BIC / SWIFT validator

Check the structure of a BIC (Business Identifier Code, a.k.a. SWIFT code) and see its parts. This validates ISO 9362 format only. It doesn’t confirm registration with SWIFT. Need it in code? Hit the BIC API.

BIC / SWIFT code

Runs in your browser. This checks ISO 9362 structure only. It does not confirm the institution is registered with SWIFT.

Call it from code

The API validates the same way and returns JSON. Authenticate with ?key= or an Authorization: Bearer header.

curl "https://www.checkfmt.com/api/v1/bic?bic=DEUTDEFF500" \
  -H "Authorization: Bearer YOUR_KEY"

BIC structure

• 4 letters: bank / institution code
• 2 letters: ISO country code
• 2 letters or digits: location code
• 3 letters or digits: optional branch code (omitted = primary office; “XXX” also means primary)

So a BIC is either 8 characters (primary office) or 11 (specific branch).