IronZip provides a robust C# zip library for creating, reading and modifying archives. It supports ZIP, TAR, GZIP and BZIP2 formats and runs across Windows, macOS and Linux. Developers can embed archive functionality into ASP.NET sites, Windows services or desktop applications without calling external tools like 7‑Zip.

Key Features

• Create archives: Build ZIP, TAR, GZIP or BZIP2 archives programmatically. You can add files from streams, byte arrays or file paths. Compressed files of any type (images, documents, audio, video) can be nested inside an archive.
• Compression options: Choose from nine compression levels to balance speed and file size. Create password‑protected archives using Traditional encryption, AES‑128 or AES‑256.
• Edit archives: Add, extract, rename or delete file entries within existing archives. The API exposes file metadata (name, compressed size, comments) so you can manage entries individually.
• Cross‑platform compatibility: Signed binaries run on .NET 10–3.1 and .NET Framework 4.6.2+. The library is tested on Windows, macOS and Linux. Installation is via the NuGet package using Install‑Package IronZip.
• Simplicity & integration: Only one DLL is required—no external dependencies. Use it with C#, VB.NET or F#, and integrate with other Iron components (e.g., compress PDFs created by IronPDF or images processed by IronOCR).

2025 Change‑Log Highlights

IronZip’s updates in October 2025 focused on internal dependency refreshes to keep security libraries current. Earlier releases improved support for archive comments and resolved minor bugs. Although feature changes were modest, the consistent maintenance ensures compatibility with the latest .NET versions.

Tutorials and Resources

Begin with the IronZip documentation for installation and examples. The examples page shows how to create password‑protected archives, extract files and edit metadata. Licensing options and a free trial are available on the product page