关于本站About UpBox

这是什么What this is

UpBox 优盒工具箱是一个纯静态的在线工具站，把日常会用到的小工具集中在一个页面里：格式化 JSON、统计字数、转换时间戳、换算单位、压缩图片、合并 PDF 等。UpBox Toolbox is a static site that gathers small everyday utilities in one place: formatting JSON, counting words, converting timestamps, converting units, compressing images and merging PDFs.

站点不提供账号系统，也没有后台数据库。打开页面就能用，关掉页面不会留下账号或云端文件。There is no account system and no backend database. Open a page and use it; closing it leaves no account or cloud copy behind.

工具怎么运行How the tools run

所有计算与文件处理都在当前浏览器里完成：图片压缩用 Canvas 重绘并导出，PDF 合并与图片转 PDF 使用随页面下发的 pdf-lib，文本与数据类工具只在本机内存中读写。All calculations and file handling happen in your browser: images are re-drawn and exported with Canvas, PDF merging and image-to-PDF use a locally served copy of pdf-lib, and text or data tools only touch local memory.

页面不会把你的文件发到服务器，也不依赖第三方在线转换服务。断网后，已经加载的页面仍可继续使用。Files are never sent to a server and no third-party conversion service is involved. Once loaded, the page keeps working without a network.

内容与广告Content and ads

工具说明、步骤与常见问题按实际功能编写，不使用无法验证的效果承诺。页面中的广告位当前为演示内容，不加载第三方广告脚本；正式投放时会与正文明确区分。Descriptions, steps and FAQs are written from the actual behaviour of each tool, without unverifiable claims. Ad slots are currently placeholders and load no third-party ad scripts; real ads will be clearly separated from content.

技术说明Technical notes

站点为纯静态 HTML，图标与字体均自托管，不引用外部 CDN；部署在静态托管平台上，通过响应头控制缓存与基础安全策略。The site is plain static HTML. Icons and fonts are self-hosted with no external CDN, and caching plus basic security headers are set at the static host.

如果你发现某个工具的结果不对，或页面在特定浏览器上显示异常，请记录工具名称、输入内容和浏览器版本，便于复现。If a tool returns a wrong result or a page breaks in a particular browser, note the tool name, the input and the browser version so it can be reproduced.