About

I'm QCSunny — a developer who writes about web development, tooling and the small utilities that make everyday computing easier. This site has two halves: ablog and a growing set of free online tools.

The tools — scientific calculator, unit converters, finance calculators, QR code generator, password/UUID generators and more — are all hand-written with zero tracking script weight. Every calculation runs entirely in your browser: nothing you type is uploaded, stored or logged, and the pages keep working offline once loaded.

关于本站

我是 QCSunny，一名开发者，关注 Web 开发、工具链以及让日常计算更省事的小工具。本站分为两部分：博客与一套持续扩充的免费在线工具。

工具部分——科学计算器、单位换算、金融计算器、二维码生成器、密码/UUID 生成器等——全部手写实现， 不加载任何追踪脚本。所有计算均在浏览器本地完成：你输入的内容不会被上传、存储或记录，页面加载后离线也能继续使用。

Source code and issue reports live onGitHub.