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TOTP Authenticator

Generate an RFC 6238 compatible TOTP code.

Input

Up to 200 KB

Result

Your result will appear here.

 Processed on your device · Content is not stored.


Instructions & limits
How to use
Generate an RFC 6238 compatible TOTP code.
  1. Enter your content, or select Use example.
  2. Adjust the available options.
  3. Select Run tool, review the result and copy or download it.
When to use this tool
Generate an RFC 6238 compatible TOTP code.
Example input
GEZDGNBVGY3TQOJQGEZDGNBVGY3TQOJQ
Limits
SHA-1, six digits, 30-second periods. Device time must be accurate. Secrets are not saved. Generate a new code after expiry.
Frequently asked questions
What does this tool do?
Generate an RFC 6238 compatible TOTP code.
What are the limits?
SHA-1, six digits, 30-second periods. Device time must be accurate. Secrets are not saved. Generate a new code after expiry.
Is my data sent to a server?
No. This tool runs in your browser. We do not receive your input or result.
Do I need an account?
No. Use the tools for free without signing in. Favorites and recent tools are stored only in your browser.
Does this work on mobile?
Yes, in a modern browser with Web Crypto support. 
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