A mouse jiggler is a simple idea. Something moves your cursor now and then, your Mac thinks you're there, your Slack or Teams dot stays green. On Windows you download a thing and it just runs. On a Mac there's an extra step, and that extra step is where most people give up, leave a one-star review, and go back to nudging the mouse every four minutes by hand.
The extra step is fine, by the way. It's just badly explained.
Why Macs are their own story
macOS does not let software move your cursor by default. Any app that generates mouse or keyboard input needs your explicit sign-off under System Settings, then Privacy & Security, then Accessibility. You flip a toggle next to the app's name, you might type your password, and that's it. Once. It sticks through restarts and updates.
People see that prompt and assume the app is up to something. It isn't, or at least the prompt is no evidence either way. Apple gates synthetic input because software that can move your mouse and press your keys could, in the wrong hands, do a lot more than keep a dot green. So every automation tool on the platform walks through the same door: jigglers, auto clickers, window managers, the lot. It's a security gate, not a verdict. There's a longer explanation in why auto clickers need Accessibility permission on Mac, but the short version is: deliberate, universal, one-time.
The options, roughly in order of how often people try them
App Store jiggler apps. There are plenty. The catch is that App Store apps are sandboxed, and the sandbox restricts exactly the kind of system-level input a jiggler exists to produce. Some manage it within Apple's rules, some are hollowed-out versions of their own websites' apps, and a few keep the screen awake while not actually moving anything. Read the reviews before the description.
Hardware dongles. A USB jiggler pretends to be a mouse, and your Mac believes it, because it effectively is one. No permission prompt, no software. They work. You do pay actual money for movement an app does for free, your cursor drifts about with no regard for what it's hovering over, and a mystery USB device on a work laptop is its own conversation with IT.
The caffeinate command. Open Terminal, type caffeinate, and your Mac will not sleep until you stop it. Free, built in, genuinely useful. But it creates zero input. It keeps the machine awake while your chat status wanders off to Away regardless, because presence is about activity, not consciousness. More on that trap in keeping your Mac awake.
A proper desktop app. Distributed outside the App Store, so no sandbox, so it can create real input. Asks for Accessibility once, then wiggles the mouse or clicks somewhere harmless on a schedule. This is the category Green Dotter lives in, and (I would say this, but still) it's the one that actually holds up daily.
Mac quirks that bite
A few things trip people up even after the permission is sorted.
Display sleep and system sleep are separate settings on a Mac, with separate timers. Your jiggler's input generally resets both, but if the display timeout is set aggressively short, the screen can still dim between movements and make you think nothing is working. Then there's the lid. Close it and a MacBook sleeps, jiggler or not, unless it's plugged into power and an external display. No app moves a cursor on a sleeping machine.
On corporate Macs, MDM profiles can lock energy settings, block apps from certain sources, or pre-ban the Accessibility list entirely. If a toggle is greyed out, that's your IT department, not the app, and it's worth a polite ask rather than a workaround.
And the big one, because it catches everyone once: keeping the Mac awake is not the same as staying active. Caffeinate, Amphetamine-style menu bar apps, fiddled energy settings, all of these stop sleep and none of them create input. Slack and Teams go by input. Awake and Away is a completely normal, very annoying combination.
What a good Mac setup looks like
Real input, in a spot where it can't do damage, plus keep-awake, all from one app. That's the whole recipe. The input keeps your status green, the wake assertion keeps the machine on, and doing both in one place means there's nothing to forget.
Whether that input should be a gentle wiggle or an occasional click in a corner you've chosen is mostly taste. There's a proper comparison in mouse jiggler vs auto clicker if you want the trade-offs, but clicks in a safe area have the edge for anyone who hates watching their cursor twitch about on its own.
Where Green Dotter fits
Green Dotter is a free native Mac app, a universal build that runs on Apple Silicon and Intel alike. It does the wiggle if you want the classic jiggler feel, or it clicks inside a safe area you draw on screen, on a randomised schedule so it doesn't look robotic. Keep-awake is built in, so the display and the status are handled together rather than by two tools that don't know about each other.
The Accessibility step is explained in plain words inside the app: what macOS is asking, why, and which toggle to flip. One visit to System Settings and you're done. Everything runs locally on your Mac. No account, no cloud, nothing leaves the machine. There's also a Windows version, but this post was for the Mac people, who have earned it.
FAQ
Is there a free mouse jiggler for Mac?
Yes. Green Dotter is a free native Mac app that wiggles the mouse or clicks in a safe area you choose, with keep-awake built in. It runs locally with no account, works on Apple Silicon and Intel, and only needs the standard Accessibility permission granted once.
Why does a Mac mouse jiggler need Accessibility permission?
macOS treats software-generated mouse and keyboard input as sensitive, so any app that moves the cursor must be approved by you under System Settings, Privacy and Security, Accessibility. It is a deliberate security gate that applies to every automation tool, not a sign the app is dodgy. You grant it once and it sticks.
Does caffeinate work as a mouse jiggler?
No. The caffeinate Terminal command stops your Mac sleeping, but it generates no input at all. Slack and Teams watch for mouse and keyboard activity, so with caffeinate alone your screen stays on while your status still drifts to Away. Useful for downloads, not for presence.
Do hardware mouse jigglers work on a Mac?
Yes. A USB jiggler dongle presents itself as an ordinary mouse, so the Mac accepts its movement without any permission prompt. The trade-offs are cost, a constantly drifting cursor, no scheduling or safe-area control, and the fact that an unexplained USB device can raise more questions on a work machine than a visible app.
Will a mouse jiggler stop my Mac going to sleep?
Usually, because regular input resets the idle timers, but display sleep and system sleep are separate settings on macOS and an aggressive display timeout can still win between movements. An app with keep-awake built in, like Green Dotter, covers both sides: real input for your status and a wake assertion for the machine.
A note on workplace policies: how you handle presence depends on your role, your tools, and your employer's policies. Before relying on any presence or automation tool, make sure you understand what is allowed on your work device.
Related: download the Mac auto clicker or the Windows auto clicker.