32-byte hex token
byteLength = 32format = hex
Result: A 64-character hex string (256 bits of entropy).
Secure Random Token Generator
Generate secure random tokens using the browser's CSPRNG (crypto.getRandomValues). Choose from hex, Base64, Base64URL, or alphanumeric formats. Tokens are generated locally and never leave your browser.
Privacy: this tool processes all data entirely in your browser. Passwords and hashes are never sent to the server.
Enter your values and press Calculate — the result appears here.
Worked examples
Frequently asked questions
What is a CSPRNG?
CSPRNG stands for Cryptographically Secure Pseudo-Random Number Generator. It generates random values that are unpredictable and suitable for security applications. The browser's crypto.getRandomValues() uses the OS-level CSPRNG.
When should I use Base64URL vs hex?
Use Base64URL for URL-safe tokens (e.g., OAuth state parameters). Use hex for API keys and general-purpose tokens. Use alphanumeric for human-readable tokens.
Is my token stored anywhere?
No. The token exists only in your browser's memory. It is never stored, logged, or transmitted. Copy it immediately - refreshing the page generates a new token.
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