About TOTP / 2FA Generator
Generate TOTP (time-based one-time password) codes online for testing authenticator flows. Keep shared secrets local while you verify enrollment and clock skew issues. This is a developer helper — use a real authenticator app for production account security when appropriate.
What stays local: TOTP shared secrets and generated codes.
What you can do with TOTP / 2FA Generator
- TOTP codes from a shared secret
- Local generation only
- Useful for 2FA/auth debugging
- No server-side secret storage
How to use TOTP / 2FA Generator
- Enter the shared secret. Paste the TOTP secret (stays in this browser).
- Generate codes. View the current time-based OTP.
- Verify in your app. Confirm the code matches your authenticator or auth API.
Privacy
What stays local: TOTP shared secrets and generated codes. DevTooKit is local-first — no signup wall, no server-side processing for this tool, and no watermark on results.
Related tools
FAQ — TOTP / 2FA Generator
Privacy, offline use, and how this free online tool works.
Are TOTP secrets uploaded?
No. Codes are derived locally in your browser.
Should I use this for production account 2FA?
Prefer a dedicated authenticator app for long-term account security. This tool is ideal for development and debugging.