Why does the formatter need a country?
Postal code structures differ by country. A country selection helps the tool apply the correct length, spacing, allowed characters, and letter casing.
Formatter
Postal Code Formatter
Format postal codes using country-specific spacing, letter casing, and structure. Process postal codes locally in your browser.
Tool
Postal Code Formatter
Format postal codes using country-specific spacing, letter casing, and structure. Process postal codes locally in your browser.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this free Postal Code Formatter to clean and standardize ZIP codes and postal codes. Enter a code, select the relevant country where necessary, and normalize spaces, hyphens, and letter casing according to the supported national format. Processing runs directly in your browser, so address data does not need to be uploaded to a server.
Examples
- 83022
- SW1A 1AA
- K1A 0B1
Frequently Asked Questions
Can the tool format both ZIP codes and postal codes?
Yes. ZIP code is the term commonly used in the United States, while many other countries use the term postal code.
Does valid formatting prove that the postal code exists?
No. The formatter can check whether a code matches a supported structure, but it does not confirm that the code is currently assigned to a real location.
Is my postal code uploaded?
No. Postal code formatting runs locally in your browser.
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