How to control your Mac's volume with keyboard shortcuts, per app

Direct answer: the Mac's built-in volume keys can't touch one app on their own. The F10–F12 keys and Control Center only move a single master output level, so they raise, lower, or mute everything at once. To bind a keyboard shortcut to one app's volume — Spotify down, a call up, the browser muted — you install a per-app mixer and assign a hotkey to each app. This guide covers what the Mac's own keys actually do, the real apps that add per-app shortcuts in 2026, and the fastest way to ride app levels without leaving the keyboard.

This is one of the first things that bites people coming from Windows, where the volume slider and per-app mixer have lived a click apart for years. On a Mac the keys feel like they should do more than they do. They're well made — Apple even hides a few modifier tricks in them — but they all point at the same place: one output level for the whole machine.

What the Mac's volume keys actually do (and the hidden modifiers)

The three media keys on a Mac keyboard are mute (F10), volume down (F11), and volume up (F12). They move the system output in 16 steps, and that's the entire built-in story. There is no key, and no Settings pane, that lets you say "only turn Spotify down." A few modifiers make the keys nicer without changing that fact:

Useful tricks, but notice the right-hand column never changes. Every one of them acts on the single output macOS exposes. That's the gap: the keyboard is the fastest controller on your desk, and macOS gives it exactly one volume to control.

Why per-app shortcuts need a third-party app

macOS mixes every app down to one output stream before the volume keys ever see it. By the time you press F11, there's nothing left to target individually — the mix has already happened. To get a shortcut that affects one app, something has to sit a layer earlier, give each running app its own level, and expose those levels to a hotkey. That's precisely what a per-app mixer does. The built-in keys can't do it because, by design, they operate after the point where apps are still separate.

If you want the full technical version of why this layer is missing, read how to set a keyboard shortcut to mute an app on Mac — it walks through the same idea for the narrower case of muting.

Your real options for per-app volume shortcuts in 2026

A handful of apps add the per-app layer macOS is missing, and several of them now expose it to the keyboard. They're honestly not all the same shape, so here's the straight comparison:

Two honest notes. SoundSource is excellent and deep — version 6 added user-configurable keyboard shortcuts, including adjusting an app's volume from the keyboard, so it's a real option here, not just a menu-bar tool. It costs $49 one-time and, as of version 6, requires macOS 15 or later. Background Music is genuinely free and gives every app a slider, but you reach those sliders from the menu bar; it doesn't ship global per-app volume hotkeys. eqMac is free and built around an equalizer, with some hotkey support, but its center of gravity is EQ and its menu-bar popup, not keyboard mixing.

So the real choice isn't "which app has keyboard shortcuts" — a couple of them do now. It's how much of the app is built around the keyboard, how much it costs, and how far back it runs.

How keyboard-first per-app volume works in Fader

Fader's whole design starts from the keyboard rather than bolting shortcuts onto a menu-bar app. You hit a global toggle hotkey and the keyboard becomes a mixer: each app gets a vertical column of keys. The Q/A/Z column is one app, W/S/X the next, and so on — top key up, middle mutes, bottom down. You ride several apps' levels with letter keys and dismiss the overlay when you're done, without ever moving your hand to the mouse or hunting through a menu.

That's the difference that decides whether you actually use per-app volume twenty times a day or forget it's installed. A menu-bar slider is a five-step trip — reach the menu bar, click the icon, find the row, drag, dismiss — every single time. A keyboard mixer is one toggle and a tap. For the handful of apps you adjust constantly across calls, music, and video, the keyboard-first approach is the one that sticks.

Setting up per-app volume shortcuts

The setup is short regardless of which mixer you pick. The pattern is the same:

1. Install the mixer and grant it the audio permission macOS asks for on first launch.
2. Confirm the apps you care about appear as separate channels (anything playing audio should show up).
3. Assign the shortcut. In Fader you set the global toggle key once; in a menu-bar app like SoundSource you bind volume-up/down/mute shortcuts per app in its settings.
4. Test it live: start audio in two apps, trigger your shortcut, and confirm only the target app moves.

Once it's set, "drop the music and bring up the call" stops being a mouse errand and becomes muscle memory. If your main goal is silencing distractions rather than balancing levels, the related guide on silencing distracting apps with one keypress covers that workflow specifically.

When the menu bar is enough

Keyboard shortcuts win when you change the mix often. If you set a level once in the morning and leave it, a menu-bar slider — or even each app's own volume control — is perfectly fine, and Background Music does that for free. Be honest with yourself about how often the mix actually changes. If it's a few times a week, you don't need hotkeys. If it's a few times an hour, the keyboard is the whole point.

Bottom line

The Mac's own volume keys will never control one app — they sit after the mix, where every app has already become a single output. For per-app shortcuts you need a mixer that adds the missing layer: Background Music if free and menu-bar-driven is enough, SoundSource if you want a deep paid tool and you're on macOS 15, or Fader if you want the keyboard itself to be the mixer at a lower one-time price and support back to macOS 14.4. If reaching the control in a single keystroke is what you're after, that's exactly what Fader is built for.