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信用卡验证器

使用卢恩算法验证信用卡号码. 识别卡型(Visa, Mastercard, Amex, Discover)并检查号码是否有效.

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How to use Credit Card Validator

  1. 输入信用卡号码(有或没有空格).
  2. 点击验证.
  3. 看看号码是否通过卢恩支票.
  4. 查看识别的卡片类型.

{姓名}是什么来着?

这个工具使用Luhn算法(也叫"mod 10"算法)验证信用卡号码,这是用来验证卡号码的标准校验和公式. 它还根据数字前缀识别出卡片类型.

这只是为了教育和验证目的——它不核实一张卡是否真实、活跃或有资金。 没有数据发送到任何服务器.

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FAQ

卢恩算法是什么?
Luhn算法是一种简单的校验和公式,用于验证信用卡等身份号码. 它会像打错数字一样碰到意外错误.
这能证明卡片是真的吗?
否- 仅在数字格式使用Luhn算法有效时进行此检查. 它无法核实卡是否存在、是否活跃或是否有资金.

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Author

OH
Omar Hassan"The Number Cruncher"

Engineer & Unit Conversion Specialist

Omar is a mechanical engineer by training and a unit-conversion enthusiast by passion. He has built calibration systems for aerospace and automotive manufacturers and knows firsthand how a single decimal error can cost millions in rework. His mission is to make every conversion instant, accurate, and accessible to everyone, whether they are a student, tradesperson, or practicing engineer, with no advanced degree required.

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