Growth · alternatives · 2026

24 alternatives to Mailwitness

Radically simple digital signatures

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Mailwitness launched in 2022; newer entries below may have overtaken it.

1. 1MD
   Mailwitness – Digital Signatures over Email▲17

   Hi HN, I'm Marek Dopiera and I wanted to share the digital signature solution which I made with my software house. Your feedback would be much appreciated. We've just launched it - it's a service for signing documents over e-mail - https://mailwitness.com. It still has some rough edges, but hopefully it is useful already. To sign a PDF with somebody, you e-mail them the PDF and put [email protected] in CC. If they agree, they need to forward it to [email protected]. When they do, you all get your document signed. You can generate PDFs from e-mail, too for convenience. We made…

   2022 · mailwitness.com · its alternatives →

2. 2
   Just sign PDF▲82

   Sign your PDF locally without uploading it to any server

   2023 · its alternatives →

3. 3
   Fill▲84

   The smart way to fill, send, sign & store PDF's

   2019 · its alternatives →

4. 4
   Papersign▲166

   Sent, signed, sorted - document signing simplified

   2023 · its alternatives →

5. 5
   Sign and Send▲154

   Sign a document online and have it physically sent

   2016 · its alternatives →

6. 6
   Etch E-Sign Free▲90

   Simple, intuitive and binding e-signatures, absolutely free

   2021 · its alternatives →

7. 7
   Sign and Return▲119

   Free PDF filling and signing over email.

   2016 · its alternatives →

8. 8
   open-pdf-sign▲105

   Open-source tool for digitally signing PDFs

   2022 · its alternatives →

9. 9FP
   Free PDF signing over email▲16

   2016 · signandreturn.com · its alternatives →

10. 10
    OpenSign™: Open Source DocuSign & more▲109

    Enterprise-Level Document Signing Goes Open-Source

    2023 · its alternatives →

11. 11
    Online Signature Maker▲109

    Create a free downloadable electronic signature

    2019 · its alternatives →

12. 12
    Add Your Signature▲3

    Drop a PDF, sign it, done. All in your browser.

    May 2026 · addyoursignature.com · its alternatives →

13. 13
    UsignDoc▲92

    Simplify e-signing, secure your docs

    2024 · its alternatives →

14. 14
    Quick PDF Sign▲2

    Sign PDFs free — no uploads, no account, 100% private

    Jun 2026 · quickpdfsign.com · its alternatives →

15. 15
    Online Signature Generator▲2

    Create digital Signatures and sign PDFs in seconds

    May 2026 · online-unterschriftgenerator.de · its alternatives →

16. 16
    Sign PDF. Add real handwritten signature▲6

    The only PDF signing tool for adding real signature to PDF

    Jul 2026 · sign-pdf.online · its alternatives →

17. 17
    AcceptSignature.com▲7

    Digital PDF signature software

    2022 · its alternatives →

18. 18
    SignPDF.fit▲5

    Sign a PDF in seconds — no account needed

    Jan 2026 · pdf.fit · its alternatives →

19. 19
    Sign PDF & Signature Maker▲6

    Sign documents in seconds — right from your phone

    2025 · apps.apple.com · its alternatives →

20. 20
    Handwritten Signature Generator▲77

    Create a free animated handwritten signature for your emails

    2023 · its alternatives →

21. 21SA
    Sign a document online and have it physically sent▲9

    2016 · signandsend.org · its alternatives →

22. 22
    PDF Pencil - iOS App▲64

    Upgrade your finger into a stylus and device into a scanner.

    2019 · its alternatives →

23. 23
    http://digitaldocusign.co.uk/▲1

    Sign PDF documents in seconds, for free

    Aug 2026 · digitaldocusign.co.uk · its alternatives →

24. 24
    PDF Signify▲18

    Sign PDFs easily with a digital certificate multiple times

    2024 · 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 →