Comparison

Caffeine for Windows

Caffeine (Mac) only stops your device sleeping. If you also want to avoid showing away on Teams or Slack, you need real mouse movement. That's KeepOnDuty.

Download free FAQ

Free No sign-up 100% on your device

Key difference

Keeping awake isn't staying active

Caffeine and similar tools prevent sleep and the screensaver, but they don't reset the idle counter. That's why your screen can be on and you still show “away” in Teams. KeepOnDuty moves the mouse, so it resets that inactivity and your presence holds.

Features

Everything you'd expect from a mouse jiggler

Real movement

Moves the mouse at the operating-system level, not a fake cursor. Resets the inactivity timer for every app at once.

Schedules & work hours

Set your work hours (9–6, Mon–Fri) with simple schedules or cron. Blackouts for your breaks.

Stealth mode

Imperceptible micro-movements, random patterns and adjustable speed for natural behaviour.

Respects your activity

The moment you touch the mouse it steps aside; when you leave, it resumes on its own.

Private & local

Sends nothing to any server. Works 100% offline; everything stays on your device.

Free, no account

No sign-up, no cost, no ads. Download it, press Start and you're done.

FAQ

Frequently asked questions

Is there a Caffeine version for Windows?

There are “keep awake” clones for Windows, but KeepOnDuty goes further: it's free, runs on Windows and Mac, and prevents the away status by moving the mouse for real.

Why doesn't Caffeine stop me being marked away?

Because it only prevents sleep; it doesn't reset the mouse/keyboard inactivity that Teams, Slack or Discord use for your presence.

Is it free?

Yes.

For Windows

For macOS

Keep-awake vs stay-active

Microsoft Teams

Download