Work · alternatives · 2026

24 alternatives to STAMPD.IO

Use the Blockchain to timestamp files with indelible proof.

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

1. 1
   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 →

2. 2
   TimeSeal▲116

   Restoring digital trust, one blockchain timestamp at a time

   2023 · timeseal.com · its alternatives →

3. 3
   Stampd▲68

   A document blockchain stamping service

   2015 · stampd.io · its alternatives →

4. 4
   Frost▲200

   An open API for Blockchain timestamping

   2018 · its alternatives →

5. 5
   Claimby▲107

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

   2018 · claimby.com · its alternatives →

6. 6BT
   btproof - trusted timestamping on the Bitcoin blockchain▲75

   Find information, resources and relevant links for btproof.com. This domain may be for sale.

   2013 · btproof.com · its alternatives →

7. 7
   Time Ledger▲323

   Manage your time like you manage your money.

   Feb 2026 · sobo-link.vercel.app · its alternatives →

8. 8
   Stampery▲118

   Certify your emails using the blockchain

   2015 · stampery.com · its alternatives →

9. 9
   Blockpit 1.0▲91

   Keep track of your crypto portfolio & taxes in one place

   2019 · its alternatives →

10. 10
    WorkChain.io▲91

    Automated, instant payroll on the blockchain.

    2018 · workchain.io · its alternatives →

11. 11
    NoteChain▲109

    A beautiful note taking app running on Ethereum Blockchain

    2018 · its alternatives →

12. 12
    Proof Of Time Travel▲87

    Using blockchain to prove time travel

    2018 · its alternatives →

13. 13
    Stampery for iOS▲104

    Certify voice notes, photos or files using the Blockchain

    2015 · apps.apple.com · its alternatives →

14. 14
    Proof.ink▲100

    Proven immutable data stored on the Steem blockchain

    2019 · proof.ink · its alternatives →

15. 15
    TimeProof▲5

    Prove it existed. Permanently.

    Jan 2026 · its alternatives →

16. 16
    Chainkit from PencilDATA▲69

    Add blockchain integrity to your data and apps in 5 minutes

    2018 · its alternatives →

17. 17SV
    Seal – Verifiable timestamp for your private ideas▲113

    2022 · docs.planet.ink · its alternatives →

18. 18
    Cert0▲21

    Timestamp your creativity, protect your legacy

    2025 · i.cert0.com · its alternatives →

19. 19
    TxHash Blockchain as a Service▲120

    Cryptocurrency and smart contract event notifications

    2018 · its alternatives →

20. 20
    Crypto stamp▲7

    World first blockchain stamp by Austrian Post

    2019 · cryptostamp.com · its alternatives →

21. 21
    Blocky▲90

    An all-in-one cryptocurrency bot

    2018 · chainlabs.ai · its alternatives →

22. 22
    Late Confirmation▲71

    The top stories in blockchain, delivered daily from CoinDesk

    2018 · coindesk.com · its alternatives →

23. 23
    Lark▲117

    1st crypto app that correlates news to price in real time.

    2017 · its alternatives →

24. 24
    Blockpit.io▲95

    Easy crypto tax calculation with optimized results

    2018 · blockpit.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 →