ToolToUse

Security & Password

TOTP Authenticator Code Generator

Generate the current 2FA code from a TOTP secret or otpauth link.

For testing and recovery. Typing real 2FA secrets into any website is risky — prefer a dedicated authenticator app.

Security & Password

TOTP Authenticator Code Generator

Local only
Everything stays in your browser

Your text is processed on your device — nothing is uploaded to a server.

How it works

Implements RFC 6238 with @noble/hashes. Settings in an otpauth link override the options. Runs in your browser; nothing is uploaded. For testing and recovery. Typing real 2FA secrets into any website is risky — prefer a dedicated authenticator app.

Good to know

Frequently asked questions

How do I use it?

Enter your secret (base32) or otpauth:// uri, adjust the options and press “Get code”. Check the result, then copy or download it.

How does it work?

Implements RFC 6238 with @noble/hashes. Settings in an otpauth link override the options. Runs in your browser; nothing is uploaded.

Are there limitations?

For testing and recovery. Typing real 2FA secrets into any website is risky — prefer a dedicated authenticator app.

Is my data uploaded?

No. Everything is processed in your browser and nothing is sent to a server. No account is needed.

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