Quick TOTP is a fast and lightweight GNOME Shell extension for generating One-Time Passwords (OTP), with support for both TOTP and HOTP. Access your two-factor authentication (2FA) codes directly from the top panel for services like Google, GitHub, Discord, Amazon, Steam, Facebook, Microsoft, and thousands of other OTP-compatible websites and applications. The panel menu offers a scrollable list, instant search/filter, a show/hide toggle for codes, a live countdown for each entry, and full keyboard navigation. NOTE: This extension uses the clipboard: - clicking on an OTP entry in the indicator will copy the generated code to the clipboard; - the preferences window will copy a generated code to the clipboard when clicked on the corresponding button; - the preferences window will copy the OTP secret to the clipboard when selecting the "Copy to clipboard" menu option; - after copying an OTP secret into the clipboard the clipboard will be cleared after a configurable amount of time (default is 30 seconds); - when creating or editing an OTP secret, the paste button (on the top right) will paste the OTP secret (as text or QR image) from the clipboard.

Extension Homepage

https://github.com/brunos3d/gnome-shell-extension-quick-totp