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Software · Security & privacy

Yubico Authenticator

Graphical interface for displaying OATH codes with a YubiKey.

  • Completely free
  • Windows, macOS, Linux, Android and iOS
  • Open source
  • No account

Overview

Yubico Authenticator is a two-factor authentication program, available on Windows, macOS, Linux, Android and iOS.

Services and protocols mentioned: NFC.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Secure your accounts and protect your data with the Yubico Authenticator App.” — official website, 10 November 2026

At a glance

Yubico Authenticator is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (BSD-2-Clause) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

  • Open source code
  • No account needed
  • No advertising
  • Commercial use allowed

About

Generating Open Authentication (OATH) time-based TOTP and event-based HOTP one-time password codes, with the help of a YubiKey that protects the shared secrets. Features: Add a credential by scanning a QR code on the screen Favorite your most used credentials for easy access Keep your secret seeds safe by storing them on a YubiKey Require a touch on YubiKey to generate the code Protect your credentials with a device password Connect an external smart card reader and use the YubiKey over NFC

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Unspecified source (platforms) —
  • Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) —
  • Facts collected from Winget (Windows Package Manager) (credit card, account, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Homebrew (platforms) —
  • Last technical check: 5 November 2026
  • Description from Flathub — AppStream (Flathub)

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