Cool Light
A cool, daylight-balanced light that fills the screen to help you feel awake and focused, or to give photos a clean, neutral look. Set brightness and color temperature separately to land on the exact daylight tone you want.
What you can use it for
- Stay alert during daytime work with crisp, cool light
- Get neutral lighting for product or document photos
- Brighten a workspace like a small task light
- Counter a dim, warm room during the day
How it works
- 1. Customize. Open the Customize panel to set text, colors, theme, and animation speed to your liking.
- 2. Go fullscreen. Click Fullscreen for an immersive, distraction-free display on any screen.
- 3. Done. No login, no install, nothing to download — it runs instantly in your browser and your settings are remembered.
Frequently asked questions
When is cool light useful?+
Cool, daylight-toned light is energizing, so it suits daytime focus, detailed work, and clean, neutral photography.
Can I fine-tune it?+
Yes. Brightness and color temperature are independent sliders, so you can dial in the precise tone you want.
More display & light tools
White Screen
Fill your whole display with pure white in one click.
Black Screen
Turn your whole display solid black in one click.
Red Screen
Fill the display with solid red to test color and pixels.
Green Screen
Fill the display with solid green for color and pixel checks.
Blue Screen
Fill the display with solid blue for color and pixel checks.
Gradient Background
A still, fullscreen color gradient from curated palettes.
Zoom Light
Use your screen as an adjustable key light for video calls.
Selfie Light
A bright, adjustable fullscreen light for selfies and makeup.
Warm Light
A soft, warm fullscreen light that's easy on the eyes.