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TOTP Code Generator (2FA Authenticator Codes)

Generate time-based one-time passwords (TOTP) from a Base32 secret – like Google Authenticator – for testing 2FA in your own apps, with countdown, 6/8 digits and SHA-1/256 options.

Security Tools Free Private
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What is the TOTP Code Generator?

Developers building two-factor authentication need to check that their server accepts the right codes. Paste a Base32 secret (or an otpauth:// URI) and see the current 6-digit code with a live countdown, plus the previous and next codes. Everything is computed in your browser with the Web Crypto API following RFC 6238.

How to use the TOTP Code Generator

  1. Paste the Base32 secret or otpauth:// link.
  2. Adjust digits, period and algorithm if your app uses non-default values.
  3. Compare the code with your server or authenticator app.

Security warning

Never paste secrets for your real personal accounts into any website. Use this for testing your own apps, or use a trusted authenticator app on your phone.

This TOTP Code Generator is 100% free, needs no signup and runs privately in your browser – on phone, tablet or computer.

Last updated: · By NodifyTech

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