开发者工具
浏览器端工具，面向开发者。所有工具在本地运行——数据不会发送到外部服务器。
内容预览器
预览 Markdown、验证 JSON、格式化 XML 和比较文本差异——全部在浏览器中完成，无需数据传输。
Markdown JSON XML Diff
开发者 Passport Photo Maker
Free online passport photo maker. Remove background, resize to official dimensions, and print at home — all in your browser, no upload needed.
Remove background and replace with white — automaticallyOfficial dimension presets for US, UK, EU, Canada, Australia, ChinaArrange multiple photos on one sheet for printing (4x6, A4, Letter)
实用工具 Text to Speech Reader
Free online text-to-speech tool that reads articles aloud in English and Chinese. Adjust voice, speed, and volume — runs entirely in your browser.
Read articles in English and Chinese with natural voicesAdjustable speed (0.5x–2.0x), volume, and voice selectionSentence-by-sentence navigation with visual highlighting
实用工具