You can use an offline password manager (keepass) that's saved to a file and put that file in Dropbox. There's a keepass-compatible app with a Dropbox/etc integ

You can use an offline password manager (keepass) that's saved to a file and put that file in Dropbox. There's a keepass-compatible app with a Dropbox/etc integrations so your private password store is synced between all your phones.