1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.
OpenSSL - OpenSSL is a free and open source software cryptography library that implements both the Secure Sockets Layer (SSL) and the Transport Layer Security (TLS) protocols, which are primarily used to provide secure communications between web browsers and …
MasterPassword.app - Secure your life, forget your passwords
Let's Encrypt - Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).
MacPass - A free, open-source, KeePass-compatible password manager for macOS.
Authy - Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.