Support

Kernir is a free, open-source project. Questions, bug reports and ideas all go to GitHub Issues.

Report a problem

Open an issue on GitHub. Please include your macOS or iOS version, the Kernir version (Kernir › About Kernir), and what you expected to happen. If an archive opens incorrectly, a small sample file helps a lot.

Common questions

Can Kernir create RAR archives? No. RAR is a closed format, so Kernir can open RAR archives but not write them. Save as ZIP or 7z instead.

Will saving change my original archive? Only when you press ⌘S. Kernir writes the new archive to a temporary file first and replaces the original only once that has fully succeeded.

How do I make Kernir open archives on double-click? In Finder, select an archive, choose File › Get Info, set “Open with” to Kernir and click Change All.

Step-by-step guides

Browse the Mac archive guides for opening formats, extracting one file, converting RAR to ZIP and resolving password problems.