Free Pkzip Software

7-Zip by Igor Pavlov

7-Zip is a file archiver with the highest compression ratio. The program supports 7z, ZIP, RAR, CAB, ARJ, CPIO, RPM, DEB, GZIP, BZIP2 and TAR formats. Compression ratio in the new 7z format is 30-50% better than ratio in ZIP format. Also 7-Zip compresses to ZIP 2-10% better than PKZip and WinZip. 7-Zip has additional powerful command line version and FAR Manager support.

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PicoZip Recovery Tool by Softchitect

PicoZip Recovery Tool is an easy-to-use program that can help you recover lost or forgotten passwords from password protected Zip files created by compression utilities like PicoZip, WinZip, PKZip, etc. Self-extracting Zip files are also supported. You have a choice of Brute Force or Dictionary based recovery methods. A 650,000+ words English dictionary is included.

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TURBO ZIP CRACKER by FDRLab Data Recovery Centre

Recovering lost passwords to ZIP archives created with WinZip, PKZip, WinRAR or any other ZIP-compatible software

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ZipForge by ComponentAce

Fast ZIP compression library. ZipForge Personal is free for personal use. No DLLs, SFX, repair, encryption, Zip64, splitting and multi-spanning support

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JustZIPit by Free-Backup-Software.net

Have you often felt that ZIP programs are just unnecessarily complicated? Have you ever tried to explain to your mother how to use WinZIP? Well, that's exactly what inspired the creating of "JustZIPit", the world's easiest ZIP tool.

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CAM UnZip by CAM Development

Unzipping (and zipping) made easy... and free... Finally! CAM UnZip is an easy-to-use ZIP file utility that opens, creates and modifies ZIP files quickly and easily. Features include: UnZip any ZIP file archives quickly and easily List files in the archive, extract all or selected files Create new ZIP files and easily add/remove files to/from them Password protected ZIP file support Optionally run setup automatically after unzipping

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Crypt4Free by SecureAction Research, LLC

Crypt4Free (freeware) is files encryption software with ability to encrypt files and text messages. Support for ZIP files and ability to secure delete sensitive files. Skinnable user friendly interface.

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zlib by ComponentSpot

Zlib is a free general-purpose data-compression library. Integrity checks performed with the CRC-32 or the ADLER 32 checksums. In-memory operations use the zlib compressed data format (RFC 1950). Deflate (RFC 1951) is used for its compression algorithm. Typical compression ratios are between 2:1 and 5:1. The gzip format, RFC 1952, is supported for compressing files on a file system. Lacks support for PKZip 4.5, BZip2, and Deflate64.

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