Authorizer

Authorizer is a password manager for Android that stores account credentials on the phone and can hand them to another machine by emulating a USB keyboard. Instead of copying a password to the clipboard, the phone is connected to a computer over USB and presents itself as an input device, sending the stored characters as if they had been typed on a physical keyboard. This covers cases where clipboard sharing is unavailable or where the target system has no password manager of its own, such as login screens, disk encryption prompts, or terminals.

The application is published by tjado mäcke under the GPL-3.0-only licence. It runs on Android only; there is no desktop counterpart, because the desktop side of the exchange is the machine receiving the keystrokes. USB keyboard emulation depends on the phone's hardware and system support for acting as a USB gadget, so behaviour varies between devices and cabling setups.