BIN / IIN Checker (Offline)
Break down the first 6–8 digits of a card: network, industry (MII), lengths and IIN size.
Tool inputs stay in your browser · optional AI search sends your query
Good to know: Offline and private: shows network and structure only. It does not look up the issuing bank (that needs a paid BIN database) and never sends your digits anywhere.
How to use it (step by step)
- 1Fill in the boxes: “BIN / IIN (first 6–8 digits)”. Example numbers are already there so you can see how it works; replace them with yours.
- 2The result updates instantly as you type (on a phone it is below the boxes).
- 3The bold line is the main answer. Tap Copy next to any value to copy it.
Words to know
- BIN / IIN
- The first 6–8 digits of a card. They tell which network (Visa, Mastercard…) and which bank issued it, like an area code on a phone number.
- Public vs private IP
- Your router gives each device a private IP (like 192.168.1.5) at home. The internet only sees one public IP for your whole house.
- Struct / class / schema
- A description of the shape of data: which fields it has and what type each one is (text, number, list…).
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