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CLUSTER CLASSICAL-CIPHERS-CRYPTOGRAPHY · 13 ENTRIES · EARLIEST ENTRY 2018-05-25

Interactive cryptography learning apps

This cluster consists of interactive web apps and e-learning tools that visualize classical and modern ciphers, let users encrypt/decrypt, and practice cryptanalysis step by step. The cluster's dated history is too thin to read a shape from—only one dated entry exists before the index start, and three members have no source date. Traction leaders are encription-simulation, cryptolab, and CrypTool 1, each showing 0 stars as an activity signal.

Entry timeline

ENTRY TIMELINE

MAY 2018: 1JAN 2022: 1FEB 2026: 1MAR 2026: 1APR 2026: 1AUG 2026: 4SEP 2026: 2OCT 2026: 2
MAY 2018OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 2 hand-coded · 11 unlabelled

Operator · 6 hobby · 4 open source · 3 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 13 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01encription-simulation0★13 days—hobbyInteractive web app that demonstrates classical ciphers, letting users encrypt, decrypt, and practice breaking messages step by step.
  2. 02VEXIGMA0★26 days—hobbyDesktop cipher laboratory that encrypts and decrypts text with configurable rotor-machine settings and multiple character sets.
  3. 03cryptolab0★27 days—Interactive app for learning cryptography and cryptanalysis with classical ciphers, frequency analysis, challenges, and modern crypto demonstrations.
  4. 04cipherlab0★11 dayslivehobbyBrowser-based cryptography tool that lets users encrypt and decrypt text using classic ciphers such as Caesar, Vigenère, and Atbash.
  5. 05Gpg Frontend0★2 moliveopen sourceCross-platform encryption tool that manages OpenPGP keys and signs or encrypts files and text using switchable cryptographic backends.
  6. 06Cipher-Suite0★3 molivehobbyWeb app that lets users encrypt and decrypt text with classic ciphers and syncs encryption history across devices through a cloud account.
  7. 07CryptoKeyLab3★2 mo—Web platform offering cryptographic operations as a hosted service with an offline browser playground supporting a large set of encryption and hashing algorithms.
  8. 08CrypTool 10★unknownlivehand-codedopen sourceE-learning application that visualizes and lets users experiment with classical and modern cryptographic algorithms for cryptography education.
  9. 09Cipher0★6 yrabandonedlivehand-codedopen sourceDesktop application that encodes and decodes text using classic ciphers, encodings, and hashing functions for fun.
  10. 10python2-cryptography0★2 yrabandonedliveopen sourceLibrary providing cryptographic recipes and primitives to Python developers, offering encryption and hashing functions.
  11. 11subterfuge0★unknownlivehobbyCross-platform application that splits and reconstructs cryptographic secrets using Shamir's Secret Sharing via the SLIP39 mnemonic standard.
  12. 12Enigma Machine0★unknownlivehobbyWeb tool that simulates the historical Enigma cipher machine for encrypting and decrypting text messages.
  13. 13MiniRSA0★unknownliveWeb tool that performs RSA encryption and decryption for educational or practical use.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.