
OnlyKey
OnlyKey is an open source alternative to YubiKey
OnlyKey launched on December 25, 2019 with 118 votes, #199 of 2,946 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 6 years on.
What it does
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.
The only device that works everywhere to secure accounts, email, and communication online. Strong two-factor authentication and professional grade encryption. Use it to log into any device, application, or unlock encrypted drives.
Does a similar job
all alternatives →
A virtual Yubikey device for 2FA/WebAuthN2022 · github.com · ▲166A Virtual FIDO2 USB Device. Contribute to bulwarkid/virtual-fido development by creating an account on GitHub.


GPG on macOS and YubiKey2019 · github.com · ▲150## Auto-archived due to inactivity. ## YubiKey at Datadog - DataDog/yubikey
Yubikey-agent – an easy to use Go ssh-agent for YubiKeys2020 · github.com · ▲152yubikey-agent is a seamless ssh-agent for YubiKeys. - FiloSottile/yubikey-agent
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