I loved GeoCities back in Japan in the 1990s, so was thrilled to discover NeoCities. I’m using this site mostly for educational tools and JavaScript experiments that I make for my schools and classes, and for other teachers and students.
Everything here is free to use. Please don’t hesitate to email me at chris@chrisspackman.com with bug reports, suggestions for improvements, or requests for other teacher-tool pages.
2026-10-06: Updated the Bingo Generator to version 0.3.0. Type any number of sheets from 1 to 200, or fill the word list in two clicks with a ready-made set: numbers, number words, the alphabet, hiragana, katakana, months, colors, or shapes. (Remember to press either Replace list or Add to list.)
2026-10-04: New: the Quiz Game Board Builder. Type your own categories, questions, and answers (or paste them from a spreadsheet), and it builds a quiz-show style review game: one file that works offline and that you project in class. Teams pick a square, you show the question and then the answer, and the board keeps score for up to ten teams. Questions and answers can have pictures. Optional bonus squares (teams bet points), points lost for wrong answers, and an answer timer. Each class can keep its own saved game with its own teams and scores, and you can save a game in progress to a file to finish it another day or on another computer. Choose from eleven color themes or pick your own colors; every theme is checked for readable contrast (WCAG 2.1 AA). To edit a game later, open the saved file in the builder again.
2026-10-04: Updated 2076: Sengoku America to version 0.9 beta 21. A game now lasts 12 years, or 16 in the new Epic mode, and the President serves a four-year term, so every election counts. Rivals can push back between elections with a coup or an impeachment vote. Many, many other changes as well.
2026-10-04: Updated Solar Expats: Beyond The Cradle to version 1.24.0. New Tourist mode: explore the solar system with no rival factions, no raiders and no race to win, starting with one ship of each type. Many, many other changes as well.
2026-10-02 Updated Solar Expats: Beyond The Cradle to version 1.21.0.
Browser-based tools for teachers and students — especially for reading, phonics, and English Learner support. They run entirely in your browser, with nothing to install.
Tools for making classroom materials — and web pages — easier for everyone to read and use.
Interactive demos that explain how ciphers work — and how they get broken — from pen-and-paper classics to the math behind modern key exchange.
Point-and-click helpers for some powerful but fiddly tools.
fortune program.
Age Verification
A proof-of-concept: can you prove your age using historical knowledge?
Mandated Reporter: My Conversations with Nnedi, a short story set in the near future, dealing with GenAI agents in education.
Disclaimer: these pages are educational demos provided as-is, with no warranty of any kind. The author is not responsible for any consequences arising from their use.
Send comments and bug reports to chris@chrisspackman.com.
Last updated: 2026-08-15
This page is Copyright © 2024 – 2026 Chris Spackman.
This web site developed entirely on GNU/Linux.
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