Zipeg is free alternative to WinZip, WinRar.

Zipeg supports:

* Formats: ZIP, RAR, 7z, ARJ, LHA, TGZ, TAR and many many more.

* Pictures and Photos - preview them instantly or open in external application.

* Filenames in your national alphabet.

Features

* supports wide variety of archive formats: ZIP, RAR, ARJ, LHA/LZH, 7z, TAR, GZ, TGZ, BZIP2, CPIO, RPM, ISO, CHM, Z, CBR, CBZ, WAR, EAR...
* allows to see what's inside archive BEFORE extracting files;
* opens files in Preview or any other associated application directly from the archive;
* displays image thumbnails (EXIF) in tooltips;
* extracts/unzips items simply by dragging them;
* easy-to-use user interface;
* resource fork, file permissions and Finder attributes support for Mac OSX;
* supports filenames in national alphabets in UTF-8, Unicode and codepage encodings;
* processes archives in background;
* does not have any archive size limitations;
* allows to explore CD and DVD ".iso" image files;
* reports cumulative contents size of subfolders;
* gives fine control over customizable destination of extraction;
* automatically opens nested archives;
* opens archives via file types associations;
* provides `path completion` for destination folders;
* sorts content of folders by name, size or date;
* automatically checks for latest updates;
* universal binaries for Apple Macintosh OS X;
* Full Mac OSX and Windows XP/Vista support;
* Build on top of powerful 7zip engine;