OnlyKey is a USB security key that works virtually everywhere. Like a swiss army knife of authentication, OnlyKey natively supports: a hardware password manager, multiple two-factor methods (FIDO2, TOTP, and Yubico® OTP), passwordless SSH login, and OpenPGP.
Open source Yubikey alternative with dual USB-C and USB-A
OnlyKey DUO is a USB security key that works virtually everywhere, supporting both USB-A and USB-C. Say goodbye to remembering passwords! Like a security swiss army knife, use as a password manager, MFA (FIDO2, TOTP, and Yubico® OTP), SSH, OpenPGP, and more.
Using my OnlyKey-Duo for half a year now , I am enthousiastic about it.
Functioning reliable on my USB A/C devices.
Easy configuration and backup , but lacks support if you have issues. (just forum)
After using Yubikey 5-NFC , OnlyKey-Duo is matching better for me.
OnlyKey