YouTube Ambilight


This extension will surround YouTube videos with ambilight inside your browser. No need for extra hardware like lightstrips or smart lights, it’s all in your browser!
And it works on both the classic and new YouTube layout.


A video card with a score of at least 5000 points in the PassMark G3D Mark benchmark is recommended.
Check your video card’s score here:
With a score lower than 5000 the extension will still work but it is likely that the YouTube video page will be slow and/or stuttering.


1. Ambilight
– Blur
– Spread

2. Black bars
– Remove black bars
– Also remove colored bars
– Fill video to screen width

3. Video
– Size (scale/zoom)
– Shadow

4. Video page content
– Shadow
– Hide when scrolled to top
– Hide in theater mode
– Hide scrollbar

5. Quality
– Synchronization (Energy, Balanced, High, Perfect)

6. General
– Switch to the light theme when turned off
– Enabled/Disabled

Advanced features:
1. Ambilight
– Edge size
– Fade out start
– Fade out curve
– Debanding (noise/dithering)

2. Directions
– Top, right, bottom, left

3. Filters
– Brightness
– Contrast
– Saturation

4. Black bars
– Black bar detection offset
– Black bar size (manual control)
– Reset black bars next video

5. Video page content
– Shadow only on text and buttons
– Images transparency

6. Quality
– Show framerate
– Limit framerate (per second)
– Sync video with ambilight
– Smooth motion (frame blending)

7. General
– Enable in fullscreen


You view the source code and can contribute to this open source project at

Privacy & Security

This extension only runs on tabs that start with the url The extension will only activate the ambilight effect on YouTube’s /watch page

The only requests being sent are crash reports to No other requests are sent to any webserver, website or api.
While doing so we take into account your Do Not Track preference. For more information about Do Not Track visit

YouTube Ambilight
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