Security, Hash & Crypto

Secure Random Token Generator

The Secure Random Token Generator produces high-entropy random strings for API keys, session secrets, CSRF tokens, password-reset links and salts. Pick the length, character set (hex, Base64 URL, alphanumeric, letters or numbers) and how many to generate — all using the Web Crypto API.

What is a secure token?

A secure token is a long, unpredictable random string used wherever software needs a secret that cannot be guessed — API keys, session identifiers, password-reset links, CSRF tokens and cryptographic salts. The security of these systems depends on the randomness being genuinely unpredictable.

This generator uses crypto.getRandomValues, the browser's cryptographically secure source of randomness, with unbiased sampling across your chosen character set.

Formats and options

  • Hexadecimal — compact and universally safe
  • Base64 URL — high density, safe in URLs and filenames
  • Alphanumeric, letters-only or numbers-only character sets
  • Adjustable length from 8 to 128 characters
  • Generate 1, 3, 5 or 10 tokens at once

Local and secure

Tokens are generated entirely in your browser and never transmitted, so they are safe to use as real secrets. Generate fresh tokens whenever you need them.

Related searches

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