The C# Zip Archive Library

Go beyond basic compression. Get cross-platform archive management for .NET 10 to create, read, and extract multiple archive formats.

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Handle ZIP, TAR, GZIP, and BZIP2 archives
Customize compression levels and password protection
Deploy on Windows, Mac, Linux, iOS, & Android
Free 30-day trial, full features, no credit card

Create ZIP

See All 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");
}

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");
}

Imports IronZip

' Create an empty ZIP
Using archive As 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")
End Using

PM >Install-Package IronZip

Install-Package IronZip

See what’s new:Changelog

Works with AI Coding Agents

Claude
Codex
GitHub Copilot
Cursor
Antigravity
Other coding agents

Runs Inside Your Infrastructure

No MCPs or external processing. IronZIP runs inside your application, keeping documents in your control.

AI-ready Documentation

Clear documentation, API references, and tutorials help coding agents use IronZIP effectively.

Built for Enterprise Workflows

Add enterprise-grade document capabilities where accuracy, consistency, and control matters.

Cross Platform Support

Designed for C#, F#, & VB.NET running on .NET 10, 9, 8, 7, 6, 5, Core, Standard, or Framework

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.

Get your free 30-day Trial Key instantly.

Compatibility

.NET Versions

C#, VB.NET, F# Languages
.NET Core
.NET Standard
.NET Framework

.NET Project Types

Web
Mobile
Desktop
Console

App Environments

Windows
Linux
iOS
Android
Docker
Azure
AWS

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
Add Text Files
Add Documents
Add Audio
Add Compressed Files

Create & Export

ZIP
Password Protected ZIP
TAR
GZIP
BZIP2

Compress Archives

Custom Compression

Editing Archives

Manage File Entries

Add File Entries
Extract Archive
Delete File Entries

File Entry Properties

Get & Set Comment
Get File Name

Why IronZIP

The .NET archive library with AES-256 encryption built in. Create, read, and extract ZIP, TAR, GZIP, and BZIP2 archives in C#.

Broad format support

4 archive formats: ZIP, TAR, GZIP, BZIP2 in a single library.
Add any file type: images, text, PDFs, DOCX, XLSX, audio, even nested ZIPs.
Create, read, edit, and extract archives in one API.

Outcome: One library for every archive format your project will ever need.

Up & running in 5 mins

PM > Install-Package IronZip
```
Install-Package IronZip
```
→ 5-minute quick starts.
Simple API: new IronZipArchive(), archive.Add(), archive.SaveAs().
Smart defaults: standard compression out of the box, configurable when you need it.

Outcome: Ship archive features this sprint, not next quarter.

Enterprise performance

.NET 10, Core, Standard, or Framework
C#, VB.NET, F# supported. DigiCert signed binaries.
Deploys anywhere: Windows, Linux, macOS, iOS, Android, Docker, Azure, AWS.

Outcome: Scale from desktop tools to mobile apps to enterprise document processing.

Built for security and control

Password-protect ZIPs with Traditional, AES128, or AES256 encryption.
9 configurable compression levels: tune size vs. speed per archive.
Edit archive entries: add, delete, get and set file comments at the entry level.

View Code Examples

Developer-first support & licensing

Perpetual license: buy once, use forever. Optional updates and renewals.
24/5 engineer support (24/7 in Premium). Real humans, median chat response <1 min.
30-day money-back guarantee. Not the right fit? Full refund, no questions.

Chat With an Engineer

For builders

Features you'll actually use:
- create/read/extract archives
- AES-256 password protection
- add files of any type
- add & delete entries
- extract to file or stream
- ZIP, TAR, GZIP, BZIP2
- 9 compression levels
- nested ZIP support
- get & set entry comments
- get entry filenames
Works everywhere: Windows, Linux, macOS, iOS, Android, Docker, Azure, AWS.

(30 days, fully-functional product)

For buyers

Trusted by millions of engineers across the Iron Suite.
AES-256 encryption built in: audit-ready for regulated industries.
Mobile-ready: Xamarin and MAUI support out of the box.
Procurement-friendly: perpetual license, optional renewals, invoice available, multiple payment options (incl. local: Amazon Pay, Alipay, Apple Pay, iDEAL, SEPA, ACH).
30-day money-back guarantee.

See Licensing