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Dev tools · alternatives · 2026

24 alternatives to zkPaper

Untraceable Document Editor with Proof of Authorship

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. zkPaper launched in 2024; newer entries below may have overtaken it.

  1. 1

    Hi! I made this as a hackathon project, the result is really cool and works very well. All you need to do is connect with your Metamask wallet and start creating documents. It also has proof of autorship, so we know if you wrote the document, or you just copy/pasted from chatgpt. This could be useful for schools or something. Let me know what you think. Thanks!

    2024 · zkpaper.com · its alternatives →

  2. 2
    Papermark▲794

    Papermark is a secure data room platform for dealmakers, founders, and finance teams. It lets you organize documents, set granular permissions, add NDA gating and watermarking, and track page-level analytics to see what drives decisions. Teams use it for M&A, fundraising, due

    2023 · papermark.com · its alternatives →

  3. 3
    LeaksID▲316

    Enrich private docs with dynamic invisible anti-leak marks

    2021 · leaksid.com · its alternatives →

  4. 4
    Paper.xyz▲192

    NFT checkout with credit cards & cross-chain crypto

    2022 · its alternatives →

  5. 5GA

    A secure, private productivity suite.

    2018 · graphitedocs.com · its alternatives →

  6. 6

    Online journal encrypted with a cipher

    2015 · bitjournal.io · its alternatives →

  7. 7

    Collaborative editor with end-to-end encryption.

    2017 · standardnotes.org · its alternatives →

  8. 8
    NOCBY▲54

    zkp steganography data privacy data security

    2025 · its alternatives →

  9. 9
    Paper▲111

    🚀 An offline note taking app with "networkless" sharing

    2019 · paperapp.vercel.app · its alternatives →

  10. 10

    Edit docs real-time with top-notch security

    2024 · greaterpaper.com · its alternatives →

  11. 11

    Notepad with AES encryption.

    2019 · github.com · its alternatives →

  12. 12

    Hi HN, We (myself, Adhyyan1252 and yush_g) are undergrad students that hacked out this side project last month during Hack Lodge[1] (the ideas and many of the underlying circuits for which came from the 0xPARC community[2])! We’re extremely excited to share this new primitive. Besides the technical challenges building this project that folks here would find interesting (fixing the ZK proof compiler, modifying nodeJS V8 params etc.), we think this is a very novel use case for ZK tech, and ECDSA inside ZK-SNARKs is a starting point that unlocks many other ideas! :D A summarized version of our…

    2022 · github.com · its alternatives →

  13. 13

    Free Intro course on cryptography available for programmers

    2014 · crypto101.io · its alternatives →

  14. 14

    CLI Todo app for hackers

    2015 · github.com · its alternatives →

  15. 15NA

    Express yourself with freedom — no spying, no tracking, only private notes. Unlike Evernote and other note apps, your data is yours alone.

    2021 · notesnook.com · its alternatives →

  16. 16

    Cryptocurrency Trading Game

    2019 · its alternatives →

  17. 17

    A command-line journal that is distributed and encrypted, making it easy to jot notes :notebook: - GitHub - schollz/gojot: A command-line journal that is distributed and encrypted, making it easy to jot notes

    2016 · github.com · its alternatives →

  18. 18

    Algorithmically generated summaries of must-read crypto news

    2019 · stackbrief.com · its alternatives →

  19. 19

    Make AI content undetectable by AI detection tools

    2023 · stealthwriter.ai · its alternatives →

  20. 20

    Manager for all your boring papers and documents at home

    2023 · its alternatives →

  21. 21

    Hi HN! We’re Marc and Iuliia from Papermark (https://papermark.io). We're building an open-source, modern document sharing platform with real-time engagement analytics and 100% customization. It all started as a tweet [1] and led to our launch on Product Hunt [2] last month. We crossed over 1000 stars and over 10 contributors on GitHub (https://github.com/mfts/papermark). Incumbents, like DocSend, founded in the early 2010s have been acquired already and just don't innovate anymore. Their main priority is enterprise clients. As founders and developers ourselves…

    2023 · papermark.io · its alternatives →

  22. 22

    A simple paper backup tool for GnuPG or SSH keys. Contribute to ooguz/papyrus development by creating an account on GitHub.

    2023 · github.com · its alternatives →

  23. 23

    Fast. Modern. Securing Google Workspace Collaboration.

    2022 · garblecloud.com · its alternatives →

  24. 24IA

    So I made this: http://userscripts.org/scripts/show/185221 Feel free to use/adapt/modify as you please.

    2013 · its alternatives →

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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 →