Adjust Screen Brightness

Adjust Screen Brightness

Control your browser's global screen brightness to use sites that do not support the native dark theme

What is Adjust Screen Brightness?
"Adjust Screen Brightness" is a Chrome extension that empowers users to manually control the overall brightness of their browser. This extension is helpful for websites that do not support a native dark theme. By allowing users to increase or decrease the brightness levels, it enables a comfortable web browsing experience, especially while reading online documents. It provides separate settings for daytime and nighttime use, and even gives the option to disable the extension on specific websites, or entirely at the user's discretion.
Users: 90,000+
Rating: 4.04 (147)
Version: 0.3.2 (Last updated: 2023-09-11)
Creation date: 2020-04-14
Risk impact: Low risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 3
  • activeTab
  • scripting
  • storage
  • alarms
  • idle
Size: 97.29K
URLs: Website
Stats date:

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Adjust Screen Brightness
Adjust Screen Brightness (v0.3.2)
4.36 (42) 3,681+
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This extension reduces or increases the screen brightness level for both daytime and nighttime periods based on user-defined values. It helps the websites that do not support the native dark theme. Also, it can increase the brightness of websites that are too dark. It reduces the eyestrain while reading documents online when dark mode is not supported. The extension offers two different values for daytime and nighttime duration to enhance usability.


  1. Control the darkness level of all websites or just a single hostname
  2. You can increase or decrease the brightness level of a website
  3. Supports keyboard shortcuts for every action.
  4. You can disable the extension on a single website or entirely
  5. Control the brightness level from 0% (completely dark) to 120% (20% brighter than the original)
  6. Supports two different methods to decrease the brightness level.


  1. By setting the brightness level to 100%, the extension does not affect browser tabs (does not inject any CSS styling)
  2. It is recommended to configure the start time for both daytime and nighttime. By default, daytime starts at 08:00, and nighttime starts at 19:00.
  3. By adding a website to the exception list, brightness control is turned off for this website. You can use this feature to turn off the extension on websites that support native dark mode.
  4. This extension does not reduce the screen brightness when printing a webpage. There is a CSS selector that only affects "screen" type displays.
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User reviews
User reviews summary
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.
  • Straightforward interface
  • Works well
  • Good for controlling brightness
  • Causes lag
  • May bombard with viruses
  • Buttons may break or not work properly
Most mentioned
  • Lag
  • Viruses
  • Buttons not working properly
Recent reviews
by Daniel Thompson Daniel Thompson, 2024-04-04

seems to work and and straight forward interface. 10/10 for app design and development. :-D
by Leonidas Trebuchet Leonidas Trebuchet, 2024-03-29

dont install gives avirus
by hello hello, 2021-11-02
View all user reviews
Risk impact

Adjust Screen Brightness is relatively safe to use as it requires very minimum permissions.

Risk likelihood

Adjust Screen Brightness has earned a good reputation and can be trusted.

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