Komma

Komma is a native Mac CSV editor built with Swift. Open a CSV export, check or edit cells, and save the file directly as CSV. Find and replace and Undo/Redo sit in the same view, and CSV content is processed on the Mac.

It requires macOS 27.0.1 or later on Apple Silicon. The interface is available in English and Japanese.

A license is US$14.99 once, plus applicable tax, for one person on two Macs. The purchased 1.x version is perpetual, with 1.x updates included. Future major upgrades are not included. There is no free trial. A full refund can be requested within 14 days (336 hours) of payment. The app needs an initial online activation, then works for up to 30 days offline.