Features

• Easy to use API (see the tutorials).
• Password protection (legacy ZIP 2.0 encryption method; WinZip compatible AES 128, AES 192, AES 256 encryption methods).
• International characters in filenames (Unicode support).
• Supports large files (over 4GB).
• Wildcards support for adding, extracting and deleting files.
• Advanced file filtering using the FileSet class.
• Recursive directory tree operations.
• Both stream and file based operations.
• Possibility to access decompression stream directly.
• Create ZIP files in memory.
• Add data to ZIP file from stream or memory.
• Written in 100% pure .NET.
• Samples for command line, WinForms and ASP.NET.
• All samples available in C# and VB.NET.
• Add, extract, delete, move/rename files in ZIP archive.
• Move capability makes it possible to delete source item after successful transfer.
• 10 compression levels.
• ZIP archive shrinking.
• Events and delegates for effortless integration with your applications.
• Component source code available (C#).
• Deflate and Enhanced Deflate support (compatible with Deflate64(tm) by PKWARE).
• Read/write comments within ZIP file.
• Open self-extracting ZIP archives.
• Thread-safe.
• FIPS compliant mode in which only FIPS-approved modules are used.
• Support for asynchronous operations including .NET 4.x-style task-based API.
• Storing and restoring file dates and attributes (Read-only, Archive, Hidden and others).
• Ability to inflate (decompress) directly to in-memory byte array.
• Searching for files inside the archive by wildcard mask or FileSet (advanced file filter definition class).
• Support for IEnumerable<T> in ZIP item collections (required for using LINQ).
• All operations are done without any temporary files.
• Archive contents listings with complete file details (original size, compressed size, creation and last modification dates, CRC checksum, comment).
• Custom Deflate algorithm implementation - no dependency on any open-source ZLib compression libraries (unlike many others).
• GZipCompression stream and GZipDecompression stream with multiple files support.
• Zip.Options.RestoreDateTime property to make it possible to restore source date/time on target.
• FileSet.Flatten option (makes it possible to ignore source directory structure and copy all files into single target directory).

Compatibility

• Compatible with WinZip, PKZIP, Info-ZIP (and many others).
• 32bit and 64bit OS.
• .NET Framework 2.0, 3.0, 3.5, 4.0 and 4.5.
• .NET Compact Framework 2.0 and 3.5.

Licensing and support

• Royalty free redistribution.
• Includes 1 year support contract.
• Includes all new versions released during 1 year.

Samples

• Simple UnZIP Demonstrates how to extract all files from a ZIP archive.
• ZIP Info Command line utility that displays information about a ZIP archive.
• Windows Forms ZIP Extractor Easy-to-use Windows Forms ZIP Extractor.
• .NET CF ZIP Extractor Easy-to-use Windows CE/.NET Compact Framework ZIP Extractor.
• Windows Forms ZIP Extractor (with .NET 4.5 'await') Easy-to-use Windows Forms ZIP Extractor.
• ZIP Console Utility Simple command line ZIP archive manipulation utility.
• .NET CF ZIP Compressor Easy-to-use Windows CE/.NET Compact Framework ZIP Compressor.
• Web ZIP Archive Browser Simple ASP.NET application for ZIP archive browsing.
• Windows Forms ZIP Browser Full featured Windows Forms ZIP Browser.
• Windows Forms ZIP Browser (with .NET 4.5 'await') Full featured Windows Forms ZIP Browser.
• Simple ZIP Demonstrates how to create a ZIP archive and add files to it.
• Web ZIP Archive Uploader ASP.NET ZIP archive uploader and extractor.

What next?

• See the samples and tutorials.
• Download a trial version and evaluate it.
• Check product variants and pricing.