If you must use a web app, you can at least use CyberChef, which runs entirely i... | Hacker News

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		pimlottc on July 27, 2024 \| parent \| context \| favorite \| on: TOTP tokens on my wrist with the smartest dumb wat... If you must use a web app, you can at least use CyberChef, which runs entirely in the client and is widely used in security testing. https://gchq.github.io/CyberChef/

gchq-7703 on July 27, 2024 [–]

Example recipe to do it for you:

    https://gchq.github.io/CyberChef/#recipe=To_Upper_case('All')To_Base32('A-Z2-7%3D')

It looks like 'cryptii' also appears to do all processing client-side.

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