Alternatives

Products that do what QLX does

post quantum encryption suite

1. 1
   QU3▲133

   Quantum-safe MCP servers for private, verifiable inference

   2025

2. 2FI
   filippo.io/mlkem768 – Post-Quantum Cryptography for the Go Ecosystem▲315

   2024 · words.filippo.io

3. 3QJ
   Quantum JavaScript▲210

   2020 · quantumjavascript.app

4. 4PC
   PQC.club – Post-Quantum Cryptography Tools and Alternatives▲6

   2024 · pqc.club

5. 5HP
   Hypergolix, “programmable Dropbox” with client-side encryption▲130

   2017 · pyhgx.readthedocs.io

6. 6
   AroCrypt v0.10.0▲99

   Now with KYBER quantum safe keys + AES GCM encryption

   Dec 2025 · arocrypt.vercel.app

7. 7RV
   Rqlite v4.0 – With node-to-node encryption▲101

   2017 · github.com

8. 8
   Quantum Algorithm as a Service (Q3AS)▲102

   Q3AS, deployment & execution of quantum algorithms by Aqora

   2024

9. 9
   QuantaCipher▲2

   Zero-trust PQC Encryption API

   Jun 2026 · quantacipher.com

10. 10
    Quantum-Safe Security Platform▲7

    Go Quantum-Safe Before Quantum Goes Live

    Sep 2025

11. 11
    postquantumapps▲2

    post-quantum-cryptography

    Jan 2026 · postquantumapps.com

12. 12
    Qpher▲4

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

    Jun 2026 · qpher.ai

13. 13TP
    TutaCrypt, post-quantum encryption protocols for securing emails [pdf]▲15

    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

14. 14
    QNSP — Quantum-Native Security Platform▲5

    Post-Quantum Security for AI, Data, and Critical Systems.

    Apr 2026

15. 15EE
    Encrypted emails based on Signal protocol with post-quantum algorithms▲10

    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

16. 16FE
    Forward Email – Open-Source Quantum Safe Encrypted Email Service▲35

    2023 · forwardemail.net

17. 17
    quantakrypto pqc-tools▲3

    Find quantum-vulnerable crypto in your code

    Jul 2026 · quantakrypto.com

18. 18MQ
    Moochacha, quantum-safe file encryption (analyzed by Frama-C)▲75

    2023 · codeberg.org

19. 19DO
    DIAC – Open-Source Quantum-Resistant Cryptosystem▲5

    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

20. 20
    QuantumAPI

    The European platform for post-quantum encryption & identity

    Mar 2026 · quantumapi.eu

21. 21
    Quantum-Lattice▲3

    Post - Quantum Blockchain (ML-DSA-65)

    Jul 2026 · quantum-lattice.futuristicai.co.za

22. 22
    QNSI by Heossi▲2

    Full-stack Post-Quantum Security Infrastructure

    Jul 2026 · qnsi.heossi.com

23. 23
    postquantumize.com▲5

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

    Jul 2026 · postquantumize.com

24. 24
    QSecureX▲2

    Offline-first encryption vault. No cloud. No subscriptions

    Dec 2025 · qsecurex.space

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