Idiot Security Tools was built around a simple idea: everyday password and security tasks — generating a strong password, checking a hash, validating a card number, encrypting a note — shouldn't require installing software, creating an account, or trusting a mystery server with your sensitive input.
Every tool on this site runs entirely as JavaScript inside your own browser. There is no backend processing your passwords, your text, or your files. When a tool needs live data — like checking a password against a public breach database — it says so explicitly, and it always uses privacy-preserving techniques (like k-anonymity) rather than sending your actual sensitive input anywhere.
We focus on a single category — security and password tools — and try to do each one properly rather than spreading across unrelated categories. Every tool includes honest, plain-language documentation about what it actually does, what it can't do, and how to use the result responsibly.
Developers testing form validation, everyday users who want a stronger password or a quick hash check, students learning how cryptographic building blocks work, and anyone who'd rather not paste sensitive text into an unknown website's server-side form.
Idiot Security Tools