Local TATP Generator

Local TATP Generator is a secure, offline tool for generating Time-Based Any-Time Passwords (TOTPs with any time seed). With customizable settings for digit length, algorithm, and period, you can generate codes to meet your exact needs—without relying on any external server.

Time Source Using device time

Offset start

Offset end

Secret

▶ Show Advanced Settings

Valid for --s

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This TOTP generator works fully offline using the Web Crypto API. It automatically updates the TOTP and URL whenever fields change or paste events occur.