I built a site with 150+ browser-only dev tools (Astro + Vue 3 + TypeScript) — here's how it's put together

Torinoa Tools is a solo side project featuring 152 developer utilities, including JSON formatting, Base64 conversion, and AES encryption. Built with Astro, Vue 3, and TypeScript, the static site operates entirely client-side, ensuring input never leaves the browser. It is bilingual in Japanese and English via Astro Content Collections and available as a Docker image. The project highlights specific implementation details, such as a Web Crypto encryption tool, a VLSM subnetting algorithm, and a CSS chunk architecture fix.