All tools · Utilities

Card Validator

Luhn check and card type for an account number.

Free to use, no sign-up required. Card Validator is one of 198 tools built into Xenition, alongside a chat that can use them for you.

Use it from chat

You do not have to open Card Validator to use it. Ask Xenition in plain language and it runs the right tool, then carries the answer into whatever you are working on — a document, a spreadsheet, a deck.

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• JSON Formatter — Validate, beautify, or minify JSON.
• Luhn Validator — Validate card-style numbers with the Luhn checksum.
• Age Calculator — Exact age and days until your next birthday.
• API Key Generator — Batches of random secret keys — pick bit strength, character set, and prefix.
• Area of Shapes — Area of rectangles, triangles, circles, and more.
• Average (Mean) — Mean, median, and mode of a list of numbers.