✕ Sparrow Send: private messaging NEW End-to-end encrypted 1:1 messages with no phone number and no email, just a key made in your browser. The server only relays sealed ciphertext it can't read. Open Send in the menu to start a chat. What to buy — plug-and-play picks NEW Don't want to build? One recommended device per job — radar detector, camera (IR / webcam / IP), plane, drone, radio — and connect a radar detector right in your browser, no app. Radar & speed traps, live BETA A red dot appears where a police speed-radar emission is detected and fades on its own — Ka band is police-only. Turn it on under Layers → radar / speed traps, or open the radar screen to watch it live. Fed by paired detector hardware; see the parts list on /sensors. Build or buy your own sensors NEW Feed the map from your own gear — planes, drones, police radio, radar, plate readers, dashcams — each with a build route and a buy route. New live layers under Layers, and step‑by‑step setup guides for every one. Flock & ALPR cameras on the map NEW Turn on Layers → Flock / ALPR cameras to see automated plate readers near you (red cones point the way each one faces). Standing at one? Tap it to report it still there or removed. Report a camera from your browser BETA See a Flock or ALPR camera on a pole? Photograph it right in your browser — no app, no hardware. A reviewer checks every one. SparrowMap on Tor 🧅 The map now has a .onion address. Reach it privately in Tor Browser or Brave, harder to block and nobody sees you visit. RF scanner BETA Find surveillance cameras — and help confirm police vehicles by their in-car gear — from a phone, a Raspberry Pi, or a $5 ESP32. No camera needed. Contribute from your own device Feed sightings from a Pi, an SBC or your own code using two simple endpoints. Guides Every how-to in one place — add a camera, IP cameras, the API, the RF beta, and now setting up radar, planes, drones and police radio.

Open source, free, privacy-first. Only government vehicles are ever published.

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Government plates only.