Life & fun · alternatives · 2026
24 alternatives to Krypton – make your phone a U2F Authenticator
Unphishable, zero-touch two-factor logins
Krypton turns a smartphone into a U2F security key for two-factor authentication. It pairs securely with a computer to enable automatic sign-ins without typing codes or waiting for SMS messages, eliminating common… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Krypton – make your phone a U2F Authenticator launched in 2018; newer entries below may have overtaken it.
- 1KA
Unphishable, zero-touch two-factor logins
2017 · krypt.co · its alternatives →
- 2KF
Unphishable, zero-touch two-factor logins
2018 · krypt.co · its alternatives →
- 3
Google Titan▲261A 2FA device to protect yourself from hackers
2018 · store.google.com · its alternatives →
- 4
U2F USB token optimized for physical security, affordability, and style - conorpp/u2f-zero
2016 · github.com · its alternatives →
- 5
- 6
A Virtual FIDO2 USB Device. Contribute to bulwarkid/virtual-fido development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 7
- 8
2FA codes in your browser, secured by the way you type
2018 · typingdna.com · its alternatives →
- 9
Authenticate Wi‑Fi users with SMS or vouchers at hotels, restaurants and cafes
2016 · getwi.fi · its alternatives →
- 10
- 11
idemeum▲91Passwordless login with one-click, biometric, or QR-code
2021 · idemeum.com · its alternatives →
- 12
Authy▲177Dead simple two-factor authentication optimized for devs
2014 · authy.com · its alternatives →
- 13
- 14
Secure 2FA app for iPhone, iPad, iPod, Apple Watch & Mac
2023 · authenticator.2stable.com · its alternatives →
- 15
- 16
An indie project for early 2010s internet addicts
2024 · jacobbartlett.substack.com · its alternatives →
- 17
Stop rewriting 2FA tokens, safely log in with just one tap
2023 · 2fas.com · its alternatives →
- 18
Two-factor authentication in your browser itself
2021 · authenticator.cc · its alternatives →
- 19
QR Card▲100Your business card on the smartphone lock screen
2020 · play.google.com · its alternatives →
- 20
Secure 2FA, passwords & data – synced across all devices
2025 · linktr.ee · its alternatives →
- 21
Your Keys. Your Jurisdiction
Mar 2026 · x2y-authenticator.en.uptodown.com · its alternatives →
- 22
Secure, encrypted and fast two-factor authentication app
2021 · authenticator.2stable.com · its alternatives →
- 23
Smart security key for all credentials - 2FA or passwordless
2022 · crayonic.com · its alternatives →
- 24
Headless cloud-native authentication and identity management written in Go. Scales to a billion+ users. Replace Homegrown, Auth0, Okta, Firebase with better UX and DX. Passkeys, Social Sign In, OIDC, Magic Link, Multi-Factor Auth, SMS, SAML, TOTP, and more. Runs everywhere, runs best on Ory Network.
2023 · github.com · its alternatives →
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- Google Titan alternatives
- A secure, open source U2F token you can make with $4.5 worth of parts alternatives
- Keyri alternatives
- A virtual Yubikey device for 2FA/WebAuthN alternatives
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 →