Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. "Have I Been Pwned” with homomorphic encryption launched in 2023; newer entries below may have overtaken it.

1. 1
   ';--have i been pwned?▲273

   Check if your account has been compromised in a data breach

   2014 · haveibeenpwned.com · its alternatives →

2. 2RW
   Read Wikipedia privately using homomorphic encryption▲331

   Hi, creator here. This is a demo of our recent work presented at Oakland (IEEE S&P): https://eprint.iacr.org/2022/368. The server and client code are written in Rust and available here: https://github.com/menonsamir/spiral-rs. The general aim of our work is to show that homomorphic encryption is practical today for real-world applications. The server we use to serve this costs $35/month! A quick overview: the client uses homomorphic encryption to encrypt the article number that they would like to retrieve. The server processes the query and…

   2022 · spiralwiki.com · its alternatives →

3. 3
   Hacksy by Decoded▲175

   Check if your data has been leaked & get a better password

   2017 · its alternatives →

4. 4
   Hacked - The Problem with Passwords▲65

   Human stories to explain complex security problems

   2015 · soundcloud.com · its alternatives →

5. 5
   Re/code Decode - Y Combinator's Sam Altman▲92

   and the internet of things and Google

   2015 · serve.castfire.com · its alternatives →

6. 6DH
   Distributed Homomorphic Encryption Adder (Weekend Project)▲104

   2013 · 9ac345a5509a.github.io · its alternatives →

7. 7
   Have I Been Pwned donations page is awesome▲47

   Support Have I Been Pwned through a donation. Your contribution helps fund breach data research, infrastructure, and ongoing development.

   2019 · haveibeenpwned.com · its alternatives →

8. 8
   NuFHE: A GPU implementation of fully homomorphic encryption in Python▲8

   NuCypher fully homomorphic encryption (NuFHE) library implemented in Python - nucypher/nufhe

   2018 · github.com · its alternatives →

9. 9
   PyBV – A Python Implementation of the BV Homomorphic Encryption Scheme▲9

   DEPRECATED- see https://github.com/OpenMined/OpenMined or https://github.com/OpenMined/PySyft - iamtrask/PyBV

   2017 · github.com · its alternatives →

10. 10
    Building an End-to-End Encrypted Shazam with Homomorphic Encryption▲59

    A tutorial on how to code a privacy-preserving version of Shazam using Zama Concrete ML.

    2024 · zama.ai · its alternatives →

11. 11
    An interactive tutorial on symmetric encryption▲5

    symmetric encryption, speck, block modes, brute-force, nonce reuse

    2022 · easylang.online · its alternatives →

12. 12FG
    Freenet Ghost Keys: Anonymous, Verifiable Identities▲6

    2024 · freenet.org · its alternatives →

13. 13
    LightPHE: Lightweight Partially Homomorphic Encryption for Python▲6

    Homomorphic encryption enables computations to be performed directly on encrypted data without requiring access to the private key. This allows data to be securely stored in the cloud while still being processed using the cloud’s computational power. Meanwhile, the cloud remains unaware of the actual data it is handling. Although fully homomorphic encryption has become available in recent years, when considering performance trade-offs, partially homomorphic encryption proves to be a more efficient and practical choice. It is significantly faster, requires fewer computational resources, and…

    2025 · github.com · its alternatives →

14. 14BS
    Breaking Substitution Ciphers with Markov Chains▲9

    2020 · daniellowengrub.com · its alternatives →

15. 15
    Secure end-to-end client sessions and API calls using crypto key pairs▲9

    Hello. I made this project as an experiment in using key cryptography for user identity in a client server model, and for some future peer to peer projects that I am working on. I am looking for feedback, please let me know what you think. Also, Merry Christmas to HN! :-)

    2022 · github.com · its alternatives →

16. 16
    6-min Intro to End-to-End Encryption▲27

    How homomorphic encryption will change privacy online.

    2021 · zama.org · its alternatives →

17. 17NG
    NSA-grade encryption and anonymization for health and financial data▲9

    2018 · nukleosome.com · its alternatives →

18. 18
    RSA encryption explained with demo in Google Colab▲5

    2020 · colab.research.google.com · its alternatives →

19. 19SI
    SecureSend.io, two-factor encrypted messages▲5

    2015 · securesend.io · its alternatives →

20. 20
    crype – diffable/syncable encryption for files or shell pipes▲5

    2014 · code.ivysaur.me · its alternatives →

21. 21CA
    Cheshire: a CryptoKitties developer sandbox▲7

    2018 · medium.com · its alternatives →

22. 22AE
    Algebraic — Effortless macOS file encryption, integrated with Finder.▲7

    2022 · algebraic.cc · its alternatives →

23. 23SP
    Side project turned startup - Online Privacy via Client-side encryption▲5

    2011 · socialfortress.com · its alternatives →

24. 24EC
    Encrypted Credit Card Approval Using Homomorphic Encryption▲10

    2024 · huggingface.co · 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 →