Free Online Mouse Jiggler
Keep your computer awake straight from your browser. No download, no install, no sign-up — press Start and your screen stays on.
Runs locally in your browser via the Screen Wake Lock API — nothing is installed and no data leaves your computer. Want to minimize this window? Press Keep Awake When Minimized to pop out a small always-on-top mini-player; your screen stays awake as long as it remains on screen.
How the Online Mouse Jiggler Works
The tool uses your browser's built-in Screen Wake Lock API — the same mechanism video sites use to stop your screen from dimming during playback.
Press Start
One click requests a screen wake lock from your browser. No permissions popup, no account, no configuration.
Your Screen Stays Awake
While the jiggler is running, your operating system won't dim the display, start the screensaver, or lock the screen.
Stop Anytime
Press Stop or simply close the tab and your normal power settings take over again instantly. Nothing to uninstall.
Online Tool vs. Desktop App: What's the Difference?
The online jiggler is great for keeping your screen awake. But browsers cannot move your real mouse cursor or type keys — that's a security restriction every website has. For true activity simulation that keeps Teams, Slack, and time trackers showing you as active, you need the desktop app.
| Capability | Online Jiggler (this page) | Desktop App |
|---|---|---|
| Prevents screen sleep & screensaver | Yes | Yes |
| Moves the real mouse cursor | No (browser restriction) | Yes — randomized, human-like |
| Keeps Teams / Slack status active | No | Yes |
| Simulates keyboard & scrolling | No | Yes |
| Works with the window minimized | Yes — via the pop-out mini-player | Yes — runs invisibly in the system tray |
| App switching & browser tab switching | No | Yes (Ultimate) |
| Price | Free | From $7/mo — free trial |
Online Mouse Jiggler FAQ
Is this online mouse jiggler really free?
Yes. The online mouse jiggler is completely free, with no download, no installation, no sign-up, and no usage limits. It runs entirely in your browser using the Screen Wake Lock API.
How does the online mouse jiggler keep my computer awake?
It uses your browser's built-in Screen Wake Lock API, which tells your operating system not to dim or lock the screen while the tool is running. Nothing is installed and no data leaves your computer.
Does the online jiggler move my actual mouse cursor?
No. Web pages cannot move your real mouse cursor — that is a browser security restriction that applies to every website. The online tool prevents your screen from sleeping, but it cannot simulate system-level mouse or keyboard input.
To keep apps like Microsoft Teams or Slack showing you as active, you need the desktop Mouse Jiggler app, which moves the real cursor.
Will this keep my status active on Teams, Slack, or time trackers?
Not reliably. Those apps detect real mouse and keyboard input at the operating-system level, which a browser tool cannot generate. The online jiggler keeps your screen awake; for genuine activity simulation — mouse movement, keyboard activity, scrolling, and app switching — use the desktop Mouse Jiggler app.
Does the online mouse jiggler work if I minimize the browser tab?
Yes — use the mini-player. Press Keep Awake When Minimized after starting and a small always-on-top window pops out. As long as that mini-player stays on screen, your display stays awake even with the browser minimized or another app in front. Without it, browsers automatically release the wake lock when the tab is hidden and re-acquire it when you return.
The desktop app needs no visible window at all — it runs quietly in the system tray.
Which browsers support the online mouse jiggler?
All modern browsers: Chrome, Edge, Opera, Safari 16.4+, and Firefox 126+. If your browser does not support the Screen Wake Lock API, the tool will tell you when you press Start. The pop-out mini-player works in Chrome, Edge, Opera, and Safari; Firefox supports the basic jiggler but not the mini-player.