Token generator
Generate random tokens with customizable length and character sets
Token Generator
Token updates automatically when you change options
TL;DR
What is Token generator?
A random token is a cryptographically random string of characters used as a secret, identifier, or credential. Common uses include API keys, session tokens, password reset links, and CSRF protection values. The security of a token depends on its length and the randomness of the source.
Common use cases
- ‣API keys: generate a secret key to authenticate clients to your service
- ‣Session tokens: produce unpredictable session identifiers that cannot be guessed by an attacker
- ‣Password reset links: create one-time tokens for secure account recovery flows
- ‣CSRF tokens: embed a unique value in forms to prevent cross-site request forgery
Frequently asked questions
How long should a token be?
For most security purposes, 128 bits (16 bytes, displayed as 32 hex characters) is the minimum. 256 bits (64 hex characters) is a common choice for long-lived secrets like API keys. Shorter tokens increase the risk of brute-force guessing.
What character sets should I use?
Hexadecimal (0-9, a-f) is safe for any context including URLs and HTTP headers. Alphanumeric (0-9, a-z, A-Z) is more compact for the same entropy. Avoid special characters if the token will appear in URLs or be copy-pasted by users.
Is this tool safe to use for production secrets?
This tool uses the browser's Web Crypto API (crypto.getRandomValues), which provides cryptographically secure random values. All generation happens in your browser; nothing is sent to a server. For production secrets, treat generated tokens like passwords: do not share them in logs, URLs, or source code.
See also
- ‣Bcrypt: if storing tokens server-side, hash them with bcrypt so a database breach does not expose raw token values
- ‣UUIDs generator: UUIDs are a structured alternative when a standard identifier format is required instead of a raw random string
- ‣Password strength analyser: analyse the entropy and guessability of a passphrase before deciding whether a random token is the better choice