KeyStruck

A floating glass HUD names every keyboard shortcut you fire — so you don't have to squint at the menu-bar flash to confirm. Double-tap Command and KeyStruck shows you every shortcut the active app has bound.

• Names every shortcut: Hit any keyboard shortcut bound to a menu item — Save, Quit, Reload, anything — and KeyStruck flashes the action's name in a floating capsule. No more "wait, did that fire?"
• Glass that fits the OS: Real frosted-glass HUD with a specular highlight, inner-curve shadow, and edge fresnel — the way a macOS overlay should look. Auto-flips light/dark for contrast against your UI.
• Cheat sheet on demand: Double-tap ? and hold the second press for half a second. KeyStruck lists every ?-shortcut the active app has bound, grouped by menu. Add ?, ?, or ^ while holding to filter to that combination. Click any row to fire the action.
• Reads the action from your menu. Uses the macOS Accessibility API to pick up menu titles from the frontmost app — works in any native app whose menus are AX-exposed.
• Cheat-sheet rows are clickable. Click any shortcut to fire its menu action without touching the keyboard. KeyStruck doesn't steal focus from the source app — the action lands where you want it.
• Optional shortcut prefix. Display "?S Save" or just "Save" — your call. Special keys (arrows, F-keys, return, escape) are formatted as you'd expect.
• Light, dark, or auto. Auto picks the opposite of your system mode, so the capsule always contrasts your UI.
• Frosted glass or flat fill. Translucent vibrancy by default; switch to a solid capsule with adjustable opacity if you prefer something simpler.
• Pop animation, sound, position. Optional spring-scale entrance, six built-in macOS sounds, seven screen positions.
• Stays out of the way. Lives quietly in the menu bar — or hide it entirely. Optional Start at login. Featherweight pure SwiftUI + AppKit; tiny binary, instant launch, no background services.