Postal code tools
Free tools for zip codes, postal codes and addresses, without registration.
How to address an envelope
Where the addresses and the stamp go, with a template for any country to print on an envelope or label.
How to write an address
Your address in the right order for the country: the lines, the postal code and the capitals.
Postal codes within a radius
All zip codes or postal codes within a distance of a code or place, on a map and in a list to download.
Distance between postal codes
The distance in km and miles between two codes or places, in one country or two, with the direction and a map.
Time zone by postal code
The time zone, the offset from UTC, daylight saving time and the local time of a code or place.
Postal code formats
The format, an example and a regular expression for every country, and a check of any code.
Countries without postal codes
The list by continent, with what to write in the postal code field of a form.