Walter Writes AI vs WriteHuman

QuillBot is an AI writing suite best known for its paraphrasing tool. Users paste or type text and have it rewritten in different tones and styles, while companion tools handle grammar checking, summarizing, citations, plagiarism checks and AI content detection. It is widely used by students, writers and professionals.

免费在线 AI 文本人性化工具，让 AI 文字读起来更自然

集学术校对、查重与 AI 写作工具于一体

Undetectable AI is a web platform that scans text for AI fingerprints and rewrites flagged passages so they read like natural human writing. It bundles an AI detector, an AI humanizer and a growing set of media authenticity tools in a single dashboard.

让 AI 文本更像人写，并可检测真人程度

把AI生成文本改写成像真人写作一样自然

一次扫描完成 AI 检测、查重与内容质量评估

支持 100 多种语言的文本、图片、文档与语音 AI 翻译

写作、检测与摘要的一站式工作台

一个 AI 工作台，完成写作、编辑、检测与人性化

Phrasly is an AI writing suite built around a humanizer and detector pairing: it rewrites AI-generated drafts into more natural prose, then checks the result, alongside an AI writer, plagiarism checker, document editor, translator and chatbot.

聊天、图像、视频与日常文档任务，一个 AI 超级应用全搞定