Caffeine1.6.4

Keep a Mac awake with Caffeine so the system stays out of sleep while an uninterrupted task or session is in progress. It prevents sleep from interrupting an unattended operation, an extended observation session, or access to a machine that must remain ready. People who leave a Mac running during presentation playback, long-running computation, file transfer, or remote access can use it to avoid that idle state.

Its role is deliberately narrow: Caffeine changes the computer’s sleep behavior while leaving the work being performed to the user’s other software. That focused approach suits anyone who needs a direct sleep-prevention control instead of a broader system suite.

Caffeine is a System Tools utility for MacOS, distributed as freeware in version 1.6.4. It requires macOS 14 Sonoma or later, so it runs on systems using that release or a newer one. The software supports both Intel and Apple Silicon architectures, covering Macs built on either processor family.