🔐 Secure Random Token Generator
Generate cryptographically secure tokens using crypto.getRandomValues(). Custom length, charset, and batch mode.
About Secure Random Token Generator
This tool uses the Web Crypto API's crypto.getRandomValues() to generate cryptographically secure random tokens. This is suitable for API keys, session tokens, password reset codes, and similar security-sensitive use cases.
FAQ
How secure is this?
It uses the browser's CSPRNG (cryptographically secure pseudo-random number generator), the same source used for TLS and other security functions.
What are ambiguous characters?
Characters like 0/O, 1/l/I, o/0 that look similar in many fonts. Removing them prevents confusion when reading or typing tokens.
What's the entropy calculation?
Entropy = length × log₂(charset size). Higher entropy means harder to guess via brute force.