AI Paraphraser

QuillBot is a web-based AI writing platform that integrates paraphrasing, grammar checking, plagiarism detection, AI humanization, citation generation, and PDF conversion into a single tool suite. It operates on a freemium model with a Premium upgrade tier and includes experimental features such as an AI Image Generator and AI Chat alongside its core writing modules.

云深卜卦：为现代生活重新设计的易经AI应用。我们将三千年古老的易经智慧与前沿AI结合，为你的现实问题提供清晰、可执行的建议。不再是神秘的文言文，不再模糊的预测，只有你真正能听懂和用得上的实用指导。

Web-based AI text humanization service that rewrites machine-generated content to evade detection by Turnitin, ZeroGPT, CopyLeaks, and QuillBot. Includes a REST API with PRO plans, a no-credit-card free tier, and built-in text statistics for input and output.

学术猹 (Xue Shu Cha) is a China-based, Chinese-language AI-content detection platform for academic theses, offering free daily screening under the youdao.com domain.

Free online tool that rewrites AI-generated text into natural, human-like writing with three modes: Standard, Academic, and Easy.