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Products that do what CipherChronicle does

From Caesar to Enigma: 80+ classical ciphers in your browser

  1. 1

    Learn ciphers by breaking them

    May 2026 · cipherlock.me

  2. 2

    Open-source, shared memory for coding agents

    2025

  3. 3FI
  4. 4IM

    Introducing the 3D Printed Binary Enigma (10 Enigma) – the ultimate encryption and decryption device, no batteries required! Inspired by the iconic Enigma machines of WWII, this sleek and intuitive device lets you encode and decode messages “effortlessly”. Or how else are we going to send secure messages in the future?

    2024 · makerworld.com

  5. 5OC

    I’m building a Unicode reference where each symbol has its own dev-friendly page with all relevant encodings. Example: [https://fontgenerator.design/symbol/almost-equal-to](https://fontgenerator.design/symbol/almost-equal-to) Includes Unicode, HTML, CSS, JS, UTF-8/16 bytes, URL encoding, and usage examples. The same structure is used across thousands of symbols (math, arrows, currency, tech/UI, punctuation). Built because existing references are fragmented. Feedback welcome.

    Dec 2025 · fontgenerator.design

  6. 6EA

    I recently went on a long walk (to get newborn twins to nap) and ended up having a long discussion with ChatGPT in voice mode; asking it to explain how the Enigma machine worked and clarifying all the errors in my current understanding. I ended up going right back to basics and then subsequently spent ages failing to understand how it was cracked. Anyway, I built this in an attempt to recreate that arc for people (like me) who find Enigma intimidating: 13 stages, ~15 minutes, ending in a sandbox machine and the "no letter encrypts to itself" flaw that doomed it. Built with React + SVG +…

    May 2026 · enigma.rory.codes

  7. 7
    Enigma X171

    Your own encryption in any messenger

    2025

  8. 8

    Open-source alternative to Codex & Claude Code

    May 2026 · shiori.ai

  9. 9
    Locki103

    Encrypt/decrypt text directly where you type

    2025

  10. 10

    Notepad with AES encryption.

    2019

  11. 11

    You don't have to be a genius to understand crypto

    2023

  12. 12

    Simple & secure password manager for teams & individuals

    2018

  13. 13

    New layer of personal privacy

    2025

  14. 14AA

    Hello HN, we're CipherNomad, the research initiative behind this project. The Ariadne Protocol is our exploration of a different cryptographic model. The work began with an observation of primitives like the Lion transform, which use a static, hardcoded sequence of operations. This led us to ask: What if the cryptographic "program" wasn't a constant, but a dynamic, history-dependent variable? Our first step was a "Cryptographic Virtual Machine" that took an explicit list of operations (a "Path"). This worked, but required sharing the Path object—an explicit dependency that needed to be…

    2025 · codeberg.org

  15. 15US

    I built a demo of two Unicode steganography techniques, zero-width characters and homoglyph substitution, in the context of AI misalignment. The first is about the use of two invisible zero-width characters (ZWS and ZWNJ) to binary encode text. The second is much cooler. Most characters in the Latin and Cyrillic alphabets look nearly identical, but have different unicode. If you have text to encode and convert it into binary representation (1s and 0s), you could take plain english "carrier" text and for each 1 in the binary representation you could substitute the Cyrillic letter equivalent.…

    Apr 2026 · steganography.patrickvuscan.com

  16. 16A2

    I’ve been experimenting with structured logic as a way to frame search spaces — not in an academic way, just as a personal project. I wanted to know: what happens if you initialize a brute-force run with a simple equality like xy = x / y? Not as a filter, just as a logical ignition point. I used AES-256-CBC encrypted files with UUID passwords and tested against a 1 million UUID space. It cracked it in under 40 seconds. Then I scaled it to a 1 billion UUID range, and it still found the key without issue. This isn’t a crypto tool, and I’m not trying to solve any cryptographic problems.…

    2025 · github.com

  17. 17

    A modern playground for classical cryptography.

    Jan 2026

  18. 18SE

    Good morning HN! For a while now I have been toying with this idea and now finally have a working prototype. This project allows you to encode secret messages into ordinary looking text by using arithmetic coding with a probability model derived from an LLM. By encrypting the message and then decompressing the encrypted message using the arithmetic coder, you get output which looks just like randomly sampled output from the LLM. Except, it actually encodes your secret messages in the specific choices of tokens. By using authenticated encryption, only a user who knows the key can know that a…

    2025 · github.com

  19. 19CS

    Hi HN, I'm Dan Draper, founder of CipherStash. We've spent 5 years building per-value searchable encryption tech. We realized that encryption like this is incredibly powerful but the engineering required is generally not worth the effort. So we built a platform and opensource SDK to take the cry out of cryptography :) CipherStash Stack is: * A searchable encryption SDK for TS and Postgres * Fast, key management with Zerokms (backed by HSM) * A transparent SQL proxy * Auth library and OIDC federation service * Skills for data security Integrations include Prisma Next, Drizzle, Auth0, Clerk…

    May 2026 · cipherstash.com

  20. 20IE

    2025 · enigmasimulator.com

  21. 21

    Let's see if you're smart enough to crack the codes!

    Mar 2026

  22. 22GC

    As I started to use Claude Code to do more random tasks I realized I could basically build any CLI tool and it would use it. So I built one that controls the browser and open-sourced it. It should work with Codex or any other CLI-based agent! I have a long term idea where the models are all local and then the tool is privacy preserving because it's easy to remove PII from text, but I'd definitely not recommend using this for anything important just yet. You'll need a Gemini key until I (or someone else) figure out how to distill a local version out of that part of the pipeline. Github link:…

    2025 · cli-agents.click

  23. 23ME

    It's similar to pastebin, but everything is encrypted/decrypted client-side using bip39 mnemonic phrases. Instead of sharing a deeplink to share a file, you can share the mnemonic.

    2024 · github.com

  24. 24

    La guía crypto más completa en español

    Feb 2026

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