Adjustments
30%
0%
6500K
100%
100%
0px
100%
Presets P
Filters
Grayscale mode
Sepia mode
Invert colors I
Apply to full screen D
⚡ Quick Mode
⏱ Auto-Dim Timer
Schedule
Auto-dim schedule
History H
No history yet
Usage Stats
Today: 0m
All time: 0m
Sessions: 0
Keyboard Shortcuts
DToggle fullscreen overlay PCycle presets IToggle invert GToggle grayscale SToggle sepia ZUndo last change HShow/hide history RReset to defaults ↑/↓Adjust dimming ±5 ←/→Adjust warmth ±5 1-8Quick preset select 0Turn off overlay
Preview Area

About ScreenDim

What is ScreenDim?

ScreenDim is a screen brightness and blue light overlay tool that helps reduce eye strain during nighttime computer use. Apply a warm color filter directly in your browser.

How to use ScreenDim?

Adjust the dimming level and color temperature using simple sliders. ScreenDim applies an overlay to your screen that reduces blue light emission, similar to night mode on phones.

Why use ScreenDim?

Blue light from screens disrupts your circadian rhythm and causes eye strain. ScreenDim provides an instant browser-based solution for more comfortable nighttime screen use.

Is it free?

Yes! ScreenDim is completely free with no signup required. Your data stays in your browser.

🔗 Related Tools