Token Generator
Generate cryptographically secure random tokens, API keys, PINs, and UUIDs in your browser.
Runs entirely in your browser.
Secure Random Token Tool
Number of random bytes used to build each token before encoding.
About Secure Tokens
A token is a random string used to identify, authenticate, or authorize something, for example an API key, a session ID, a password-reset link, or a one-time PIN. For security, tokens must be generated with a cryptographically secure random number generator. This tool uses crypto.getRandomValues() from the Web Crypto API, which is suitable for security-sensitive use, unlike Math.random() which is predictable and must never be used for secrets.
Choose the format that fits your need: Hex and Base64 are common for API keys and secrets, Base64URL is safe to use in URLs and filenames, Alphanumeric avoids special characters, a Numeric PIN is handy for short verification codes, and UUID v4 produces a standard 128-bit random identifier. The longer the token, the harder it is to guess. Everything is generated locally in your browser and nothing is sent to a server.
