Tools that run in your browser

Small, single-purpose tools for questions about where you are. Nothing you enter is sent to a server.

Where am I?

Read from your device, answered on your device.

• What ZIP code am I in? — US Census ZIP areas, matched in your browser
• What country am I in? — from your timezone — no location permission needed

Radius maps

A true circle on the ground, not a circle drawn on a screen. Set any centre and any radius, or start from one of these.

• Radius map — any radius, in miles, kilometres, feet or nautical miles
• 1 mile radius map
• 2 mile radius map
• 3 mile radius map
• 5 mile radius map
• 8 mile radius map
• 10 mile radius map
• 12 mile radius map
• 20 mile radius map
• 25 mile radius map
• 30 mile radius map
• 35 mile radius map
• 40 mile radius map
• 50 mile radius map
• 60 mile radius map
• 100 mile radius map
• 150 mile radius map
• 200 mile radius map
• 300 mile radius map

Why these run in your browser

Each of these tools needs something about you — your position, or your device's settings — to answer at all. The usual way to build them is to send that to a server and send an answer back, which means the answer is also a record.

These do it the other way round: the reference data comes to you, and the comparison happens on your machine. The US Census ZIP table, the IANA country table, the geometry — all of it is downloaded and used locally. Your position is never part of a request, so there is nothing to log and nothing to promise.