What are some alternatives?
When comparing Padloc and Buttercup, you can also consider the following products
1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.
Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.
Padlock - Padlock is an open-source password manager that is available as an app for multiple platforms. It can be used on Android and iOS devices, and it can also be installed as a Chrome extension.
Dashlane - Dashlane is a secure way to bypass tedious logins, forms, and purchases online. Save all of your information and save time in your online transactions.
bitwarden - Bitwarden is a free and open source password management solution for individuals, teams, and business organizations.
KeePass - KeePass is an open source password manager. Passwords can be stored in highly-encrypted databases, which can be unlocked with one master password or key file.