Mouse Jiggler for Chromebook: What Works on ChromeOS

A USB mouse jiggler is the mouse jiggler that works on a Chromebook. ChromeOS sets it up as a second mouse with no driver, so the pointer moves and the Chromebook stays awake and unlocked. A turntable mouse mover also works with an external mouse. Software jigglers do not: Windows and Mac apps do not run on ChromeOS, and a Chrome extension cannot move the real pointer. If you only want the Chromebook to stay awake, you do not need a jiggler. Open Settings > Device > Power, set When idle to Keep display on, and turn off Sleep when cover is closed if you work with the lid shut on an external screen.

For Slack, none of these keeps the dot green by itself. On a Chromebook Slack runs in a browser tab, and it counts input only inside that tab. Slack Green keeps your Slack status green from a server during the hours you set, with the Chromebook asleep.

What works on a Chromebook, and what does not

Web pages and extensions run inside Chrome's sandbox, which does not let them move the system pointer. At most they animate a cursor inside a page or ask Chrome to keep the screen on. ChromeOS's own idle timer never sees them as input.

Use a USB mouse jiggler on a Chromebook

• Plug the jiggler into a USB port. Most Chromebooks have USB-C only, so buy a USB-C jiggler or use a USB-C to USB-A adapter.
• Wait a few seconds. ChromeOS adds it like any mouse, with no prompt.
• Flip its switch if it has one. The pointer moves a pixel or two on its interval, usually under a minute.
• Test it: set When idle to turn the display off, leave the Chromebook alone for 10 minutes, and check the screen is still on.

A school or work Chromebook is managed from the Google Admin console. Admins can block USB devices by type. Plain mice are almost always allowed, since people plug in mice. If the jiggler's light comes on but the pointer never moves, the device is being blocked. How to use a mouse jiggler covers intervals and testing for every kind.

Keep a Chromebook awake without a jiggler

If the goal is a screen that stays on during a download, a long read or a video call, ChromeOS does it without any device:

On a managed Chromebook, these settings may be greyed out, because the admin sets the idle and lock times. Then a browser tab that holds a Screen Wake Lock, such as our online mouse jiggler, keeps the screen on while the tab stays visible, and an extension with Chrome's power permission does the same in the background. The extension route is covered in keep awake Chrome extension.

Does a mouse jiggler keep Teams or Slack active on a Chromebook?

Teams on a Chromebook runs in a browser tab or as the Android app. A web page receives mouse movement only while the pointer is over it, so for Teams in a tab, leave the pointer over the Teams tab while the jiggler runs. The Android app goes Away when it is not on screen, jiggler or not.

Slack in a Chromebook tab is stricter. It counts clicks, keys and scrolling inside the Slack tab only, and marks you away 10 minutes after the last one. A USB jiggler moving the pointer over another window changes nothing for Slack; it helps only when the pointer sits over the Slack tab. How to keep Slack active on a Chromebook covers the tab, the Android app and Chrome's Memory Saver, which can discard an idle Slack tab.

FAQ

Is there a mouse jiggler app for Chromebook? Not one that moves the real pointer. Extensions can keep the screen on, but only a USB jiggler or a physical mover makes ChromeOS see mouse movement.

Do Chromebook mouse jiggler extensions work? They keep the screen awake at best. They cannot move the system pointer, so apps that check for real input do not count them.

How do I stop my Chromebook from going to sleep? Settings > Device > Power, then set When idle to Keep display on, and turn off Sleep when cover is closed.