.0	12 510 MB/s	0 B
Stream compress, context reuse, 64 KB	NativeAOT 10.0	12 015 MB/s	0 B
One-shot compress vs ZstdSharp, 64 KB level 3	AOT 10.0	+37% faster	0 B vs 64 B
One-shot compress vs ZstdSharp, 1 MiB level 1	AOT 10.0	+37% faster	0 B vs 65 B

Full benchmark tables →

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
1.0.0	43	5/30/2026
1.0.0-rc.1	45	5/26/2026
0.2.0-rc.2	32	5/26/2026
0.2.0-rc.1	41	5/26/2026