Key54
Pick the one app you reach for constantly. Hold the right-Command (⌘) key to summon it — hold again to switch back.
Use the key on your keyboard or click and hold the button above.
54 is the macOS keycode for the right ⌘
key — rarely used and mostly idle, making it the perfect
key to modify, and a logical name for this app.
Hold the right ⌘ key — no chord, no clicks, no palette to search. Pure muscle memory.
The same hold that summons your app sends you back — even if it wasn't running yet.
A short, deliberate charge before it fires, so switching never feels frantic.
Quick taps and normal right-⌘ shortcuts pass straight through — only a deliberate hold fires.
No Dock icon, no menu bar clutter. Starts at login and stays out of the way.
One forgiving key hold is genuinely simpler — a real accessibility win.
Pick the one app you're always dropping into and back out of. The pattern is always the same: summon, do the thing, dismiss.
Need to look something up mid-sentence? All your browsing sessions come forward exactly as you left them — no new window, no search box.
Glance at a message and reply, then drop straight back into focus — without getting sucked in and losing the thread of deeper work.
A thought worth capturing never means hunting for the right window — jot it down while it's still fresh.
Run a quick install or git command mid-task, check a deploy. The full terminal with every tab and session, not a stripped-down drawer.
Bind Claude or your AI chatbot of choice — ask a question or paste a snippet, and come back with the answer.
Save any Shortcut you've built as an app (File → Add to Dock) and bind it — mute your mic, start a timer, run whatever you've automated.
Key54 gives a single dedicated key to the app you most often switch in and out of mid-task. It's made to work alongside your favorite launcher, not replace it.
Popular toolsrcmd · Manico · Karabiner-Elements · Hammerspoon · Tuna · Keyboard Maestro
Map a keyboard shortcut to a specific app — from a key plus a letter to a fully custom config. The closest idea to Key54.
No chord and no letter to remember.
Popular toolsSpotlight · Raycast · Alfred · LaunchBar · Quicksilver · Sol · Monarch
Pop open a search box, type a few letters, and pick your app from the results — usually alongside files and other commands.
No box to summon and nothing to type.
Popular tools⌘-Tab · Mission Control · AltTab · Contexts
Bring up everything you've got open as a strip or grid, then cycle through with the keyboard and land on the window you want.
Nothing to cycle through or choose — and it works even when the app isn't already open.
Popular toolsLaunchpad · Apps (macOS Tahoe) · LaunchOS · Launchie · AppGrid Launcher · Folder Peek
Fill the screen with every app you've installed as a paged grid, then scan the icons and click to launch.
No grid to open and no wall of icons to scan through.
No Dock icon to hunt for — open Key54 again from Applications or Spotlight any time to change these.
On first launch, macOS asks for Accessibility access — that's how Key54 watches the right ⌘ key. It's listen-only, open source, and nothing ever leaves your Mac.
No upsell, no account, no data collection — 100% free and
open source.
If Key54 earns a spot on your Mac…