こんだて決まらん。
Tonight's Dinner Decider

A quick-decision meal suggestion tool that frees you from "what to cook tonight." Pick available ingredients or seasonings for instant dinner ideas, featuring history management to prevent repeats and direct recipe search links.
🛠 Tech Stack: JavaScript, HTML5, CSS3, PWA

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KineText
Realtime Kinetic Typography Subtitles

Transforms spoken voice into dynamic motion-graphics subtitles in real time. Designed for streamers with OBS integration, ultra-low latency WebRTC sync, and transparent background support.
🛠 Tech Stack: React, TypeScript, Web Speech API, WebRTC, Tailwind CSS

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Bicycle Gear Ratio Calculator

A simulation tool for calculating speed, cadence, and skid points across various bicycle gear setups (Road, Minivelo, MTB). Includes interactive visual animations.
Primary Languages: JavaScript, HTML, CSS, PHP

Guide & Usage Launch App

Japanese Test
Vertical Text Formatter

Formats horizontal Japanese text into a traditional vertical layout styled like Japanese school exam sheets. Supports furigana (ruby characters) and customizable answer boxes. PC recommended.
Primary Languages: PHP, JavaScript, HTML, CSS

Tool Guide (JP) Launch Tool

Progress & Schedule
Gantt Scheduler

A web-based Gantt chart application built with Next.js and TypeScript. Features intuitive task drag-and-drop adjustments and interactive SVG dependency connecting lines. Designed to be feature-rich yet clutter-free.
🛠 Tech Stack: Next.js, TypeScript, Tailwind CSS, Zustand

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Illustration Asset Site
Illusten

A free downloadable asset library featuring warm and gentle illustration artwork.
Languages: TypeScript, JavaScript, HTML, CSS, PHP
Frameworks & Libraries: Astro, Tailwind CSS

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Kids' Playground

Simple and cheerful animations that respond dynamically to clicks and taps. A lightweight digital playground designed for young kids.
Primary Languages: JavaScript, HTML, CSS, PHP

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