There's a free map that shows you where the cameras are watching your car. Not traffic cameras. These ones photograph and log every single license plate that drives past, all day, every day.
It's called DeFlock, and most people have never heard of it. A privacy activist named Will Freeman started the project after he noticed strange little cameras going up on poles around his town. He couldn't get a straight answer about how many there were or who got to see the footage. So he built a map and asked everyone to help fill it in.
What these cameras do
These devices are called ALPRs, short for automatic license plate readers. Each one snaps a photo of every plate that passes, then logs the number, the time and the exact spot. String enough of them together across a city and you end up with a quiet, searchable record of everywhere a given car has been parked or driven over the past few months.
The biggest maker is a company called Flock Safety. Its cameras now sit on poles in thousands of American towns, often installed before most residents even know they are coming.
Police love them, because they do help solve real crimes, like finding a stolen car or tracing a kidnapper's route. Fair point. But the same system tracks everybody else too, the millions of drivers who did nothing wrong. That data can sit in a database for months, and it sometimes gets shared with other agencies you've never even heard of.
How the map works
DeFlock runs on OpenStreetMap, the free, editable map of the world that anyone can add to. Spot one of these cameras on your street, drop a pin, note which way it faces and it shows up for everyone. It's crowdsourced, the same way a wiki is. No company owns the data.
And it has caught on. DeFlock now lists close to 100,000 license plate readers mapped across the United States, plus a running tally of cities that have voted the cameras down. There's a phone app too, so you can check your own block in about ten seconds. Try it. You might be surprised how close the nearest one is.
404 Media Open Source Project Deflock Mapping License
Flock tried to shut it down
Flock Safety wasn't thrilled. In early 2025 the company sent Freeman a cease-and-desist letter, claiming the name DeFlock waters down its trademark. Basically, stop using a word that sounds like ours. Freeman said no. Backing him, the Electronic Frontier Foundation, a digital rights group, pointed out that mapping cameras sitting in public view is plainly legal and protected speech.
So the map stayed up. If anything, the fight handed it a wave of free publicity and volunteers kept adding pins. Trying to bury the thing just told more people it was there.
Electronic Frontier Foundation
Why you should care
Here's the thing. Surveillance you can't see is easy to ignore, and that's exactly why a tool like this matters. You can't push back on a camera network you never knew existed, and most towns rolled these out with barely a public vote. DeFlock doesn't break anything or hack anyone. It just writes down what's already bolted to the public poles in plain sight, then hands you the list.
Is it perfect? Nope. Actually, no volunteer-built map ever is, so a quiet town might show zero cameras when there are plenty on the ground. But as a free way to watch the watchers, frankly, it's one of the more useful things on the internet right now. Go find out what's on your street.
