Offline TOTP Generator

Generate 6-digit (or custom) one-time passwords from your manual setup key. Works with Base32 secrets and otpauth:// URIs.

Secret or otpauth:// URI

Tip: The “secret” is the Base32 key shown when you choose “enter a setup key instead of scanning a QR”.

Hash

Digits

Time Step (seconds)

Time Offset (seconds)

Custom Unix Time (seconds)

You can generate codes for adjacent windows below to account for small clock drift.

Status

Current Code

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Time Step

30s

Remaining

—

Counter

—

Algorithm

SHA-1

Adjacent Windows

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Security: Keep this file and your secret offline. Anyone with the secret can generate your codes.