AI detectors
17 AI tools, most popular first.
GPTZero
Free AI detector that scores text for AI-generated content, sentence by sentence, for educators, students and writers.
Scribbr
Academic writing platform offering plagiarism and AI-content checks, proofreading, citation generation and writing tools for students.
ZeroGPT
Online AI content detector that flags AI-written text and images, plus paraphrasing, grammar and plagiarism tools for writers, students and educators.
Turnitin
Academic integrity platform that detects plagiarism and AI-generated writing and supports grading and feedback for schools and universities.
Undetectable AI
Detects AI-generated text and images and rewrites AI writing so it reads as human, for students, writers and professionals.
Copyleaks
Detects AI-generated and plagiarized text, images, and video, mainly for schools, publishers, and enterprises protecting content and IP.
Originality.ai
AI detector and content checker that flags AI-generated text and plagiarism for writers, editors, teachers and publishers.
Resemble AI
Real-time detection of AI-generated audio, video and images, plus watermarking, for enterprises fighting deepfake fraud.
AI or Not
Detects AI-generated text, images, music, video and deepfakes, for individuals and businesses via web or API.
Modulate
Audio-native voice AI API for transcription, deepfake and emotion detection, and voice moderation, used by businesses and gaming platforms.
Pangram
AI detector that flags text and images likely generated by ChatGPT, Claude, Gemini and other models, for educators, publishers and organizations.
Phrasly
Humanizes AI-generated text, detects AI writing, and offers a chatbot and document editor for writers, students and businesses.
Sightengine
API for moderating and analysing images, videos, text and audio, plus detecting AI-generated media, for platforms that need automated content filtering.
StealthWriter
Rewrites AI-generated text into natural-sounding human writing and checks it with a built-in AI detector, for writers, marketers and professionals.
Winston AI
AI content detector and plagiarism checker that flags text and images generated by ChatGPT, Claude, Gemini and other models, for educators, publishers and writers.
Hive Moderation
AI content moderation for images, video, text and audio, built for trust and safety teams on large platforms.
Cleanlab
Platform for monitoring, evaluating and fixing AI safety risks, hallucinations and data errors for teams building AI applications.