Adjust Page Brightness icon

Adjust Page Brightness

by joue.quroi

v0.3.8 Updated Dec 9, 2025 119KiB
CWS
100K
Users
★ 4.01
180 reviews
#1098
of 207.1K
accessibility
#65 of 6.4K

Description

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. Features: 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. Notes: 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. What is the difference between this extension and other dark mode extensions (e.g. "Dark Reader™" or "Turn Off the Lights™" (I do not own these two extensions))? These extensions manipulate the styling of all elements by using custom stylesheets. They convert the light theme to dark. This extension only injects a filter to reduce or increase the original brighness. So it does not perform any resource-intensive operations and does not alter the website's styling.
Adjust Page Brightness screenshot 1Adjust Page Brightness screenshot 2

Reviews (33 cached)

★☆☆☆☆2026-01-28
Gustavo Añez

It actually do not increases the brightness of your screen. What it actually do is put it more white...I mean, the small light bulbs on your screen doesn't actually bright more...So it doesn't make sense to install this extension.

★☆☆☆☆2025-10-05
Brandon A (BRAZE)

Weirdly doesnt work for me at all

★☆☆☆☆2025-07-16
Amel Annisa

Doesn't dim videos on Chrome. I wish the developer could include the feature to reduce video brightness instead of just dimming the pages.

★☆☆☆☆2024-08-04
Jonas

Works, but Not... It can make the screen brighter, and some other darker.. nah.. it's not working.. you can't select one site or one widow for it...

★☆☆☆☆2024-06-10
panda bita

dosent work anymore

★☆☆☆☆2024-06-07
Banasihan

Doesn't work on some websites,has virus, overall sucks

★☆☆☆☆2024-01-26
Dalton “Wulfa” Snyder

DO NOT INSTALL/ADD THIS EXTENSION! things it will do: Lag your chrome, lag your computer, cause popups, break webpages, make certain URL's Unusable. Things this will not do: Make your browsing experience any mroe enjoyable. This is literally just a virus.

★☆☆☆☆2024-01-25
casey

this suckd

★☆☆☆☆2024-01-12
Sajith Premakumar

DO NOT ADD THIS EXTENSION. If you download this extension, you will be bombarded with a bunch of viruses.

★☆☆☆☆2023-12-23
4 4

Adds a bunch of viruses. This app is the worst

★☆☆☆☆2023-02-15
BG

Did not work when I used it, just annoying, none of the buttons worked.

★☆☆☆☆2021-12-02
Chee Lam

No use at all

★☆☆☆☆2021-11-02
Oguz Karahan

dont install gives avirus

★☆☆☆☆2021-08-19
Mauricio Martinez

Does not work on my hp Chromebook. The extension was installed but did not work .

★☆☆☆☆2021-03-18
Aisha B

it didnt work. wth; this is ###

★☆☆☆☆2019-12-09
Martin Ved-Viete-Kto

1/ I removed it from Chrome, but the brightness stayed low (the browser tab is still dimmed at the time it was set in the extension). 2/ I reinstalled it, but it didnt fix the problem, it looks like the new value is multiplying the old value. At 100% new value the screen is still dimmed at 80% old value.

★☆☆☆☆2018-05-31
Ale

Doesn't work

★☆☆☆☆2018-05-12
Gaji Sumon Hossain

It didn't work.

★☆☆☆☆2018-05-02
Trevor Hastings

This app BREAKS print viewing. ALL print preview pages will be completely blank, it isn't just cosmetic - printing anything from your browser will result in a blank page with this app on. This app alone was causing the problem. If you are unable to print anything from Chrome, remove this app & restart your browser.

★★☆☆☆2024-06-24
Jerome Grant

doesnt work for a LOT of PDFs, and does not adjust brightness of the address bar at all

★★☆☆☆2024-06-10
Meggie Hodgson

stopped working

★★☆☆☆2022-05-29
Arkar WINN MINN HTWE

Having 2 separate bars (daytime/nightime) is super annoying. There's no 1 single control. Most importantly, the brightness doesn't apply to fullscreen videos.

★★☆☆☆2022-01-21
ÈmpreSsa †

it's not working , fix the problem

★★☆☆☆2018-06-14
Hack Man

May be okay for what it was designed for, but I want to change the brightness of the whole display, not just one browser window

★★☆☆☆2018-03-27
saiba687

It works!

★★★☆☆2025-07-14
NW Social

Seems complicated, tried it two ways and don't think it adjusts the brightness at all just puts a grey shade over it, don't like it, may revisit

★★★☆☆2024-10-01
Juhiya 1

good but don't deserve 5 starts people are over reacting!

★★★☆☆2024-07-08
Jared Brogan

Doesn't work for full screen video players.

★★★☆☆2023-10-27
jsosmd

[Windows 10, Vivaldi3.6] Beautiful GUI but the button I needed for selecting only the site that I wanted to darken, "Enable Here" was greyed out and did not work. I could set it up to darken every website, but that's not what I wanted.

★★★☆☆2022-12-19
Abdullah Shakir

It’s somewhat helpful, but it seems like it’s in need of a complete rewrite. The buttons break if you press them too much; press the Disable Everywhere button about 4-5 times and then flip between Enable Here and Disable Here a few times and suddenly, no matter which on/off option it’s on, the brightness slider doesn’t work. Fidget around with it a bit more, (closing and opening it and clicking a few buttons) and it "fixes" again. It’s annoying, because it seems like the extention can’t decide whether it’s supposed to be working or not. Suggestions: • Fix the enable/disable problem. • Combine the sliders into one slider, and put the other nighttime, daytime, apply to all or only this domain, and start time functionality in a settings menu. • Modernize the interface.

★★★☆☆2022-12-14
Some Guy Online

It does it's job but the caveat is that it's breaking the baseline styles of some sites like Twitter; so for now, you just have to manually turn the plugin off for those domains. Fix this and you get 5 stars.

★★★☆☆2022-10-03
Donnie “di0__0ib”

stopped working properly about a month ago now it doesn't matter what times you set up within the extension it goes dim at midnight every night only way around it is to manually move the slider up to 100% and manually slide it back down when you want it to dim it completely ignores the app's built in scheduling this was a solid 5 stars before this

★★★☆☆2018-08-29
Muneeb Shayk

it will be more dashing

Permissions (5)

Permissions

activeTab Can access the current tab when you click the extension alarms Can schedule periodic background tasks idle Can detect when you're away from the computer scripting Can inject scripts into web pages storage Can store data locally in your browser

Details

Version 0.3.8
Updated Dec 9, 2025
Size 119KiB
First Seen Apr 1, 2026