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Regex for UK Postcode
Pattern: /\b[A-Z]{1,2}\d[A-Z\d]? ?\d[A-Z]{2}\b/gi. Test it below and adapt it to your data — validation regexes are always a trade-off between strictness and real-world inputs.
Regex for UK Postcode
Matches/\b[A-Z]{1,2}\d[A-Z\d]? ?\d[A-Z]{2}\b/gi
Offices at SW1A 1AA and M1 1AE.
| # | Match | Index | Groups |
|---|---|---|---|
| 1 | SW1A 1AA | 11 | — |
| 2 | M1 1AE | 24 | — |
JavaScript (ECMAScript) regular expressions. Without the g flag only the first match is used by String.match — this tester always lists all matches.
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