Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Certera – A central validation server for Let's Encrypt certificates launched in 2019; newer entries below may have overtaken it.

1. 1
   Let's Encrypt▲26

   A new Certificate Authority - free, automated, and open.

   2015 · letsencrypt.org · its alternatives →

2. 2EO
   EMP – Open Source Encrypted Messaging▲7

   2014 · emp.jar.st · its alternatives →

3. 3MS
   Minimalistic secure open source paste bin service▲9

   2016 · bin.so · its alternatives →

4. 4AE
   Algebraic — Effortless macOS file encryption, integrated with Finder.▲7

   2022 · algebraic.cc · its alternatives →

5. 5OS
   Open-Source, End-to-End Encrypted, Anywhere-to-Anywhere, RPCs▲6

   2020 · telekinesis.cloud · its alternatives →

6. 6
   Tresorit▲20

   Encrypted cloud storage and sharing

   2014 · tresorit.com · its alternatives →

7. 7TB
   Trust badges for your Let's Encrypt certificate▲6

   2018 · trustocity.com · its alternatives →

8. 8SP
   Side project turned startup - Online Privacy via Client-side encryption▲5

   2011 · socialfortress.com · its alternatives →

9. 9
   Nullsec – server-blind encrypted paste▲6

   Sep 2026 · nullsec.pntr.dev · its alternatives →

10. 10RT
    Real-time uptime monitor of Let's Encrypt▲5

    2020 · keychest.net · its alternatives →

11. 11CF
    Conclave - free, encrypted collaboration for personal and business▲5

    2017 · conclave.global · its alternatives →

12. 12
    crype – diffable/syncable encryption for files or shell pipes▲5

    2014 · code.ivysaur.me · its alternatives →

13. 13
    Secure end-to-end client sessions and API calls using crypto key pairs▲9

    Hello. I made this project as an experiment in using key cryptography for user identity in a client server model, and for some future peer to peer projects that I am working on. I am looking for feedback, please let me know what you think. Also, Merry Christmas to HN! :-)

    2022 · github.com · its alternatives →

14. 14NG
    NSA-grade encryption and anonymization for health and financial data▲9

    2018 · nukleosome.com · its alternatives →

15. 15CA
    Cheshire: a CryptoKitties developer sandbox▲7

    2018 · medium.com · its alternatives →

16. 16SC
    Smart Contracts for Cracking Passwords▲9

    2017 · initialized.github.io · its alternatives →

17. 17SI
    SecureSend.io, two-factor encrypted messages▲5

    2015 · securesend.io · its alternatives →

18. 18EE
    E2E encrypted “multiplayer” text editor on the web in 6kb▲9

    2022 · picnic.lecaro.me · its alternatives →

19. 19WT
    Web Tunnels – Passwordless authentication for the web▲6

    2024 · pico.sh · its alternatives →

20. 20FG
    Freenet Ghost Keys: Anonymous, Verifiable Identities▲6

    2024 · freenet.org · its alternatives →

21. 21
    Crypto data from multiple exchanges to multiple storage systems-Updated▲8

    2021 · github.com · its alternatives →

22. 22LA
    Letsencrypt (and other) certificate dashboard▲6

    2017 · keychest.net · its alternatives →

23. 23PF
    PubStorm – Free CLI-based static web hosting with Let's Encrypt support▲9

    2016 · pubstorm.com · its alternatives →

24. 24SA
    Sqreen API, a security toolbox for developers▲8

    2017 · sqreen.io · 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 →