The C# Zip Archive Library

Create ZIP See All 14 Code Examples

using IronZip;

// Create an empty ZIP
using (var archive = new IronZipArchive())
{
    // Add files to the ZIP
    archive.Add("./assets/image1.jpg");
    archive.Add("./assets/image2.jpg");
    archive.Add("./assets/image3.jpg");

    // Export the ZIP
    archive.SaveAs("output.zip");
}

Install-Package IronZip

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IronZIP

Nuget

Version 2025.2 released

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Cross Platform Support

Designed for C#, F#, & VB.NET running on .NET 9, 8, 7, 6, Core, Standard, or Framework

The C# Zip File Library

A C# ZIP Archive Library that prioritizes accuracy, ease of use, and speed.

IronZip is a leading C# ZIP archive library for creating, reading, and extracting archives in .NET. Its user-friendly API enables developers to easily add archive management functionality to .NET projects in minutes.

When you need to build, read, and extract archive, fast.

IronZIP Release Version 2025.2

Features & Upgrades

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Compatibility

.NET Versions

C#, VB.NET, F# Languages
.NET Core (9, 8, 7, 6, 5, and 3.1+)
.NET Standard (2.0+)
.NET Framework (4.6.2+)

.NET Project Types

Web (Blazor & WebForms)
Mobile (Xamarin & MAUI)
Desktop (WPF & MAUI)
Console (App & Library)

App Environments

Windows (10+, Server 2016+)
Linux (Ubuntu, Debian, CentOS, etc.)
iOS (12+)
Android API 21+ (v5 “Lollipop”)
Docker (Windows, Linux, Azure)
Azure (VPS, WebApp, Function)
AWS (EC2, Lambda)

IDEs

Microsoft Visual Studio
JetBrains ReSharper & Rider

OS & Processors

Windows, Mac, Linux, iOS, Android
x64, x86, ARM

Binary Certification

DigiCert Signed Binaries

Generating Archives

Supported Archives

ZIP
TAR
GZIP
BZIP2

Add Files

Add Images (jpg, png, gif, tiff, svg, bmp)
Add Text Files
Add Documents (PDFs, DOCX, XLSX)
Add Audio (MP3, WAV)
Add Compressed Files (ZIP archives within a ZIP archive)

Create & Export

ZIP (Create, Import & Export)
Password Protected ZIP (Traditional, AES128 & AES256)
TAR
GZIP
BZIP2

Compress Archives

Custom Compression (9 levels)

Editing Archives

Manage File Entries

Add File Entries (ZIP, TAR, GZIP & BZIP2)
Extract Archive (ZIP, TAR, GZIP & BZIP2)
Delete File Entries (ZIP)

File Entry Properties

Get & Set Comment
Get File Name

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