Commerce · alternatives · 2026

24 alternatives to Proof.ink

Proven immutable data stored on the Steem blockchain

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Proof.ink launched in 2019; newer entries below may have overtaken it.

1. 1
   Proofly▲7

   Verify originality. Track subscriptions. Stay secure.

   Nov 2025 · proofly.solutions · its alternatives →

2. 2
   Nifty Ink▲170

   Draw something and make it a NFT for less than 1 cent

   2021 · nifty.ink · its alternatives →

3. 3
   INK'A▲163

   Automatically ship branded goods to your community

   2017 · inka.io · its alternatives →

4. 4
   Stampd.io - A document blockchain stamping service▲32

   Use the public blockchains to timestamp your files with indelible proof. Create non-fungible tokens (NFT) in Cardano.

   2015 · stampd.io · its alternatives →

5. 5
   Woleet▲73

   Bitcoin-anchored proof that documents are authentic

   May 2026 · woleet.io · its alternatives →

6. 6
   Print Your Bitcoin paper Wallet▲77

   Generate crypto paper wallets with cool designs

   2021 · its alternatives →

7. 7
   Blocknify▲71

   Sign sensitive documents without sacrificing your privacy.

   2018 · its alternatives →

8. 8
   Claimby▲107

   Free legally-valid timestamps for your files, ideas & art.

   2018 · claimby.com · its alternatives →

9. 9
   Incipite▲2

   Proof that holds up without asking anyone to trust you.

   Aug 2026 · incipite.com · its alternatives →

10. 10
    DataTrails▲111

    Content verification & misuse protection for Dropbox files

    2023 · onid.co · its alternatives →

11. 11
    Reblo▲71

    Provides document immutability and security using blockchain

    2023 · reblo-services.com · its alternatives →

12. 12
    BlockScribe▲70

    Leave your mark on the Bitcoin or Ethereum blockchain

    2022 · blockscribe.net · its alternatives →

13. 13
    WORK.INK▲60

    Earn money and boost your social media by shortening links

    2022 · work.ink · its alternatives →

14. 14
    SBIX Certify▲13

    ✨ Instant legal proof-of-existence for any document.

    Dec 2025 · certify.sbix.io · its alternatives →

15. 15
    IOStamp.com▲1

    Stamp it before they steal it Blockchain proof

    Feb 2026 · iostamp.com · its alternatives →

16. 16
    Saferlayer▲27

    Protect ID scans with watermarks AI can’t erase easily

    Sep 2026 · saferlayer.com · its alternatives →

17. 17
    Copyright Registration - SecureAuthor▲20

    Protect & prove your creations with SecureAuthor

    2025 · secureauthor.com · its alternatives →

18. 18
    Proof of Existence▲6

    Have a document certified in the Bitcoin blockchain

    2015 · proofofexistence.com · its alternatives →

19. 19
    Proofmine▲6

    Timestamp & secure your ideas

    2025 · its alternatives →

20. 20
    Proofable API Service▲5

    Anchor your digital assets to the Blockchain of your choice

    2020 · its alternatives →

21. 21
    sygn.ink▲8

    Your Signature. Digitally Secure. Surprisingly Affordable.

    2025 · sygn.ink · its alternatives →

22. 22
    DocProof▲2

    Cryptographic timestamps for documents — no file storage

    Jul 2026 · docproof.app · its alternatives →

23. 23
    OriginSign▲11

    Sign your content. Prove it’s yours.

    Dec 2025 · originsign.com · its alternatives →

24. 24
    H3Tag▲8

    Own your Content

    Nov 2025 · 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 →