adCAPTCHA vs hCaptcha

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

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.

专项更强面向内容完整性的企业级 AI 与抄袭检测

专项更强一次扫描完成 AI 检测、查重与内容质量评估

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 / 开源不只给分数，还标出证据的 AI 检测器

专项更强将 AI 行为分析应用于网络与云端安全，但专为企业基础设施设计，而非网页表单。

专项更强Delivers endpoint security and data erasure tools, but lacks web-based bot detection and challenge features.

专项更强专注于保护 AI 模型免受提示词注入与越狱攻击，而非标准的网站流量机器人防御。

免费 / 开源会展示推理过程的 AI 图像与深伪取证工具