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Computers, Software, Freeware, Data Compression - zipdiff. An open source Java utility for comparing two zip files.

https://zipdiff.sourceforge.net/

Free zip utility for Windows - ZipGenius

Computers, Software, Freeware, Data Compression - ZIPGenius. A full-featured ZIP program with SFX and ZIP-64 support.

https://www.zipgenius.it/

ZipItFree supports virtually all compression formats including Zip, Exe, Tar, Cab, gZip, Lha, Ace, Rar and over 15 additional formats. You can use ZipItFast! to access almost all the files you download from the Internet.

http://zipitfast.com