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TOTP / 2FA Code

Generate a time-based one-time passcode from a Base32 secret, refreshed every second.

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Base32 secret

digits

period (s)

About this tool

Compute the current TOTP two-factor code from a Base32 secret directly in your browser, with a live seconds-remaining display.

What secret format is expected?

A Base32-encoded secret, the same format authenticator apps show when you set up two-factor authentication.

Why does the code change?

TOTP codes are derived from the current time divided into periods, so a fresh code appears at the end of each period.