Life & fun · alternatives · 2026

24 alternatives to FIDO U2F Security Key

Strong authentication with a simple touch of a button

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. FIDO U2F Security Key launched in 2016; newer entries below may have overtaken it.

1
Fido▲194
The safest and most minimalistic smart lock
2019 · indiegogo.com · its alternatives →
2
Corbado▲571
Passkey-first authentication for developers
2024 · corbado.com · its alternatives →
3
A secure, open source U2F token you can make with $4.5 worth of parts▲267
U2F USB token optimized for physical security, affordability, and style - conorpp/u2f-zero
2016 · github.com · its alternatives →
4
A virtual Yubikey device for 2FA/WebAuthN▲166
A Virtual FIDO2 USB Device. Contribute to bulwarkid/virtual-fido development by creating an account on GitHub.
2022 · github.com · its alternatives →
5
SoloKeys▲139
Secure login made open and easy 🔒
2018 · solokeys.com · its alternatives →
6
Solo▲12
The first open source FIDO2 security key. USB & NFC
2018 · kickstarter.com · its alternatives →
7
YubiKey 5Ci▲129
Security key with dual support for USB-C and Lightning
2019 · yubico.com · its alternatives →
8
Solo, open source FIDO2 security key▲98
Solo 1 firmware in C. Contribute to solokeys/solo1 development by creating an account on GitHub.
2018 · github.com · its alternatives →
9
OnlyKey▲118
OnlyKey is an open source alternative to YubiKey
2019 · onlykey.io · its alternatives →
10
FIDO2 USB+NFC token optimized for security, extensibility, and style▲11
Solo 1 firmware in C. Contribute to solokeys/solo1 development by creating an account on GitHub.
2018 · github.com · its alternatives →
11
SeKey: An SSH Agent for OS X, Using Secure Enclave and TouchID, in Rust▲169
Use Touch ID / Secure Enclave for SSH Authentication! - sekey/sekey
2017 · github.com · its alternatives →
12
amiPro FIDO2/WebAuthN server & SDKs▲5
Revolutionize Your Authentication with Seamless Passkeys
Jan 2026 · amipro.me · its alternatives →
13FU
Fido U2F on Android▲5
2019 · hwsecurity.dev · its alternatives →
14
A fork of sudo with Touch ID support▲347
A fork of `sudo` with Touch ID support. Contribute to mattrajca/sudo-touchid development by creating an account on GitHub.
2016 · github.com · its alternatives →
15
Zendo▲82
Secure Mobile Messenger using OTP Encryption (iOS/Android)
2015 · apps.apple.com · its alternatives →
16
OnlyKey DUO▲88
Open source Yubikey alternative with dual USB-C and USB-A
2021 · onlykey.io · its alternatives →
17KM
Krypton – make your phone a U2F Authenticator▲12
Unphishable, zero-touch two-factor logins
2018 · krypt.co · its alternatives →
18
Invite friends to SSH into your laptop using their GitHub handle▲334
We talk about a new feature in Teleconsole:\ you can turn any laptop into a secure and publicly accessible SSH server which uses Github SSH keys for authentication.
2017 · gravitational.com · its alternatives →
19
MiniKey▲103
The simplest 2FA app for Mac
2021 · minikey.app · its alternatives →
20
Google Titan▲261
A 2FA device to protect yourself from hackers
2018 · store.google.com · its alternatives →
21
YubiKey 5 NFC▲6
Hardware authentication FIDO2 WebAuthn NFC
2018 · yubico.com · its alternatives →
22
auth.▲66
2FA , MFA, OTP, Secure Code for Apple devices
2021 · auth.startway.io · its alternatives →
23
Crowd Supply▲7
A tiny FIDO2 security key for 2FA and passwordless login.
2015 · crowdsupply.com · its alternatives →
24
Authentiq▲157
Strong authentication, without the passwords
2017 · its alternatives →

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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 →