Alternatives

Products that do what Image Sign does

Secure your digital images with cryptographic signatures

1. 1
   Safe Pixel▲73

   Keep your images in a secure vault and share securely.

   2019

2. 2SV
   Seal – Verifiable timestamp for your private ideas▲113

   2022 · docs.planet.ink

3. 3
   Proofmarked▲154

   Cybersecurity for everyone. Just in time for Black Friday!

   2023

4. 4
   OriginSign▲11

   Sign your content. Prove it’s yours.

   Dec 2025 · originsign.com

5. 5
   TruePic▲95

   Image and video authenticity certification

   2017

6. 6
   Blockusign▲93

   Secure Document Signing & Verification Powered by Blockchain

   2018

7. 7
   WaveSign▲2

   Tamper-evident file authentication for images and PDFs

   Mar 2026 · wave-sign.com

8. 8EA
   Encrypt and hide files inside images▲208

   2022 · github.com

9. 9
   Do Not Be Square▲164

   Record a free unique animated email signature in 3 steps

   2020

10. 10
    Arcane Photos▲201

    Like Google Photos, but encrypted and decentralized.

    2019

11. 11
    Watermark Image▲80

    Watermark photos.

    2019

12. 12
    OpenSign™: Open Source DocuSign & more▲109

    Enterprise-Level Document Signing Goes Open-Source

    2023

13. 13
    Blocknify▲71

    Sign sensitive documents without sacrificing your privacy.

    2018

14. 14
    Proof.show▲1

    A camera that generates proof your photo is real

    Mar 2026 · proof.show

15. 15
    PhotoProof AI▲4

    Know whether an image can be trusted

    Jun 2026 · photoproof.co

16. 16
    Content Proof▲1

    Prove your content is real with Gmail-verified signatures

    2025

17. 17
    SealZero▲6

    Zero-knowledge proofs for authentic, privacy-safe images

    Jan 2026 · sealzero.dev

18. 18SI
    Simple Image encrypt/decrypt using Python▲30

    2021 · github.com

19. 19
    E-signature tool with AI Identity Checks▲1

    Contracts signed by ID-verified individuals.

    4d ago · signsecure.org

20. 20
    Signer Authority▲5

    Secure e-signatures with cryptographic proof.

    Jul 2026 · signerauthority.com

21. 21
    ProofMi▲2

    Photos you can prove are real

    Jan 2026 · proofmi.xyz

22. 22
    Apex Verify

    Cryptographically prove your content is real

    Apr 2026 · apps.apple.com

23. 23
    Image to Pdf Converter▲3

    Detailed fast and unique pdf converter

    Nov 2025 · apps.apple.com

24. 24
    HashCam▲8

    AI can fake content. HashCam proves what’s real.

    Mar 2026 · hashcam.io

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