Practical security tools for passwords and payment card checks.
Security tools are small utilities that reduce the everyday risks of working on the web — generating a strong unique password, checking whether a card number is valid before submitting a form, and looking up what issuer sits behind a card. All computations happen in your browser.
The password generator builds random passwords of any length with configurable character classes — upper, lower, numbers, symbols — and includes a strength indicator. The credit card validator runs the Luhn algorithm to confirm whether a card number is well-formed (it does not verify whether the card has funds or is active). The BIN checker identifies the issuing bank and card network from the first six digits of a card number, which is useful for merchants doing fraud checks or anyone curious about which institution issued a card.
The password generator runs entirely in your browser using the Web Crypto API where available. The generated string is never sent over the network — it lives only in your active tab. As soon as you copy it into your password manager and close the tab, it is gone from our side of the system. There is no account, no logging, and no analytics tied to the values produced.