Use these tools right in your browser — no install, no signup, no app required. Made by the team behind Night Light X.
Online Night Light
Turn any screen — laptop, tablet, or browser — into a soft, customizable nightlight in seconds.
Color Temperature Picker
Visualize how warm and cool light look at every Kelvin value, from candlelight to noon sun.
Sleep Cycle Calculator
Work out the best time to fall asleep — or wake up — based on 90-minute sleep cycles.
All three tools are live and free — tap any card above to start. Want the complete experience? Download Night Light X for color, sound, AI stories, meditations, and home screen widgets all in one place.
Or skip the tools and get the app.
The full Night Light X experience — free on the App Store.