Security & Crypto
TOTP / 2FA Codes
Live one-time codes from a Base32 secret, plus otpauth:// URIs for testing 2FA flows.
Loading the TOTP / 2FA Codes…
About the TOTP / 2FA Codes
Generate the same one-time codes as Google Authenticator, Authy and 1Password from a Base32 secret, to test two-factor login flows. Choose the digits, period and algorithm, see the previous and next codes, and build an otpauth:// URI for enrolling an authenticator app.
How to use it
- Paste the Base32 secret, or generate one.
- Match the digits, period and algorithm of your system.
- Use the current code; it refreshes automatically.
Frequently asked questions
- Why don’t my codes match the app’s?
- Check that the clock is correct and that digits, period and algorithm match. Most services use 6 digits, 30 seconds and SHA-1.
- Should I paste my real 2FA secret here?
- The secret stays in your browser, but treat it like a password. This tool is meant for testing and development secrets.
- Is my secret uploaded?
- No. Everything runs in your browser tab with JavaScript. Nothing you enter is uploaded, logged or stored, and the page works offline once loaded.