One-Time Secret - One-Time Secret is a way to share sensitive information simple and secure.
1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.
Password.link - Securely send and receive secrets using a one-time link. The secret is encrypted and decrypted in the browser using an encryption key only known by the user. Has features like notifications, teams, API. Trusted by IT teams all around the world.
Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.
1ty.me - If you need to send a password or some other form of simple but sensitive information to someone...
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.