Doculogy 已永久关停。原官方域名（doculogy.io）过期后被黑产接管，目前强制 200 重定向至越南足球垃圾广告网站，存在极高安全风险。
域名安全预警：原域名 doculogy.io 可能已过期停靠、出售或易主，为保护访问安全已屏蔽直接外链跳转。
AI 问答中目前正常运营的已核验工具，按近期访问量与编辑评分排序。
免费 / 开源Studocu is a global study platform where students share and access lecture notes, summaries, study guides and past exams, with an AI assistant, quizzes, flashcards and note tools to help them learn faster.
#2
免费 / 开源Docalysis is a web app that lets you upload PDF documents and ask questions about them in plain language. The AI reads your files and returns sourced answers in seconds, so you can skip manual page-by-page reading and still get accurate, referenced results.
#3免费 / 开源PDF.ai lets you chat with any PDF using AI: upload or open a document and ask questions to get answers with citations, instant summaries and extracted data. The platform also provides a developer API for parsing documents, pulling out structured data and splitting PDFs inside your own workflows.
Doculogy 曾是一款基于人工智能的文档分析与摘要工具，能够为学生和研究人员快速解析长篇论文和财报。随着项目弃坑，原域名（doculogy.io）过期后遭到抢注，目前已被恶意重定向至不相关的越南足球结果网站。
请切勿点击已遭劫持的原始域名。查阅首页精选的安全 AI 文档分析工具，获取受信任的稳定平替。
免费 / 开源Docalysis is a web app that lets you upload PDF documents and ask questions about them in plain language. The AI reads your files and returns sourced answers in seconds, so you can skip manual page-by-page reading and still get accurate, referenced results.
免费 / 开源面向学生的一站式 AI 学习平台
免费 / 开源PDF.ai lets you chat with any PDF using AI: upload or open a document and ask questions to get answers with citations, instant summaries and extracted data. The platform also provides a developer API for parsing documents, pulling out structured data and splitting PDFs inside your own workflows.
