QCSunny Lab

Office & DocumentsOffice 办公与文档处理

Excel Workbook Analyzer & CleanerExcel 工作簿分析与清理器

Drop an .xlsx/.xlsm and see what makes it bloated — unused cell styles, hidden and external defined names, dead links, leftover media, pivot caches — then strip them and download the lean copy. All in the browser.拖入 .xlsx/.xlsm 看清它为何臃肿——未使用的单元格样式、隐藏与外部命名区域、失效链接、残留媒体、透视缓存——勾选清理后下载瘦身副本。全程浏览器本地。

PDF Toolkit (Merge · Split · Rotate · Watermark)PDF 工具箱(合并 · 拆分 · 旋转 · 水印)

Merge, extract or split pages, rotate, watermark, compress (lossless repack), read or strip metadata, PDF → images and images → PDF — all in the browser, nothing uploaded.合并、提取、拆分页面、旋转、加水印、压缩(无损重打包)、查看/清除元数据、PDF 转图片、图片合成 PDF——全程浏览器本地,绝不上传。

Document OCR (PDF · Image → Text)文档 OCR(PDF · 图片转文字)

Extract editable text from scanned PDFs and JPG/PNG/WebP images — Tesseract running as wasm in your browser, English and Simplified Chinese, with a confidence rating per page. Nothing is uploaded.从扫描版 PDF 与 JPG/PNG/WebP 图片提取可编辑文字——Tesseract 以 wasm 在浏览器内运行,支持英语与简体中文,逐页给出置信度。绝不上传。