Description of Jiggler program at Mac Shareware: Jiggler is a little freeware utility that jiggles your mouse periodically, preventing sleep and screensavers from interrupting the jobs your computer is doing.

Jiggler is a little freeware utility that jiggles your mouse periodically, preventing sleep and screensavers from interrupting the jobs your computer is doing. No more having to change your sleep and screensaver delays back and forth in System Preferences -- just jiggle!

Jiggler is a completely free software. You can free download and use it as long as you like.