Tool · Language learning
🔤 JLPT N5 Kanji Drill
Simple kanji practice page for JLPT N5 learners. Designed for quick drills, browsing characters and testing yourself.
AI-assisted • Claude
What is this?
This repo is a small playground for tiny web apps and visual experiments. Most of them were created with the help of different AI models (I often use Claude and Gemini), plus some manual tweaking.
- Each idea lives in its own folder.
- Everything is static – just HTML, CSS and JavaScript.
- Use the tag filters on the right to find tools by topic or model.
⚙️
Note: All tools here are AI-assisted. Code was generated and edited using
language models, then adjusted by hand where needed.
Tool · Simulation
🦅 Boids + Predator–Prey
Interactive flocking simulation with predators, reproduction and starvation. Tune parameters live and watch the ecosystem evolve.
AI-assisted • Claude
Tool · Productivity
📓 LocalNotes – Notion-like
Local, Notion-inspired editor with blocks, slash commands, multiple choice questions, math support and light/dark theme.
AI-assisted • Claude
Tool · Japanese text
🖍️ JP Text Highlighter – Furigana & Romaji
Japanese text helper for studying lyrics and sentences: switch between kanji + furigana and romaji, highlight segments in different colors, and save your highlights as JSON.
AI-assisted • Claude
Tool · Spreadsheet
📊 SheetClone – Mini Spreadsheet
Small spreadsheet-like app with formulas, formatting, multiple sheets and charts. Useful for experimenting with grid logic and data manipulation directly in the browser.
AI-assisted • Gemini
Experiment · Arcade Game
🌒 Lunar Miner
A 2D lunar mining arcade experiment made with p5.js: dig through low-gravity terrain, collect crystals, avoid collapsing tiles, and survive as long as possible.
AI-assisted · Claude
Experiment · 3D Visuals
✨ Drone Light Show
An interactive 3D drone light show built with Babylon.js: dynamic formations, adjustable drone count, animation speed, and cinematic camera paths.
AI-assisted · Claude
Tool · Game
⚔️ MicroRTS game
A tiny browser-based real-time strategy prototype inspired by Age of Empires — with villagers, resources, buildings, and training queues.
AI-assisted • Claude
Experiment · WebGPU Simulation
🌌 N-Body Gravity Simulation
N-body gravitational simulation with a WebGPU compute shader (tiled shared-memory) and a WebGL2 fallback. Real-time controls, multiple scenarios, and lots of particles.
AI-assisted • Claude
Tool · RTS Space Battle
🛸 VOID COMMAND game
2D RTS space battle sandbox. Build your fleets, tweak ship types and AI behavior, then watch massive battles play out with replays, batch simulations and training runs.
AI-assisted · Claude
Experiment · WebGPU Visuals
🎆 Fireworks Show
High-density WebGPU fireworks with multiple effect types, auto-show mode, manual type selection, and deep control over color, scene and particle detail.
AI-assisted · Claude
Experiment · Gravitational Lensing
🕳️ Black Hole Lensing
Real-time WebGPU black hole renderer with Schwarzschild-inspired ray marching, accretion disk, Doppler effects, starfield, nebula and cinematic camera controls.
AI-assisted · Claude