Keychain (software)

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Keychain

Developer(s)	Apple Inc.
Initial release	1999
Operating system	Mac OS 9, macOS (versions 10–14)
Successor	Passwords
Type	system utility
License	APSL-2.0
Website	Keychain Services

Keychain Access

Screenshot of Keychain Access on macOS 12.
Developer(s)	Apple Inc.
Stable release	11.0 (55314) / 2022
Operating system	Mac OS 9, macOS (versions 10–14)
Successor	Passwords
Type	password manager
Website	Keychain Access Help

Keychain is a password management system developed by Apple for macOS. It was introduced with Mac OS 8.6, and was included in all subsequent versions of the operating system, as well as in iOS. A keychain can contain various types of data: passwords (for websites, FTP servers, SSH accounts, network shares, wireless networks, groupware applications, encrypted disk images), private keys, certificates, and secure notes. Some data, primarily passwords, in the Keychain are visible and editable using a user-friendly interface in Passwords, a built in app in macOS Sequoia and iOS 18 and available in System Settings/Settings in earlier versions of Apple's operating systems.