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BlaCKout

By galulex

Enable deep dark mode for web pages and dev tools. Saves energy with OLED screens like on Mac M1 Pro.

View Chrome Web Store

Time on the storeAbout 3 years or moreA rough range, not an exact date

Store users975As shown on the Chrome Web Store

Chrome Web Store rating4.8 / 518 ratings on the Chrome Web Store

Last store update15 Jun 2025Version 2.0, 16 months ago

Inside the extension

Product image 1 of 3

Reviews

Abdulaziz Ashammari6 months ago
perfect
Ángelo M6 months ago
Very good implementation!
Dmytro Syvoglaz9 months ago
Best 😎
Harly Walsh15 months ago
You are an angel. Magnificent. Would be nice if we could change font colour though, and be able to whitelist pages.
AllNightGamer15 months ago
Blacks out youtube amazingly!
Alex St16 months ago
Best Dark Mode Extension Yet BlaCKout delivers a deep, eye-friendly dark mode that's perfect for OLED screens. It’s smooth, energy-efficient, and thoughtfully designed. The tabless mode is a great bonus for focused browsing. A must-have for devs and dark mode fans!
Hossam Ismail16 months ago
Best OLED friendly dark mode hands down, especially since it has little to no effect on performance but there's a major issue with it. Using it on Edge completely breaks DRM content for example on YouTube, and even in web-based applications from Windows Store like Netflix which is why I'm giving it two stars because I have to inconveniently disable/enable it whenever I need to watch any DRM content.
Kragi16 months ago
perfect for oled monitors, i can turn every dark page into full black
Rifqi Abdillah17 months ago
Before using this extension, all time i using another dark mode extension, I figured out to 'why not using native chrome flags and improve it' and keep asking this while using the extension. Until found this extension, and i think this is better than most of the dark mode chrome extension. Better in memory safe, color inversion algorithm ( because all is using the native chrome flags :) ). So, i think i will more recommend this extension to other, if they want to adding some excluding feature (blacklist or whitelist). Good Job Devs !
L M18 months ago
Works very well if you want dark mode for OLED screens all of the time. However, I would like an additional feature to disable dark mode if the system is set to Light mode. Occassionally I have to take this unthinkable step because OLED screens aren't as bright as their counterparts so I need the Light theme for Windows when I am in a sunny environment, even in the shade.
Dighawaii “Dighawaii”2.2 years ago
Dear developer- Enabling the extension is great! Except that it breaks RTX HDR converted video, dropping it back down to non-HDR. With RTX HDR, internet streamed videos, like youtube and twitch, that are in SDR get upscaled to HDR , which is amazing! This, coupled with RTX VideoSuperResolution are real game changers. But enabling this extension, which also enhances the experience, causes the video to skip NVIDIA video processing or something. Any possibility of making it work?
Adrian Skar2.4 years ago
great, wish there was one for Firefox
Orkun Kaan Şimşek2.5 years ago
Sometimes it does not work for background colors. For example in forum.donanimhaber.com the background is still orange.
Rodrigo Cândido2.5 years ago
Really great extension. Simple and efficient. I would like to see an improvement when clicking the icon to change from dark to normal immediately after clicking it. Since the dark mode is activated as default in all sites, I have to click twice, as the first time it ask to reload the page and sometimes goes darker (all black) prior to displays the page's layout with its normal color scheme.
Gareth Owen3.1 years ago
Great extension - I was used to another browser that allowed "Force Dark" and this does the same.