Fully client-side version of Token2 TOTP Toolset (Token2 TOTP Toolset - local), which can be run locally without accessing any libraries/resources on the Internet (including the QR image generation).

Features

convert hex seed to base32 format
generate QR image based on hex or base32 seed key values
generate random seed values (i.e. for Token2 programmable tokens)
verify the time drift with customizable skew value
create CSV for Azure MFA import

Demo

https://www.token2.com/site/page/totp-toolset

Note! This demo is slightly different but functionality is exactly the same

Following libraries were used

jQuery 3.7.1 | (c) JS Foundation and other contributors | jquery.org/license

jQuery-qrcode v0.14.0 - https://larsjung.de/jquery-qrcode/

jsSHA (c) Brian Turek 2008-2017 http://caligatio.github.com/jsSHA/