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OTPClient vs pass-otp: catalog facts
OTPClient	pass-otp
Free Free and open source under the GPL-3.0 license.	Free Free and open source.
Linux, Command line	Command line
Multiple encrypted token databases Supports TOTP, HOTP and Steam Guard codes	Keeps OTP secrets in the same store as your pass passwords Copies codes to the clipboard and clears them after 45 seconds
Desktop Linux only, no mobile app Handles one-time codes only, not passwords	Requires pass to be installed and set up Command line only, with no graphical interface
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.