Dev tools · alternatives · 2026

24 alternatives to Cryptshare for Outlook

Easy enterprise mail encryption and large file transfer

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Cryptshare for Outlook launched in 2016; newer entries below may have overtaken it.

1. 1
   ProtonMail▲144

   Encrypted email, made simple. Now open to everybody.

   2015 · proton.me · its alternatives →

2. 2
   Just Mail▲64

   Secured email platform based on distributed storage network

   2014 · its alternatives →

3. 3
   ProtonMail▲199

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

   2016 · proton.me · its alternatives →

4. 4
   Beeble▲314

   The safest platform to exchange emails and store files

   2024 · beeble.com · its alternatives →

5. 5
   BLAZE Transfer▲231

   Send big files securely with BLAZE quantum-safe encryption

   2023 · blaze.cx · its alternatives →

6. 6
   Mailcloud▲110

   A New Way to Email

   2014 · mailcloudapp.com · its alternatives →

7. 7
   Criptext▲83

   Encrypt, track, and recall your emails

   2015 · its alternatives →

8. 8
   Dark Mail▲62

   Truly Encrypted Email That Even Encrypts the Metadata

   2014 · its alternatives →

9. 9
   Send/Share Files by Couchdrop▲135

   Send encrypted file links instead of email attachments

   Oct 2025 · couchdrop.io · its alternatives →

10. 10
    Hop Encrypted Email▲132

    Completely private chat email, w/ encrypted email messaging

    2017 · spikenow.com · its alternatives →

11. 11
    yasoon▲74

    Let your Outlook inbox fall in love with the cloud

    2014 · yasoon.com · its alternatives →

12. 12
    Clearbit Connect for Microsoft Outlook▲160

    Know everything about the people you email

    2017 · clearbit.com · its alternatives →

13. 13
    Inky 3▲160

    Send encrypted emails using your current email provider

    2016 · inky.com · its alternatives →

14. 14
    Keybase for Mobile▲159

    End-to-end encryption messaging platform

    2017 · keybase.io · its alternatives →

15. 15
    M for iOS▲126

    Email app with automatic encryption

    2015 · mynigma.org · its alternatives →

16. 16
    Mailvelope▲61

    End-to-end email encryption for webmail

    2021 · mailvelope.com · its alternatives →

17. 17
    Cloudmagic▲123

    Compete Your Work Right From Your Email Inbox

    2014 · cloudmagic.com · its alternatives →

18. 18
    ProtonMail▲82

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

    2014 · proton.me · its alternatives →

19. 19
    Sunshine▲140

    Instant file sharing without cloud storage

    2015 · sunshineapp.com · its alternatives →

20. 20
    transferfile.io▲85

    Encrypted filesharing through the IPFS network

    2021 · sedo.com · its alternatives →

21. 21
    Jumble▲88

    E-mail encryption plugin for Chrome

    2014 · its alternatives →

22. 22
    Newton by CloudMagic▲118

    Supercharged emailing with space-age features

    2016 · cloudmagic.com · its alternatives →

23. 23
    SendSecure.io▲96

    Send and share files securely, directly and free

    2019 · its alternatives →

24. 24
    Duffel▲106

    The easiest way to download your emails

    2015 · onassar.github.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 →