While the full BortleBuddy app is in development, our interactive light pollution map is live and free for everyone. Find dark sky locations anywhere on Earth using real Bortle scale data from the Falchi et al. 2015 World Atlas — the same scientific dataset used by astrophotographers, observatories, and dark-sky advocates worldwide.
Bortle ratings for any location on Earth
SQM, Bortle class, Milky Way visibility, and star count
Find the nearest dark sky from your home in seconds
Discover the darkest skies anywhere in the world, rated and ranked automatically. Our AI scans light pollution data globally to find the nearest pristine dark sky site to any location.
Weather, moon phase, and Milky Way position — analysed in real time. Know the exact window when conditions align for that perfect shot.
One clear answer — EXCELLENT, OKAY, or SKIP — so you never waste a trip. Our AI weighs dozens of variables to give you a single, trustworthy verdict.
Alerts for celestial events, meteor showers, and rare dark-sky windows. Get notified when something extraordinary is about to happen in your sky.
We'll let you know the moment BortleBuddy is ready.