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PrismKit

Luhn Validator

Local

Check a card, IMEI or account number against the Luhn mod-10 rule, see the doubling steps and work out a missing check digit.

SAML Decoder

Decode a SAMLRequest or SAMLResponse from base64, DEFLATE or a redirect URL into readable XML, key fields, attributes and the signing certificate.

Credit Card Validator

Check a card number's brand, length and Luhn checksum and format it the way it is printed.