OnlyKey Alternatives

OnlyKey is described as 'Open source alternative to YubiKey. OnlyKey natively supports: a hardware password manager, multiple two-factor methods (FIDO2, TOTP, and Yubico® OTP), passwordless SSH login, and OpenPGP' and is an app in the security & privacy category. There are more than 10 alternatives to OnlyKey for a variety of platforms, including Android, iPhone, Linux, iPad and Mac apps. The best OnlyKey alternative is Bitwarden Authenticator, which is both free and Open Source. Other great apps like OnlyKey are Authy, andOTP, Google Authenticator and YubiKey.

filter to find the best alternatives

OnlyKey alternatives are mainly Authenticators but may also be Password Managers or QR Code Readers.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of OnlyKey.
OnlyKey iconOnlyKey
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OnlyKey is an open source alternative to YubiKey. OnlyKey natively supports: a hardware password manager, multiple two-factor methods (FIDO2, TOTP, and Yubico® OTP), passwordless SSH login, and OpenPGP.

More about OnlyKey
OnlyKey alternatives page was last updated Oct 24, 2024
  1. Bitwarden Authenticator icon
     40 likes

    Bitwarden Authenticator generates verification codes for two-factor authentication, ensuring your identity is verified when you log into accounts. Using industry-standards, Bitwarden Authenticator supports any website or application that uses TOTP.

    48 Bitwarden Authenticator alternatives
    Bitwarden Authenticator screenshot 1
    Bitwarden Authenticator screenshot 2
    +1
    Bitwarden Authenticator screenshot 3

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Two-factor Authentication
    2.  Multi-Factor Authentication (MFA)
    3.  Time-based One-time Password
    4.  Cloud Sync
    5.  Works Offline
    6.  Biometric Authentication
    7.  Dark Mode
    Bitwarden Authenticator iconOnlyKey Icon

    Bitwarden Authenticator VS OnlyKey

    Is this a good alternative to OnlyKey?
     
    • Bitwarden Authenticator is the most popular Android, iPhone, iPad & Android Tablet alternative to OnlyKey.

    • Bitwarden Authenticator is the most popular Open Source & free alternative to OnlyKey.

    • Bitwarden Authenticator is Free and Open SourceOnlyKey is Paid and Open Source
    • Bitwarden Authenticator is Privacy focused and LightweightOnlyKey is not according to our users
  2. Authy icon
     225 likes

    Manage two-factor authentication seamlessly across various platforms with secure cloud backups and offline access. From Gmail to LastPass, enhance security effortlessly. Sync multiple devices securely and protect sensitive data with robust encryption.

    70 Authy alternatives
    Authy screenshot 1
    Authy screenshot 2
    +1
    Authy screenshot 3

    License model

    • FreeProprietary

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Apple Watch

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  Two-factor Authentication
    2.  Cloud Sync
    3.  Encrypted Backup
    4.  Time-based One-time Password
    5.  Multi-Factor Authentication (MFA)
    6.  Cloud based
    7.  Multiple Account support
    8.  Biometric Authentication
    9.  Password protection
    10.  Ad-free
    11.  Dark Mode
    12.  Works Offline
    Authy iconOnlyKey Icon

    Authy VS OnlyKey

    Is Authy a good alternative to OnlyKey?
     
  3. andOTP icon
     78 likes

    It implements Time-based One-time Passwords (TOTP) and HMAC-Based One-Time Passwords (HOTP). Simply scan the QR code and login with the generated 6-digit code.

    43 andOTP alternatives
    Main (Light theme)
    Settings (Light theme)
    +3
    Backup (Light theme)

    License model

    • FreeOpen Source

    Platforms

    • Android
    • Android Tablet

    Properties

    1.  Privacy focused
    2.  Security-focused

    Features

    1.  Encrypted Backup
    2.  Dark Mode
    3.  Time-based One-time Password
    4.  Two-factor Authentication
    5.  Unlock pin
    6.  Multi-Factor Authentication (MFA)
    7.  Biometric Authentication
    8.  Unlock with fingerprint
    9.  Icon sets
    10.  Sort by date
    11.  Sorting by tags
    12.  Password Generator
    Discontinued

    Unmaintained, see https://github.com/andOTP/andOTP and developers announcement on XDA https://forum.xda-developers.com/t/app-4-4-open-source-andotp-open-source-two-factor-authentication-for-android.3636993/post-87021655. The GitHub repository was also archived in June 2022.

    andOTP iconOnlyKey Icon

    andOTP VS OnlyKey

    Is andOTP a good alternative to OnlyKey?
     
  4. Google Authenticator icon
     70 likes

    Google Authenticator generates 2-Step Verification codes on your phone.

    75 Google Authenticator alternatives
    Google Authenticator screenshot 1
    Google Authenticator screenshot 2
    +3
    Google Authenticator screenshot 3

    License model

    • FreeProprietary

    Application type

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • iPad

    Google Authenticator Features

    1.  Two-factor Authentication
    2.  Time-based One-time Password
    3.  Dark Mode
    4.  Cloud Sync
    5.  Multiple Account support
    6.  Multi-Factor Authentication (MFA)
    Google Authenticator iconOnlyKey Icon

    Google Authenticator VS OnlyKey

    Is Google Authenticator a good alternative to OnlyKey?
     
  5. YubiKey icon
     31 likes

    The multi-protocol security key offers the highest assurance, protecting devices with passwordless workflows and strong 2FA against phishing. It plugs into computers, tablets, and mobile devices, integrates PIN or biometric for identity verification, and reduces helpdesk costs.

    23 YubiKey alternatives
    YubiKey screenshot 1

    License model

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Google Chrome

    YubiKey Features

    1.  Two-factor Authentication
    YubiKey iconOnlyKey Icon

    YubiKey VS OnlyKey

    Is YubiKey a good alternative to OnlyKey?
     
