UK Postal Formatter

UK Postcode Formatter

Format UK postcodes instantly in your browser. Enter mixed-case or unspaced values and get the standard spaced format with a quick validity check.

Live formatting No upload needed

Input

Tip: paste multiple postcodes, one per line.

Output

Paste a value or load the sample.

How this formatter works

Type or paste one value per line and the page normalizes each postcode locally in your browser. The tool uppercases the text, inserts the standard space, and checks the postcode layout.

Example: sw1a1aa becomes SW1A 1AA.

sw1a1aa -> SW1A 1AA ec1a1bb -> EC1A 1BB

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Open another regional formatter if you need a different postal style.

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