Dev tools · alternatives · 2026
24 alternatives to OnlyKey DUO
Open source Yubikey alternative with dual USB-C and USB-A
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. OnlyKey DUO launched in 2021; newer entries below may have overtaken it.
- 1

- 2
YubiKey 5Ci▲129Security key with dual support for USB-C and Lightning
2019 · yubico.com · its alternatives →
- 3

A Virtual FIDO2 USB Device. Contribute to bulwarkid/virtual-fido development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 4

- 5

## Auto-archived due to inactivity. ## YubiKey at Datadog - DataDog/yubikey
2019 · github.com · its alternatives →
- 6

- 7

- 8

Solo 1 firmware in C. Contribute to solokeys/solo1 development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 9KS
Hi HN! I built KeyPub.sh to solve the problem of user verification for CLI applications. It's essentially OAuth for the terminal, but using SSH keys that developers and users already have. - No installation needed - works with existing SSH setup - Privacy-focused: users control what email info is shared - Simple email verification process - Free public service - Perfect for CLI app developers who don't want to build user verification Try it with: `$ ssh keypub.sh about` Source code: https://github.com/skariel/keypub
2024 · keypub.sh · its alternatives →
- 10

Hey y'all, This is something I've been working on for a few months. It is a passkey system, similar to Apple Passkeys or a Yubikey, but it is entirely software based so you can sync credentials between devices. Passkeys (and FIDO devices in general) allow you to use public keys instead of passwords or codes to authenticate. For instance, you can just click "Approve" on the device/software instead of having to copy a code, and there are no passwords to phish. This is a new piece of tech, so website support for logins are still limited, but it can currently be used for 2FA anywhere a…
2022 · bulwark.id · its alternatives →
- 11

- 12

yubikey-agent is a seamless ssh-agent for YubiKeys. - FiloSottile/yubikey-agent
2020 · github.com · its alternatives →
- 13

Solo 1 firmware in C. Contribute to solokeys/solo1 development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 14

A tiny FIDO2 security key for 2FA and passwordless login.
2015 · crowdsupply.com · its alternatives →
- 15

Use Touch ID / Secure Enclave for SSH Authentication! - sekey/sekey
2017 · github.com · its alternatives →
- 16
Solo▲12The first open source FIDO2 security key. USB & NFC
2018 · kickstarter.com · its alternatives →
- 17

A YubiKey, among other use cases, can be used to store OTP credentials and generate one-time passwords. If you are a YubiKey user, chances are you have multiple YubiKeys for redundancy and/or convenience. yop is a command line tool that allows keeping OTP credentials on multiple YubiKeys in sync.
2024 · github.com · its alternatives →
- 18

Keyboard with built-in touchpad
2024 · kickstarter.com · its alternatives →
- 19
Google Titan▲261A 2FA device to protect yourself from hackers
2018 · store.google.com · its alternatives →
- 20

Yubico's latest USB-C & NFC, Multi-Protocol, Security Key!
2020 · yubico.com · its alternatives →
- 21

- 22

Open security key to protect your Gmail, Twitter, GitHub, ..
2021 · indiegogo.com · its alternatives →
- 23
2FA to Tray▲91The missing 2FA manager for macOS.
2020 · 2fatotray.unicornplatform.com · its alternatives →
- 24

Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →