Generate Luhn-valid numbers online
Validate Luhn checksum online
Validate MOD-97 checksum online
Generate and verify European IBAN code
Translate between text characters and their ASCII numeric codes
Encrypt and decrypt messages using the most commonly used encryption algorithms
Convert CSV to JSON, JSON to CSV, and pretty-print XML in your browser
Generate randomly, calculate or validate an Italian tax code for testing purposes
Pretty-print or minify JSON in the browser with instant syntax validation
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