The Caffeine alternative for Mac
Caffeine's one-click simplicity, brought up to date with timers, a battery guard, and launch-at-login.
Caffeine is the classic, dead-simple coffee-cup toggle — and that's the whole appeal. nosleep keeps that one-click feel but adds timed sessions, a low-battery guard, lid-closed mode, and launch-at-login, all still free and still native.
Caffeine vs nosleep
| Caffeine | nosleep | |
|---|---|---|
| Price | Free | Free |
| Core interaction | On/off toggle | One-click toggle + timers |
| Timed sessions | No | Yes |
| Low-battery guard | No | Yes |
| Lid-closed mode | No | Yes, admin-gated |
| Launch at login | Yes | Yes |
| Account / cloud | None | None |
- Timed sessions — run forever, for a set duration, or until a deadline (Caffeine is on/off only)
- Low-battery guard so a forgotten session doesn't drain the battery flat
- Built-in lid-closed mode
- Actively maintained and notarized for current macOS
- Part of a wider subscription-free Mac catalog
- Iconic and extremely simple — click the cup, the Mac stays awake
- Tiny and familiar to long-time Mac users
- Free
you want Caffeine's simplicity plus timers, a battery guard, and confidence it's maintained for the latest macOS.
all you want is a single on/off toggle and Caffeine already works for you — nosleep won't change that core experience, it just adds options around it.
Quit Caffeine, download nosleep, click the menu-bar icon. Same one-click muscle memory; the extra features stay out of your way until you want them.
Common questions
Is there a modern alternative to Caffeine for Mac?
nosleep is a free, actively maintained keep-awake app that keeps Caffeine's one-click simplicity and adds timed sessions, a low-battery guard, lid-closed mode, and launch-at-login. It's notarized for current macOS.
Does nosleep support timed keep-awake sessions?
Yes. You can keep the Mac awake indefinitely, for a preset duration (for example 45 minutes), or until a deadline like 9am — something Caffeine's simple toggle doesn't do.
Will nosleep drain my battery if I forget it on?
It has a low-battery guard: when your battery drops to a threshold you set, nosleep lets the Mac sleep normally so a forgotten session doesn't flatten it.
Done renting Caffeine?
nosleep — keep your mac awake. Free, no account, no cloud. Yours to keep.