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World's Fastest .NET CSV Parser. Modern, minimal, fast, zero allocation, reading and writing of separated values (csv, tsv etc.). Cross-platform, trimmable and AOT/NativeAOT compatible.

Total Downloads
12.4M
12,427,237
Published
Apr 19, 2026
Latest stable version

Install

.NET CLI
dotnet add package Sep --version 0.12.5
Package Manager Console
Install-Package Sep -Version 0.12.5
PackageReference
<PackageReference Include="Sep" Version="0.12.5" />

Frameworks

net8.0 net9.0 net10.0

Dependencies

[4.1.5, )
[4.1.5, )
[4.1.5, )

Adoption guide

Assess this package against its supported frameworks, license, maintenance signals and dependency graph before making it a project standard.

Compatibility metadata lists 3 target frameworks; confirm the exact target used by your application.

How to read this guidance

Sources: published NuGet v3 registry metadata and explicit NuBrowse editorial guides. Refresh: package metadata is refreshed from NuGet when the page loads. Limit: this is not a security, legal or compatibility guarantee; validate the selected version in your project.

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