Random token generator

Generate cryptographically random bytes and encode them as hexadecimal or unpadded Base64url.

Check input Local analysis

Processed locally in this browser tab.

RESULT PREVIEW

Ready when you are.

Enter the required input and run the check to see a compact report.

How to use Random token generator

Generate cryptographically random bytes and encode them as hexadecimal or unpadded Base64url. The check runs when you submit the form. Its inputs are processed in this browser.

How the check works

The browser draws the requested number of bytes from crypto.getRandomValues. Encoding changes their representation while retaining the same random bytes.

The Overview tab explains the findings. Measured data lets you search individual fields and values, while JSON report shows the complete export. Export JSON to retain a baseline, or print the findings for your own records. Review the report before sharing it: browser characteristics, token claims, and file names can reveal information about your setup.

Read the result in context

Thirty-two random bytes contain 256 bits before encoding. Server-side token storage, expiry and access rules still determine how a token should be used.

Understand the limits

The token is excluded from report exports. This generator does not issue an account credential or register a token with a server.

Common questions

Where is the input processed?

In this browser tab. This tool does not submit its input to the site server or a third-party service.

What should I keep with a result?

Record the selected options, browser and time. Review exported values before sharing them. Generated passwords, tokens and HMAC secret keys are excluded from report exports.

Sources and further reading

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