TOTP / 2FA generator

Generate two-factor codes from a secret.

Standard TOTP (RFC 6238) — the same 6-digit codes as your authenticator app. Computed in your browser; the secret never leaves your device.

How it works

Three simple steps — all in your browser.

TOTP / 2FA generator runs entirely on your device — no upload, no account, and nothing to install.

Generate two-factor codes from a secret. Everything happens instantly as you go.

Download or copy the output straight away. Your data never leaves your device.

TOTP / 2FA generator works locally in your browser — your files and text are never sent to a server.

No sign-up, no trial, and no usage limits. Open the tool and start straight away.

Runs in any modern browser on desktop, tablet or phone — nothing to download.

Is TOTP / 2FA generator free to use?

Yes — every tool here is completely free, with no account, sign-up, or usage limits.

Is anything uploaded to a server?

No. TOTP / 2FA generator runs entirely in your browser, so your data never leaves your device.

Do I need to install anything?

No. It works in any modern browser on desktop or mobile — there is nothing to download or install.

Does it work offline?

Once the page has loaded, the processing happens locally, so it keeps working even on a flaky connection.