Counterwallet Passphrase Address/Key Generator Tool


I've just released a tool to allow you to check/retrieve/generate your counterwallet bitcoin addresses/keys using your counterwallet 12 word passphrase. The script runs client side only (in your browser using javascript). No keys, passphrases are transmitted server side. For additional security the script can also be run while in offline/disconnected mode

The tool can be accessed at Because it is built purely with javascript and html, all of the code is viewable online.


The source code is now available from

Awesome @mtbitcoin! This is really useful +1 :wink:

Can these be made to show up in counterwallet without manually creating address in wallet again?