1Password Nightly is a password manager extension for the Chrome browser. It offers a convenient way to sign in to websites, generate secure passwords, and store sensitive information. This extension is specifically designed for users who enjoy testing cutting-edge features and improvements, as it is frequently updated with less-tested functionalities. It is intended to be used alongside the nightly channel of the 1Password desktop app.

To use 1Password Nightly, you need a 1Password membership. If you don't have one, you can sign up for a membership when you install the extension and try it for free.

In terms of privacy, 1Password prioritizes the security of your data. All the data saved in the app is encrypted and inaccessible to the developers. They have a strict privacy policy that ensures your data remains yours and is not used, shared, or sold to third parties. Your privacy is valued, and the developers emphasize that you are their customer, not their product.