Alternatives

Products that do what SharedOTP – Shared two-factor authentication mechanism does

1. 1TA
   Twofu: A Two-Factor Authenticator Command-Line App▲11

   2016 · github.com

2. 2AO
   Authian – Open Source 2-Factor Authentication Using Instant Messengers▲37

   2017 · authian.org

3. 3TE
   The easiest 2-factor auth▲27

   2014 · developer.mepin.com

4. 4
   Authy▲177

   Dead simple two-factor authentication optimized for devs

   2014

5. 5CA
   Commento: a fast, privacy-focused alternative to Disqus▲271

   2019 · commento.io

6. 62A
   2FA, a one-file 2-factor authentication app written in Python▲8

   2020 · gist.github.com

7. 7OC
   Oathkeeper – Cloud-Native Identity and Access Proxy▲174

   2018 · github.com

8. 8LL
   Link-lock – Distributed app to password-protect URLs▲73

   2020 · github.com

9. 9AN
   A non-OTP 2-factor authentication Chrome app▲8

   2015 · logintc.com

10. 10ST
    SoundLogin – two-factor authentication via sound notifications▲16

    2015 · soundlogin.com

11. 11DH
    Diffie-Hellman exchange for the layman▲75

    2021 · borisreitman.com

12. 12KA
    KCP: a new low-latency, secure network stack▲82

    2020 · improbable.io

13. 13EM
    Easy magic-link authentication – Cierge▲11

    2018 · github.com

14. 14PF
    Private Forms: PGP-Encrypted Webforms for Privacy-Conscious Receipients▲60

    2015 · privateforms.com

15. 15NA
    Nod – Anonymous proximity messenger▲53

    2015 · yougotthenod.com

16. 16KA
    Kryptor – A simple, modern, and secure encryption tool▲78

    2021 · kryptor.co.uk

17. 17SA
    Slyde – A new privacy-focused general social network▲62

    2020 · slyde.network

18. 18AD
    A decentralized Internet identity system I'm working on.▲67

    2013 · nameblossom.org

19. 19NA
    NoKey, a Distributed Password Manager Without a Master Password▲37

    2018 · github.com

20. 20TF
    Two-Factor Auth with Emojis▲6

    2021 · authmoji.com

21. 21PO
    Passbolt – open-source password manager for teams▲62

    2016 · passbolt.com

22. 22CS
    Cocert: split your private keys securely amongst untrusted network▲37

    2021 · github.com

23. 23PA
    Phido2 – A PHP Library for Authentication by Windows Hello▲13

    2016 · github.com

24. 24CI
    Cryptob.in – A snippet share tool with client-side encryption▲19

    2017 · cryptob.in

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