Amphetamine is a little app that lives in your menu bar. With Amphetamine, you can effortlessly override your energy saver settings and keep your Mac awake.

- Keep your Mac (and optionally its display and drives) awake
- Choose from numerous activation time presets, or enter your own
- Keep your Mac awake while specific apps are running
- Schedule activation/deactivation for specific times of the day
- Activate/deactivate with a single click in the menu bar
- Activate automatically at launch login
- Activate when connected to specific WiFi networks
- Keep drives (HDDs/SSDs) connected to your Mac awake
- Use global hotkeys for activation/deactivation
- Receive alerts while Amphetamine is running or when it activates/deactivates
- Auto-deactivate when your Mac's battery drops below a set threshold
- Auto-activate when you connect your Mac's power adapter
- Allow/prevent screen saver
- Use your own status icons
- Custom notification sounds
- AppleScript support

Amphetamine supports Retina displays and OS X's dark mode.
Amphetamine is 100% free (no ads, no in-app purchases).

After you launch Amphetamine, you must activate it by clicking on its menu icon. If you do not activate Amphetamine, your Mac will sleep normally, per your energy saver settings.

Please note that keeping your Mac laptop awake while the lid is closed is not possible for an app from the Mac App Store.

Amphetamine requires OS X 10.8 Mountain Lion or higher.

What's New

Version 3.0.2

- Bug fixes and other minor improvements

- Option to send a notification on manual start/stop of session in Preferences
- Resolves an issue where some Preferences would not save
- Improves status icon quality on non-Retina displays in systems prior to Yosemite
- Other small bug fixes and improvements

- Set up an infinite number of Triggers, each with its own set of conditions
- Expanded schedule options for Triggers
- Trigger sessions and "single-use" sessions now operate independently
- New icons and sounds
- Hide/show icon in Dock option in Preferences
- Complete rewrite of application
- A bunch of little things you probably won't notice

Note: Amphetamine³ drops support for OS X 10.6 Snow Leopard and 10.7 Lion (sorry!) and now requires 10.8 Mountain Lion or higher.

Ratings and Reviews

4.8 out of 5

40 Ratings

40 Ratings

Righteous successor to Caffeine


Caffeine’s been the de facto sleep killing app for a long time, but it’s been all but abandoned for about 5 years. Found this app going through potential replacements and gave it a spin. It’s just plain great! It’s highly flexible, customizable and holy gouda it’s free!

I’ve had no issues with it and I’ve installed it on all my Macs. Absolutely worth it.

What Apple Should Have Done, and More

Thomas Hickerton

Big thanks to the lone wolf who developed Amphetamine, and made it available for free. Haven’t encountered any issues at all.

Very good work


Was a long Caffeine user.
Amphetamine is way better with more choices.
Keeping Drives awake is awesome!

Thank you for your great work


William Gustafson
3.4 MB
Age Rating
Rated 4+
© 2016 William C. Gustafson


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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