Opaque Token Generator
Generate secure random tokens (opaque identifiers) entirely in your browser.
How to Use
Set Your Preferences
Choose the desired length for your token (up to 256 characters) and select an alphabet like URL-safe or Hex.
Generate Token
Click the 'Generate' button to create a new, cryptographically secure random string based on your settings.
Copy to Clipboard
Use the copy button to save the generated opaque token for use in your session management or API keys.
Frequently Asked Questions
What is an Opaque Token?
An opaque token is a random string that has no inherent meaning. Unlike JWTs, they don't contain user data; instead, they serve as a unique key to look up information in a server-side database.
How secure are these tokens?
We use the `crypto.getRandomValues` API, which is a cryptographically strong pseudo-random number generator (CSPRNG) available in modern browsers, ensuring high unpredictability.
Which alphabet should I choose?
'URL-safe' is the standard choice for most web applications as it avoids characters that need special encoding in URLs. Use 'Hex' if you need compatibility with systems that only support hexadecimal.