    • YubiKey is the most popular Windows, Mac & Linux alternative to OnlyKey.

    • YubiKey is the most popular commercial alternative to OnlyKey.

    • YubiKey is Paid and ProprietaryOnlyKey is Paid and Open Source
  6. Nitrokey icon
     17 likes

    Email Encryption. Encrypt your emails with GnuPG, OpenPGP, S/MIME or your favourite email client. Keep your secret keys secure on your Nitrokey.

    13 Nitrokey alternatives

    License model

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub

    Properties

    1.  Privacy focused

    Features

    1.  Two-factor Authentication
    2.  Time-based One-time Password
    3.  Hardware securite module (HSM)
    4.  HMAC-Based One-Time Password (HOTP)
    5.  OpenPGP
    6.  PGP Encryption
    7.  Biometric Authentication
    8.  Works Offline
    9.  Password safe
    10.  S/MIME Support
    Nitrokey iconOnlyKey Icon

    Nitrokey VS OnlyKey

    Is Nitrokey a good alternative to OnlyKey?
     
  7. OVault icon
     3 likes

    OVault is a super simple OTP app that lets you view and manage OTPs for all your accounts. Set up OTPs by scanning QR codes with your devices Camera App, or by manually providing the OTP secret to the app.

    51 OVault alternatives
    OVault screenshot 1

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • iPhone
    • iPad

    Properties

    1.  Lightweight
    2.  Privacy focused

    Features

    1.  No Tracking
    2.  Ad-free
    3.  Time-based One-time Password
    4.  Works Offline
    5.  No registration required
    6.  Sync with iCloud
    7.  iOS widget
    8.  Keychain
    OVault iconOnlyKey Icon

    OVault VS OnlyKey

    Is OVault a good alternative to OnlyKey?
     
  8. GNOME Authenticator icon
     11 likes

    Gnome Authenticator is a desktop 2FA code generator for Linux desktops, like Ubuntu.

    24 GNOME Authenticator alternatives
    GNOME Authenticator screenshot 1

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Linux
    • Linux Mobile
    • Flathub
    • GNOME

    Properties

    1.  Privacy focused

    Features

    1.  Two-factor Authentication
    2.  Time-based One-time Password
    3.  Multi-Factor Authentication (MFA)
    4.  Google Authenticator
    5.  Multiple Account support
    6.  Dark Mode
    GNOME Authenticator iconOnlyKey Icon

    GNOME Authenticator VS OnlyKey

    Is GNOME Authenticator a good alternative to OnlyKey?
     
  9. Keysmith icon
     5 likes

    Keysmith is a token generator for your two-factor authentication (2FA) logins. It supports time and hash-based one-time passwords (TOTP/HOTP).

    69 Keysmith alternatives
    Keysmith screenshot 1

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Linux
    • KDE Plasma
    • Linux Mobile
    • Flathub
    • Plasma Mobile
    • Flatpak

    Properties

    1.  Privacy focused

    Features

    1.  Two-factor Authentication
    2.  Time-based One-time Password
    Keysmith iconOnlyKey Icon

    Keysmith VS OnlyKey

    Is Keysmith a good alternative to OnlyKey?
     
  10. Microsoft Authenticator icon
     17 likes

    Sign in is easy, convenient, and secure when you use Microsoft Authenticator. Use your phone, not your password, to log into your Microsoft account. You simply have to enter your username, then approve the notification sent to your phone.

    56 Microsoft Authenticator alternatives
    Microsoft Authenticator screenshot 1
    Microsoft Authenticator screenshot 2
    +2
    Microsoft Authenticator screenshot 3

    License model

    • FreeProprietary

    Platforms

    • Android
    • iPhone
    • Android Tablet
    • Windows Phone
    • iPad

    Microsoft Authenticator Features

    1.  Two-factor Authentication
    2.  Time-based One-time Password
    3.  Biometric Authentication
    4.  Cloud Sync
    5.  Multiple Account support
    6.  Multi-Factor Authentication (MFA)
    7.  Password protection
    Microsoft Authenticator iconOnlyKey Icon

    Microsoft Authenticator VS OnlyKey

    Is this a good alternative to OnlyKey?
     
  11. OTPClient icon
     6 likes

    GTK+ application for securely managing TOTP & HOTP tokens. Content is encrypted on disk using AES256-GCM. Master password derived using PBKDF2 with 100k iterations & SHA512 as hash algorithm. Can import encrypted backups from andOTP & Authenticator+.

    34 OTPClient alternatives
    Main - empty
    Add code
    +1
    Import, export, change, edit

    License model

    • FreeOpen Source

    Application type

    Platforms

    • Linux
    • Flathub
    • GNOME

    Properties

    1.  Privacy focused
    2.  Lightweight

    Features

    1.  Two-factor Authentication
    2.  Time-based One-time Password
    3.  Works Offline
    4.  Dark Mode
    5.  Ad-free
    6.  Multi-Factor Authentication (MFA)
    OTPClient iconOnlyKey Icon

    OTPClient VS OnlyKey

    Is OTPClient a good alternative to OnlyKey?
     
  12. CanoKeys icon
     2 likes

    An open-source secure key.

    11 CanoKeys alternatives
    CanoKeys screenshot 1

    License model

    • FreeOpen Source

    Platforms

    • Mac
    • Windows
    • Linux

    CanoKeys Features

    1.  OpenPGP
    2.  Time-based One-time Password
    CanoKeys iconOnlyKey Icon

    CanoKeys VS OnlyKey

    Is CanoKeys a good alternative to OnlyKey?
     
12 of 22 OnlyKey alternatives