LassPass (Free with lite)- Online Service keeps your password in cloud.
1password (Paid App)- Nice for Mac/iOS, also work on Windows, not have version on linux.
Keepass - Open source and cross platform.
LassPass keeps your password in cloud. 1password keeps in your local machine that your can backup it on dropbox or personal account of cloud storage.
LastPass offers the convenience but KeePass have better security.
Install on OSX via Homebrew
$ brew install kpcli