Alternatives

Products that do what Clausign does

Send secure document links, not risky attachments

1. 1
   Skiff▲165

   Simple & secure privacy-first notes and collaboration

   2021

2. 2
   LeaksID 2.0 for Trade Secrets▲206

   Securely share your pitches, reports & intellectual property

   2022

3. 3
   Documenso 2.0.0▲451

   Enterprise-Grade Signature Infrastructure for Everyone

   Nov 2025

4. 4
   Send/Share Files by Couchdrop▲135

   Send encrypted file links instead of email attachments

   Oct 2025

5. 5
   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

6. 6
   Friend NDA Generator▲208

   An NDA generator for you and your friend's secret

   2019

7. 7
   Trustbot for NDAs▲77

   Faster, better NDA handling for teams with free e-signing

   2019

8. 8
   Serenity Notes▲151

   End-to-end encrypted collaborative notes app

   2021

9. 9
   Blockusign▲93

   Secure Document Signing & Verification Powered by Blockchain

   2018

10. 10
    Mantle SAFEs▲145

    Issue & sign SAFEs for free. No DocuSign required.

    Apr 2026 · withmantle.com

11. 11
    Secure Send for Slack▲75

    Send files securely without leaving your Slack channel!

    2020

12. 12
    SafeNote 2.0▲102

    Encrypt and send files and notes which self-destruct.

    2019

13. 13
    OpenSign™: Open Source DocuSign & more▲109

    Enterprise-Level Document Signing Goes Open-Source

    2023

14. 14IM
    I made a free, ad-free and open source tool for sharing private notes▲124

    2021 · burnernote.com

15. 15
    Tresorit Send▲74

    Ultra-secure, end-to-end encrypted large file sharing.

    2018

16. 16
    End to End Encryption File Sharing▲90

    Securely share sensitive files

    2022

17. 17
    Enclosed▲143

    Send private and secure notes

    2024

18. 18SV
    Seal – Verifiable timestamp for your private ideas▲113

    2022 · docs.planet.ink

19. 19
    ySendit▲73

    Send data without limits

    2020

20. 20
    Blocknify▲71

    Sign sensitive documents without sacrificing your privacy.

    2018

21. 21
    BurnLink▲87

    Share encrypted files that are ephemeral

    Mar 2026 · burnlink.page

22. 22
    Compliance Locker▲3

    Seal sensitive docs before they leave the browser

    27d ago · compliancelocker.app

23. 23
    WiredSign.com▲36

    Send. Sign. Done. - Smart contracts. No legal headaches.

    2025

24. 24
    Kitedoc▲10

    Share, track, sign, and protect documents, from one link

    Feb 2026 · kitedoc.com

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