YouTube Brightness Dimmer – Video Dark Mode

YouTube Brightness Dimmer is a simple and powerful Chrome extension that adds a brightness control directly inside the YouTube video player.
No need to change your screen settings—adjust the brightness per video, instantly, without leaving YouTube.

🔥 Key Features

Brightness button inside the YouTube player (next to the volume icon)

Native-looking slider, perfectly integrated with YouTube's UI

Minimal crescent-moon icon (Material-style)

Real-time brightness adjustment (CSS brightness filter applied live)

Fully compatible with Light Mode / Dark Mode

Works on all videos, full-screen and mini-player

Ultra-lightweight extension (under 25KB of code)

Designed to feel 100% native to YouTube

🎯 Why You Need This Extension

Reduce eye strain, especially in dark environments

Make YouTube more comfortable to watch at night

Lower brightness without affecting your entire screen

Gain precise control over the visual comfort of each video

Perfect for users sensitive to bright screens or white backgrounds

🛠️ How It Works

Install the extension

Open YouTube

A new brightness moon icon appears on the right side of the player

Click to open the slider

Adjust brightness instantly — it updates live

🔒 Privacy & Safety

No tracking

No analytics

No data collection

All settings are stored locally in your browser