OTP Generator

OTP (One-Time-Password) Generator generates passcodes for use with services like 2-step authentication. OTP Generator is very much like a desktop version of Google Authenticator¹. OTP Generator is a standalone application and does not require an internet connection to use.

OTP Generator follows the OTP standardisation of RFC 4226 and RFC 6238.

OTP Gen Download OTP Generator 1.04 (exe, jar?

Click here to view version history

This program requires Java 1.8+.
To download the latest version of Java click here.

Please submit any suggestions here or submit a bug report here.

¹ Disclaimer: I am not the creator of Google Authenticator nor affiliated with Google in any way.

How to use:

Enter an 80-bit secret key (in 2-step authentication this key is provided by whatever service you are using) and press generate to start generating new passcodes every 30 seconds. You can then use the passcode with whatever service you are using.

OTP Generator allows you to save secret keys as presets¹ so that you don't have to re-enter them each time. Passcodes can be right clicked and copied to the clipboard.

¹ Disclaimer: Saved presets are NOT encrypted on the disk. Keep this in mind as I am not responsible for stolen information.