All Tools

OTP

A small, private software authenticator. Enter a Base32 secret seed and this app generates the same time-based code as a standard authenticator app. The seed stays in this page's memory and never leaves your browser.

tool-details

FunctionTime-based one-time codes

MethodTOTP (RFC 6238)

DataSeed remains in memory

Output6- or 8-digit rotating code

Click to use tool in isolation mode Enable isolation

isolated-sandbox runs in your browser · nothing sent or stored

Base32 secret seed

Spaces and hyphens are ignored. The seed is not saved.

Digits Period Algorithm

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Enter a seed to begin