Life & fun · alternatives · 2026

24 alternatives to Let's Encrypt

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

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Let's Encrypt launched in 2015; newer entries below may have overtaken it.

1. 1
   Let's Encrypt▲11

   Free SSL/TLS certificates.

   2019 · its alternatives →

2. 2
   Encryps▲7

   Encrypt unlimited bits.

   2017 · its alternatives →

3. 3
   Encrypto▲141

   Encrypt the files you send.

   2015 · its alternatives →

4. 4LA
   Lego – A Let's Encrypt Library and CLI in Go▲93

   2015 · github.com · its alternatives →

5. 5AT
   Acme-tiny, a tiny 200-line Let's Encrypt client▲280

   2015 · github.com · its alternatives →

6. 6
   DocSecrets▲85

   Encrypt your Google Docs

   2015 · its alternatives →

7. 7
   Let's Seal – Let's Encrypt for document signing, free and self-hosted▲94

   TLDR, Let's Seal gives the finger to Adobe and every doc signing tool (docusign, google, etc) who pay to play with the Adobe Approved Trust List and then charge you for something that should be free. Currently even the person checking if a document/contract is sealed or code is authentic has to also be inside the same Adobe walled garden too. Verification, the part that should be free is the part everyone charges for. Thats the shape Let's Encrypt fixed for TLS, and I wanted the same thing for documents and files. The core idea therefore needed to go a bit beyond e signatures and i…

   Jul 2026 · github.com · its alternatives →

8. 8
   Cryptocat▲61

   In-browser encrypted chat (open source)

   2014 · its alternatives →

9. 9
   Scramblage▲73

   Encrypt and share photos with friends

   2014 · its alternatives →

10. 10
    SecretCrypt – Keeping secrets in plain sight▲75

    2016 · zemanta.github.io · its alternatives →

11. 11
    Crypto 101▲126

    Free Intro course on cryptography available for programmers

    2014 · its alternatives →

12. 12LS
    Lescript – Simple PHP client library for Let's encrypt▲96

    2015 · github.com · its alternatives →

13. 13
    Hardbin▲91

    The world's most secure encrypted pastebin

    2017 · its alternatives →

14. 14
    Cryptoshift▲71

    End-to-end push technology encryption for the 21st century.

    2015 · its alternatives →

15. 15AL
    ACME Let's Encrypt client – binary releases, works like 'make'▲83

    2015 · github.com · its alternatives →

16. 16
    Encryptr▲7

    Free & Open Source Password Manager

    2016 · its alternatives →

17. 17
    SecureDB▲83

    Encryption as a service for mobile, web and IoT applications

    2015 · its alternatives →

18. 18
    Todo for hackers▲101

    CLI Todo app for hackers

    2015 · its alternatives →

19. 19
    Jumble▲88

    E-mail encryption plugin for Chrome

    2014 · its alternatives →

20. 20
    MagicPad▲110

    Free and open-source encryption suite

    2019 · its alternatives →

21. 21LS
    LEManager – Simple web-admin for managing Let's encrypt certificates▲6

    2015 · github.com · its alternatives →

22. 22GC
    GetHTTPSforFree.com, a no-install browers-based Let's Encrypt client▲18

    2015 · gethttpsforfree.com · its alternatives →

23. 23
    Criptext▲83

    Encrypt, track, and recall your emails

    2015 · its alternatives →

24. 24
    Ring▲83

    A free software for distributed and secured communication

    2015 · 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 →