Fix grammar in any Mac app with free on-device AI
Fix spelling and grammar anywhere on your Mac. Select text, press the shortcut, and the corrected version replaces it where it sits. A second shortcut strips the AI slop out of anything that reads like a machine wrote it. @Mentions, dates and times are untouched. It runs on the model built into macOS. Nothing you select is uploaded. Needs macOS 26 with Apple Intelligence.
Tidy launched on Product Hunt on 2026-09-03 and has 122 upvotes and 11 comments so far.
This tool is described as free to use.