Caffeine - Keep Awake

Prevent screen dimming or activating a screen saver by overriding power-saving settings to keep the system or display awake
What is Caffeine - Keep Awake?
Caffeine - Keep Awake is a Chrome extension designed to prevent your system or display from entering a sleep or power-saving state. It operates either at display level, preventing screensavers or dimming, or system level, keeping the entire system awake. Features include the option to set a wake period, keeping the system awake during downloads, and the system reverting back idle upon completion of tasks. This extension is useful for uninterrupted connections during a download, maintaining screen activity during presentations and reading, or simply when you need your computer to stay awake without manually changing power settings.

Extension stats

Users: 50,000+
Rating: 4.36 (14)
Version: 0.2.7 (Last updated: 2024-09-12)
Creation date: 2020-05-26
Risk impact: Very low risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 3
Permissions:
  • storage
  • power
  • idle
  • contextMenus
  • alarms
  • offscreen
Size: 139.26K

Other platforms

Not available on Firefox
Caffeine - Keep Awake (v0.2.7)
5.00 (1) 16,309+
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Extension summary

This extension prevents your operating system from entering hibernate or sleep mode by offering two levels of operation:

  1. "Display" level: It prevents single or multiple monitors from dimming or displaying screensavers.
  2. "System" level: It prevents the entire system from entering the power-saving state.

Key features of the extension include:

  1. Operation on display or system level.
  2. Ability to keep the system awake for a specified period (ranging from 5 minutes to 24 hours) and then allow it to sleep.
  3. Capability to keep the system awake while downloading a file, ensuring uninterrupted downloads even when you're not actively present. The system will transition to the idle state once the download is complete.

The extension provides an inactive toolbar button. Click the button once to activate the "keep awake" state and prevent the system from sleeping. Clicking the button again will release the system back to its default state. To change the level of operation, use the right-click context menu options. When the extension is disabled, it does not alter your computer's power settings (PC, Mac, or ChromeOS). However, if enabled, the extension overrides these settings and prevents the system from entering sleep mode.

Notes: The ability of this extension to prevent your computer from going into sleep mode when the lid is closed may vary based on the operating system. Some operating systems allow background activities even when the lid is closed, while others do not. For example, older Chromebooks suspend all activities when the lid is closed.

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User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Keeps PC awake as intended
  • Useful for avoiding auto-lock features
  • Easy to use
Cons
  • "System level" feature doesn't work as expected on Windows 11
  • Display shuts off despite settings
Most mentioned
  • Functionality for keeping PC awake
  • Issues with Windows 11 compatibility
Recent reviews

works for me
by Juhiya 1, 2024-07-28

better extension which has the timer
by Nico Zhang, 2024-06-24
View all user reviews

Extension safety

Risk impact

Caffeine - Keep Awake is safe to use. It does not request any sensitive permissions.

Risk likelihood

Caffeine - Keep Awake has earned a good reputation and can be trusted.

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Promo images

Caffeine - Keep Awake small promo image
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