Dechecker vs Draftout

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.

ZeroGPT is an AI content detection platform with a text AI detector, AI image and video detectors, AI humanizer, plagiarism checker, and a set of writing tools including paraphraser, summarizer, grammar checker, translator, and citation helper.

面向学校与编辑的 AI 检测与写作验证

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

一次扫描完成 AI 检测、查重与内容质量评估

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

支持句子级洞察的多语言 AI 检测工具

AI 文本人性化与检测——一站式写作套件