TOTP Code Generator
Generate time-based one-time passwords for two-factor login without an authenticator app — paste your account's secret key, match its settings, and use the code before the timer ends. Nothing is uploaded; codes are computed on this page.
Current code
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Enter your secret key below.
| Algorithm | Time | Expected | Got | Result |
|---|
How to use
- Copy the secret key from your account security settings (it is usually shown as a base32 code next to the QR code).
- Paste it above and match the algorithm, digits and period shown by your service (almost always SHA-1, 6 digits, 30 seconds).
- Use the current code before the timer runs out — it refreshes automatically.
Note: Your secret never leaves this page — codes are computed locally in your browser and are cleared when you close the tab. TOTP depends on your device clock being correct; if codes are rejected, enable automatic date and time on your device. SHA-512 is not offered; SHA-1 is the standard used by Google Authenticator and most apps. The self-test button checks the generator against the official RFC 6238 test vectors.
Good to know
- Most services use SHA-1, 6 digits, 30 seconds — change these only if your service says so.
- Use the code quickly; it changes when the timer ends.
- Your secret key never leaves this page, but keep a backup copy somewhere safe in case you lose this tab.