If you are interested in an easy way to manage a multitude of passwords, we recommend Lastpass for secure, encrypted password storage and login credential sharing.
It is available as a mobile app and as a browser extension. The free level is usually good enough for most users. They have premium, business and family paid versions too.
and some links
chrome extension: https://chrome.google.com/webstore/search/lastpass
iphone app: https://itunes.apple.com/in/app/lastpass-password-manager/id324613447
android app: https://play.google.com/store/apps/details?id=com.lastpass.lpandroid
Only the encrypted files are stored at Lastpass and only you have the master key.