Token Generator

What is a Token Generator?

Generate cryptographically secure random token strings, secret API keys, session tokens, and passwords using the browser Web Crypto API. Customize length, uppercase/lowercase letters, numbers, and special symbols.

Why Use This Tool?

API Keys & OAuth Secrets: Generate high-entropy 32-character or 64-character secret keys for REST APIs and environment variables.
Session & CSRF Tokens: Generate unguessable random tokens for web session IDs and CSRF protection.
Strong Password Creation: Create non-predictable passwords resistant to dictionary attacks.

How to Use

Select Token Length (e.g. `32` characters).
Toggle character options: Uppercase (A-Z), Lowercase (a-z), Numbers (0-9), Symbols (!@#$%^&*).
Click Generate and copy your secure token.

Real Working Example

Input:

Length: 32 | Includes: Uppercase, Lowercase, Numbers, Symbols

Output Result:

Generated Token: k9$mP2#xL8QvW5!nJ4yT7&rB1zC6uA3e

Important Technical Details & Security Standards

crypto.getRandomValues Engine: Powered by native browser Web Crypto CSPRNG for zero predictability.
Entropy Calculation: Computes exact Shannon entropy bits (e.g. 190 bits of entropy for 32 chars).
100% Local Execution: Tokens are generated 100% locally inside browser memory—never logged or sent to servers.

Related Security & Crypto Tools

UUID Generator: Generate 128-bit UUID v4/v7 identifiers.
Diceware Passphrase Generator: Generate memorable high-entropy passphrases.
Password Strength Analyzer: Audit password entropy and crack time.

Frequently Asked Questions

Is this token generator cryptographically secure?

Yes, it uses crypto.getRandomValues() CSPRNG rather than Math.random().

What token length is recommended for API secret keys?

A minimum of 32 characters (256 bits of entropy) is recommended for production API keys.

Are generated tokens stored on a server?

No, all token generation happens 100% locally in your browser memory.

Is it free?

Yes, 100% free with unlimited generation.

What is Shannon entropy in security tokens?

Entropy measures the unpredictability of a token in bits; higher entropy makes brute-force attacks mathematically impossible.

Can I exclude confusing characters like 0, O, 1, l, I?

Yes, toggle "Exclude Ambiguous Characters" to prevent misreading tokens.