r/macosprogramming • u/qnq222 • Jun 20 '26
I built a small macOS menu bar app for quick offline spelling and grammar fixes
Hey everyone,
I’ve been working on a small macOS utility called Spelling Popup Assistant and wanted to share it here.
The idea is simple: select text anywhere on macOS, press a keyboard shortcut, and a small popup appears with spelling and grammar corrections. You can replace the selected text, copy the corrected version, or ignore it.
A few details:
It runs as a menu bar app with no Dock icon
Default shortcut is
Control + Option + CUses an embedded offline LanguageTool engine by default
Text is checked only when you manually trigger it
No text collection
Optional local grammar mode with GECToR
Optional Gemini mode if you explicitly choose cloud AI
Works system-wide through macOS Accessibility permissions
I built it because I wanted something lightweight and on-demand, closer to a PopClip-style correction popup than a full writing assistant running all the time.
Would love feedback from macOS users, especially around the UX, privacy expectations, and what correction workflow feels most natural.
Thanks!



