Dev tools · alternatives · 2026

24 alternatives to Kryptonite

A new home for your SSH private key

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Kryptonite launched in 2017; newer entries below may have overtaken it.

1. 1KA
   Kryptonite – a new home for your SSH private key▲338

   Unphishable, zero-touch two-factor logins

   2017 · krypt.co · its alternatives →

2. 2
   Kryptonite▲7

   The new home for your SSH private key on your phone

   2017 · its alternatives →

3. 3KF
   Krypton for Teams – Simple SSH Key Storage for DevOps▲53

   Unphishable, zero-touch two-factor logins

   2018 · krypt.co · its alternatives →

4. 4
   KeyBox▲70

   A web-based SSH console

   2014 · sshkeybox.com · its alternatives →

5. 5
   keychains.dev▲177

   Hi HN — I’m a heavy OpenClaw user and, like many others, I’ve been thinking about how to give these new “unleashed” agents secure access to my accounts. Agents need API access to be useful. But API keys are long-lived secrets. And agents are not secure environments. So I built something for myself that quickly turned into a product: keychains.dev. The idea is simple: agents never see raw credentials. With Keychains.dev: • Agents make API calls via a drop-in replacement for curl or JavaScript’s fetch() • They use template variable names instead of embedding credentials • The request is…

   Feb 2026 · keychains.dev · its alternatives →

6. 6
   Keybase▲90

   A public directory of publicly auditable public keys

   2014 · keybase.io · its alternatives →

7. 7
   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 →

8. 8SA
   Shhhbb, an SSH BBS▲188

   Hello all :) I made this BBS for fun and thought you all would enjoy it. It's not perfect, but it's been a fun exercise! see it: https://asciinema.org/a/Emg6SWrXMV6cehfQxrw1GRu75 try it: ssh -p 2223 shhhbb.com host it: https://github.com/donuts-are-good/shhhbb/releases/latest why? Every year I challenge myself in some new way, this year it is to push one project per week. You might recognize my static site generator [0] or my releaser for go [1] from previous posts as one of these weekly projects. If you want to join me in doing this, it's…

   2023 · donuts-are-good.github.io · its alternatives →

9. 9KS
   Keypub.sh – OAuth for the terminal using SSH keys▲222

   Hi HN! I built KeyPub.sh to solve the problem of user verification for CLI applications. It's essentially OAuth for the terminal, but using SSH keys that developers and users already have. - No installation needed - works with existing SSH setup - Privacy-focused: users control what email info is shared - Simple email verification process - Free public service - Perfect for CLI app developers who don't want to build user verification Try it with: `$ ssh keypub.sh about` Source code: https://github.com/skariel/keypub

   2024 · keypub.sh · its alternatives →

10. 10
    Nutty▲60

    SSH-Terminal sharing using Browser

    2014 · nutty.io · its alternatives →

11. 11
    I built a simple, open-source tool to manage servers and SSH keys▲133

    Simple way to manage your remote machines and SSH keys - d3witt/viking

    2024 · github.com · its alternatives →

12. 12
    Lock Smart▲117

    Keyless security lock

    2016 · dogandbonecases.com · its alternatives →

13. 13
    Bitium▲82

    Securely manage your company’s apps, users and passwords

    2014 · docs.cloud.google.com · its alternatives →

14. 14
    Keybase for Chrome▲174

    A secure chat button for every profile

    2017 · book.keybase.io · its alternatives →

15. 15
    Kryptview▲146

    Find out what the community truly thinks about a crypto

    2022 · kryptview.com · its alternatives →

16. 16
    Konfident▲70

    The secure workspace that does not keep your keys

    2018 · konfident.io · its alternatives →

17. 17
    Sharelock▲94

    Allows you to share data easily and securely.

    2015 · its alternatives →

18. 18
    Kryptor – A simple, modern, and secure encryption tool▲78

    2021 · kryptor.co.uk · its alternatives →

19. 19
    KeyMe▲126

    Copy keys. Solve lockouts.

    2014 · key.me · its alternatives →

20. 20
    Mosh▲92

    SSH. Reinvented by MIT. Allows roaming, and much more.

    2014 · mosh.org · its alternatives →

21. 21
    Deveo▲101

    Free private code hosting for Git, Mercurial, & SVN

    2016 · perforce.com · its alternatives →

22. 22
    Ring▲83

    A free software for distributed and secured communication

    2015 · its alternatives →

23. 23
    Kryptor▲84

    A simple, modern, and secure encryption tool

    2021 · kryptor.co.uk · its alternatives →

24. 24
    Dark Wallet▲78

    Next-gen privacy and security for Bitcoin, crowdsourced.

    2014 · darkwallet.is · its 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 →