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Commerce · alternatives · 2026

24 alternatives to ARMchain

Post-Quantum Cryptography & Decentralized Protocol

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    QU3▲133

    Quantum-safe MCP servers for private, verifiable inference

    2025 · its alternatives →

  2. 2

    filippo.io/mlkem768 is a pure-Go implementation of the post-quantum key exchange mechanism ML-KEM-768 optimized for correctness and readability.

    2024 · words.filippo.io · its alternatives →

  3. 3

    Neptune is a quantum-safe layer 1 blockchain combining zk-STARKs and PoW consensus. Private by default, programmable, and built for global scale

    2014 · neptune.io · its alternatives →

  4. 4

    Various ipython notebooks. Contribute to julienr/ipynb_playground development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  5. 5

    Hey HN. I'm Colton (YC S21, ex-Acorns), one of the founders of Postquant Labs. My cofounder Richard is a cryptographer out of Draper Labs and DARPA. We're building Quip.Network, the first distributed quantum compute network. We just opened our testnet and wanted to share it here. The basic problem: quantum hardware is here and already competitive on certain optimization problems, but for most people, there's no way to access it. The machines cost millions and the hardware and research are gated by the companies who own them. Also, quantum providers regularly have machines sitting idle…

    Apr 2026 · quip.network · its alternatives →

  6. 6

    Post - Quantum Blockchain (ML-DSA-65)

    Jul 2026 · quantum-lattice.futuristicai.co.za · its alternatives →

  7. 7

    Open, machine-readable encodings of the world's rules, starting with tax and benefit policy. Cited, time-aware, and executable, so anyone can run, audit, or reform them.

    2019 · axiom.org · its alternatives →

  8. 8

    Fully quantum-secure on-chain applications.

    Jan 2026 · getlea.org · its alternatives →

  9. 9

    Open-source protocol for a decentralized, user-owned web

    2024 · pubky.org · its alternatives →

  10. 10

    Immutable, scalable, and easy to use ledger service. - hoophq/sequence

    2020 · github.com · its alternatives →

  11. 11
  12. 12CD
  13. 13
    Quantum▲14

    The True MultiChain Web3 Wallet

    2023 · qat.xyz · its alternatives →

  14. 14

    Maximally decentralized cryptocurrency. Contribute to PaulGustafson/dcc development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  15. 15TP

    Hi HN, we are the developers from Tuta (formerly Tutanota), the German end-to-end encrypted email provider, and we recently released the world's first post-quantum encryption for email. We have included a full technical write-up of the cryptography involved in these changes and we have released it for open public review. This document specifies TutaCrypt, a protocol designed for hybrid email encryption in Tuta Mail. The protocol combines a classical Elliptic-Curve-Diffie-Hellman key exchange with a post-quantum KEM. The goal is to replace the usage of RSA in Tuta Mail. In the remainder of…

    2024 · tuta.com · its alternatives →

  16. 16
    Axra▲79

    AI-native global banking on stablecoins for emerging markets

    Mar 2026 · useaxra.com · its alternatives →

  17. 17

    Platform to launch and scale blockchain applications

    2020 · alleochain.io · its alternatives →

  18. 18PC

    A collection of the best Post-Quantum Cryptography Tools and Alternatives to switch from software using legacy encryption.

    2024 · pqc.club · its alternatives →

  19. 19

    Qbitcoin quantum-resistant blockchain

    2025 · github.com · its alternatives →

  20. 20
    SORA▲7

    AI-powered blockchain-based drive diagnostics quantum safety

    2025 · junkhdd.com · its alternatives →

  21. 21SC

    2016 · dev.blockcypher.com · its alternatives →

  22. 22

    Go Quantum-Safe Before Quantum Goes Live

    2025 · qu-secure.net · its alternatives →

  23. 23

    Secure your App or Web before Quantum attack stay compliant

    2025 · its alternatives →

  24. 24EE

    Hi HN, we have recently completed a research project on how to encrypt emails with post-quantum secure algorithms as well as Forward Secrecy. We'd love to hear your feedback and discuss technical issues. The paper can be found here: https://eprint.iacr.org/2021/875

    2021 · 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 →