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Life & fun · alternatives · 2026

PC

24 alternatives to PQC.club – Post-Quantum Cryptography Tools and Alternatives

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

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. PQC.club – Post-Quantum Cryptography Tools and Alternatives launched in 2024; newer entries below may have overtaken it.

  1. 1

    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 →

  2. 2
    QU3▲133

    Quantum-safe MCP servers for private, verifiable inference

    2025 · its alternatives →

  3. 3

    qrkey is a command-line tool for generating and recovering QR codes from files for offline private key backup. - Techwolf12/qrkey

    2025 · github.com · its alternatives →

  4. 4

    Find quantum-vulnerable crypto in your code

    Jul 2026 · quantakrypto.com · its alternatives →

  5. 5
    QLX▲12

    post quantum encryption suite

    2025 · its alternatives →

  6. 6

    Non-interactive PostgreSQL query tool. Contribute to soheilpro/pgcmd development by creating an account on GitHub.

    2019 · github.com · its alternatives →

  7. 7

    Post-Quantum Credential Management Made Easy

    2025 · accessvault.app · its alternatives →

  8. 8
    Qpher▲4

    Post-quantum encryption & signing — drop-in REST APIs

    Jun 2026 · qpher.ai · its alternatives →

  9. 9

    Post-Quantum Cryptography Test Kit

    Jul 2026 · github.com · its alternatives →

  10. 10
  11. 11

    I recently dipped my toes into bug bounty hunting and finding security flaws in web applications. As a friend of UNIX shells I was building a repertoire of command line tools to make and analyze HTTP requests. Fortunately there are already many suitable tools like curl, jq, different fuzzers and some really nice tools for specific tasks by Tom Hudson [1]. However, I disliked that the existing fuzzers were monoliths where I had no easy way of creating custom behavior or analyses. They commonly do a multitude of things: Create multiple requests using one or more wordlist, sending the request,…

    2024 · github.com · its alternatives →

  12. 12

    post-quantum-cryptography

    Jan 2026 · postquantumapps.com · its alternatives →

  13. 13

    Hey HN, I’m Ilias, 19, from Paris. I built Ellipticc Drive, an open-source cloud drive with true end-to-end encryption and post-quantum security, designed to be Dropbox-like in UX but with zero access to your data, even by the host. What’s unique: Free 10GB for every user, forever. Open-source frontend (audit or self-host if you want) Tech stack: Frontend: Next.js Crypto: WebCrypto (hashing) + Noble (core primitives) Encryption: XChaCha20-Poly1305 (file chunks) Key wrapping: Kyber (ML-KEM768) Signing: Ed25519 + Dilithium2 (ML-DSA65) Key derivation: Argon2id → Master Key → encrypts all…

    Oct 2025 · ellipticc.com · its alternatives →

  14. 14

    Secure your App or Web before Quantum attack stay compliant

    2025 · 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. 16DO

    I’ve developed a new public-key encryption scheme (DIAC) that uses multidimensional, high-precision complex keyspaces and a modular trapdoor function for ultra-high entropy and quantum resistance. The code, benchmarks, and research paper (PDF) are all open-source: https://osf.io/mvkcq/ Would love feedback, questions, or cryptanalysis!

    2025 · osf.io · its alternatives →

  17. 17

    Zero-trust PQC Encryption API

    Jun 2026 · quantacipher.com · its alternatives →

  18. 18

    Quantum Proof Collaboration Platform

    2024 · qsentinel.com · its alternatives →

  19. 19

    Professional-grade cryptographic tools for All.

    2025 · pycrypt.pyzit.com · its alternatives →

  20. 20

    Post-Quantum Data Fission:Sovereign security for the Y2Q era

    Apr 2026 · nanoshardguardian.com · its alternatives →

  21. 21

    Post-Quantum Cryptography & Decentralized Protocol

    Apr 2026 · armchain.org · its alternatives →

  22. 22

    Pythonic tool for orchestrating machine-learning/high performance/quantum-computing workflows in heterogeneous compute environments. - AgnostiqHQ/covalent

    2022 · github.com · its alternatives →

  23. 23

    Modern cryptography for PostgreSQL using libsodium. - michelp/pgsodium

    2022 · github.com · its alternatives →

  24. 24

    Check your quantum risk. Free. Live on-chain data.

    Jul 2026 · postquantumize.com · 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 →