Alternatives

Products that do what Secria does

Post-quantum secure email, private by design

1. 1EE
   Encrypted emails based on Signal protocol with post-quantum algorithms▲10

   Hi HN, we have recently completed a research project on how to encrypt emails with post-quantum secure algorithms as well as Forward Secrecy. We'd love to hear your feedback and discuss technical issues. The paper can be found here: https://eprint.iacr.org/2021/875

   2021

2. 2KA
   Kryptonite – a new home for your SSH private key▲338

   2017 · krypt.co

3. 3
   ProtonMail▲199

   End-to-end encrypted email - now on iOS & Android

   2016

4. 4
   Secur3▲77

   First decentralized 2FA solution for self-custodial wallets

   2022

5. 5
   ProtonMail▲144

   Encrypted email, made simple. Now open to everybody.

   2015

6. 6
   Just Mail▲64

   Secured email platform based on distributed storage network

   2014

7. 7
   Skiff Mail▲165

   Private, end-to-end encrypted, open-source mail

   2022

8. 8
   ProtonMail▲82

   End-to-end encrypted email, based in Switzerland.

   2014

9. 9
   Hansel by Seedling▲106

   Your email, your server, your keys so you're not locked out

   20d ago · github.com

10. 10
    Enclosed▲143

    Send private and secure notes

    2024

11. 11
    AnyAlias▲199

    Protect your email address.

    2017

12. 12
    Secret▲173

    Send a message through a safe, private, and encrypted link

    2017

13. 13
    Emailgurus - Open Source▲111

    Keep your Gmail inbox focused on people you know

    2022

14. 14EE
    Easy Email Encryption inside Gmail (Alpha, Open-Source)▲170

    2013 · streak.com

15. 15
    Secli▲85

    A CLI to store secrets locally

    2022

16. 16
    ProtonMail 2.0▲214

    Secure email that respects your privacy, with slick new look

    2021

17. 17
    CloakGuru▲95

    Send and receive emails anonymously

    2024

18. 18
    QU3▲133

    Quantum-safe MCP servers for private, verifiable inference

    2025

19. 19
    StealthMail▲67

    Best-in-class secure email channel solutions 📧🔒

    2018

20. 20
    1ty.me▲158

    Self destructing links for sharing sensitive information

    2018

21. 21
    Guardian Network - Keyper▲72

    Never worry about crypto seed phrases again

    2022

22. 22
    BMail▲93

    Encrypt emails and attachments

    2024

23. 23
    Private Party▲149

    The underground party that stops tech giants from creeping.

    2019

24. 24
    SecuPress▲100

    Protect your WordPress website and your data every day

    2016

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