adCAPTCHA vs Roundtable（Proof of Human）

免费 / 开源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.

免费 / 开源面向学校与编辑的 AI 检测与写作验证

免费 / 开源以隐私为先的网络机器人检测与欺诈防护平台

精准研究受众搭配 AI 校验的数据质量

免费 / 开源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.

面向内容完整性的企业级 AI 与抄袭检测

免费 / 开源支持句子级洞察的多语言 AI 检测工具

免费 / 开源Winston AI is an AI content detection suite that identifies text and images produced by generators like ChatGPT, Gemini, and Claude. Alongside its detector it offers plagiarism checking, an AI image and deepfake detector, writing feedback, and an API for embedding detection into other platforms.

免费 / 开源免费 AI 检测器，提供逐句分析与文本人性化改写

免费 / 开源不只给分数，还标出证据的 AI 检测器

免费 / 开源两分钟，一个陌生人，一个问题：真人还是 AI？

免费 / 开源为学校、大学与团队打造的精准抄袭与 AI 检测