7-Zip vs Ark

7-Zip is a file archiver for Windows, Linux, and macOS, offered at free with no registration or payment required. It creates and extracts 7z, XZ, BZIP2, GZIP, TAR, ZIP, and WIM archives, and can extract additional formats such as RAR, ISO, and VHDX. The 7z format uses LZMA and LZMA2 compression, and AES-256 encryption is available for 7z and ZIP files. Other listed capabilities include split archives, archive repair, portable use, and command-line tools. The Windows version includes Shell integration, a file manager, a command-line version, and a FAR Manager plugin. The software is open source; most code is under the GNU LGPL, with some under BSD licenses and an unRAR restriction applying to some parts. The maker says it can be used in commercial organizations without payment. It is localized in 87 languages. Developers can use the LZMA SDK, which includes documentation, samples, headers, libraries, and tools for applications using LZMA compression.

Ark is a free graphical utility for creating and managing compressed files and archives on Linux and Windows. It can browse, extract, create, and modify archives, and preview file contents without extracting them. Its listed formats include tar, gzip, bzip2, zip, rar, 7z, xz, rpm, cab, deb, xar, AppImage, and CD-ROM images. Ark also supports archive encryption, split archives, and command-line tools. The listed plan costs nothing, with no plan limits stated, and the application is licensed under GPL-2.0+. On Linux, KDE offers installation through AppStream stores, distribution package managers, and Flathub. KDE lists Windows as a platform and provides a Windows nightly installer for testing. Its help links include the Ark Handbook, UserBase Wiki, and KDE Forum; KDE also provides a bug-reporting link and access to the source code. KDE describes itself as an international community developing free and open-source software, represented for legal and financial matters by KDE e.V., a registered nonprofit in Germany.