DimWise

About

Tired of blinding white pages late at night? DimWise intelligently analyzes each page's background color and automatically adjusts brightness — bright pages get dimmed, dark pages are left untouched.

Unlike system-level brightness controls that affect your entire screen, DimWise works per-tab, so each website gets the right brightness without affecting anything else.

Features:

Content-aware auto mode — detects page luminance and dims bright pages automatically
Manual mode — set a fixed brightness level with a simple slider
Per-site custom settings — save different preferences for different websites
Live preview — see brightness changes in real-time as you drag the slider
Managed sites dashboard — view, manage, and remove all your custom site overrides in one place
Adjustable strength — control how aggressively auto mode reduces brightness, from subtle to aggressive
Dark mode detection — automatically re-adjusts when a site switches between light and dark themes
Zero permissions abuse — no data collection, no network requests, everything stays local in your browser
Lightweight — no frameworks, no dependencies, pure vanilla JS under 15KB total