Importantly, the app can even cope with sites that employ two-factor authentication to login or change a password, prompting you for the code when required … 

In a WSJ review, Geoffrey Fowler found that Dashlane allowed him to change 34 passwords in less than five minutes.

As with other password managers, the idea is that you never need to remember, or even know, your site passwords – only the master password that allows you to login automatically. By using the app across all your devices, that single password is the only one you’ll ever need.

The automated change feature could make Dashlane formidable competition for more established password managers like 1Password and LastPass, especially if the company makes good on its promise to increase the number of supported sites to first hundreds and then thousands.

There’s of course no such thing as a free lunch – the automatic password change service requires a premium subscription to Dashlane, costing $39.99 a year. It’s currently in invitation-only beta, but you can apply here.