KeepingYouAwake

App Overview

Features

• Menu Bar Quick Control: A sleek icon in the menu bar allows for quick enable/disable of the no-sleep function.
• Flexible Timer Settings: Supports custom no-sleep durations (e.g., 5 minutes, 15 minutes, 1 hour) or "indefinitely" to keep the system awake.
• Lightweight Design: Built on macOS’s built-in caffeinate command-line tool, consuming minimal system resources and running reliably.
• Auto-Start Option: Can be set to launch at login for convenient daily use.
• Multi-Language Support: Offers interface support for multiple languages, including Chinese, to suit diverse user needs.

Advantages

• Completely Free and Open Source: Released under the MIT License, allowing free use, modification, and distribution.
• Highly Reliable: Directly invokes Apple’s official caffeinate tool, avoiding unofficial or undocumented APIs, ensuring system compatibility and security.
• Regularly Maintained and Updated: The project is actively maintained, with ongoing updates to support the latest macOS versions, bug fixes, and feature improvements.
• Simple and User-Friendly: No complex setup required—enable no-sleep mode with a single click, suitable for both novice and advanced users.
• Safe and Risk-Free: The tool itself poses no harm to your Mac, though developers note users assume all responsibility for usage.

Use Cases

• Long Downloads or File Transfers: Prevents Mac from sleeping during large file downloads or data synchronization.
• Presentation or Demo Mode: Keeps the screen on during meetings, presentations, or demonstrations.
• Background Tasks: Keeps the system awake while running scripts, compiling code, or rendering projects.
• Remote Access: Ensures your Mac remains active during remote sessions for stable connectivity.

Notes

• Lid-Closed Limitation: On MacBook devices, due to macOS system restrictions and thermal considerations, sleep cannot be prevented when the lid is closed (only applicable for desktop Macs or MacBooks with open lids).
• System Compatibility: The latest version supports macOS 10.13 and above. For older systems (e.g., macOS Sierra 10.12 or earlier), use historical versions (e.g., 1.6.2 or 1.5.2).
• Usage Risk: While built using official commands, developers assume no liability. Users accept all risks associated with usage.

Installation Method

2. Homebrew Install: Install quickly using the command brew install --cask keepingyouawake.

Inspiration

KeepingYouAwake was inspired by Lighthead Software’s Caffeine app. Due to the original app’s long lack of updates, the developer rebuilt this alternative in 2014, optimized for macOS Yosemite and leveraging the caffeinate tool.

Contributions and Support

The project welcomes community contributions! If you have suggestions for improvements or new features, please submit a Pull Request on GitHub. The developer appreciates any form of help.

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With KeepingYouAwake, you can easily manage your Mac’s sleep behavior, boost productivity, and enjoy the transparency and freedom offered by open-source tools.