2FA TOTP Generator
Enter a Base32 shared secret to see the current 6-digit TOTP and countdown. Intended for staging/test secrets — do not paste production MFA seeds into untrusted machines.
Runs entirely in your browser. Your data never leaves this device.
- RFC 6238 TOTP
- 30s step countdown
- Base32 secret
- Local HMAC-SHA1
- Test-only warning
How it works
- Adjust the controls or paste your input.
- Preview results instantly in the browser.
- Copy or download the output — nothing is uploaded.
Key features
- RFC 6238 TOTP
- 30s step countdown
- Base32 secret
- Local HMAC-SHA1
- Test-only warning
FAQ
Is this private?
Yes — processing runs in your browser; we do not upload your inputs.
Do I need an account?
No — free to use without signup.
Does it work offline?
After the page loads, most tools work without further network calls.
Mobile friendly?
Yes — layouts adapt to smaller screens.
Should I paste my real authenticator secret?
Prefer test secrets. Anyone with the secret can generate codes — treat production MFA seeds carefully.
Keep building
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