LEI Validator
Paste an LEI to check whether its check digits are correct.
Computed locally in your browser with the standard ISO 7064 MOD-97-10 check-digit scheme. This checks structure and check digits only — it does not query GLEIF or confirm the LEI belongs to a real, registered entity. Your LEI stays only on this page.
Validate an LEI check digit
Paste a 20-character LEI (an 18-character alphanumeric body plus two check digits) to confirm its check digits and read off the corrected value when they are wrong. The check digits use the ISO 7064 MOD-97-10 scheme — identical to IBAN — mapping each letter to two digits (A=10 through Z=35) across the body, then subtracting the remainder mod 97 from 98. Surrounding whitespace is ignored. Need to create valid fixtures instead? Try the LEI generator.