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7-Zip vs Ark: catalog facts
7-Zip	Ark
Free Free software with open source. The site states you can use 7-Zip on any computer…	Free Free and open source as part of KDE Gear.
Windows, Linux, macOS, Command line	Windows, Linux
High compression ratio in the 7z format with LZMA and LZMA2 Packs 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM and unpacks dozens more, including RAR, ISO, MSI and…	Previews file contents without extracting Handles zip, 7z, rar, tar and disc images
The Linux and macOS builds are console versions; there is no official graphical app on those platforms The Windows interface has not changed much in twenty years	Fits best in a KDE Plasma desktop Some formats depend on external command-line tools being installed
Downloadable app	Downloadable app
Open source	Open source
License: LGPL-2.1	License: GPL-2.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.