AI Detector — Best AI Tools (2026)

This free Turnitin AI Detector preview analyzes pasted text to highlight AI-generated passages. Unlimited words with no signup required for quick checks.

MyDetector is a free AI content detector and humanizer. It identifies text generated by ChatGPT, Claude, Gemini, and other AI writers and offers a companion humanizer to rewrite detected content.

Turnitin is the academic integrity platform used by universities and schools worldwide. It offers originality reports, AI writing detection, rubric feedback, and secure submissions.

Sightengine is an image and video moderation API. Detect nudity, violence, weapons, drugs, text overlays, AI-generated content, and more with simple REST endpoints trusted at scale.

Copyleaks is an AI-powered platform for detecting AI-generated content, plagiarism, and code similarity—used by universities, publishers, and enterprises for academic integrity and content authenticity.

Grammarly is an AI writing assistant that checks grammar, spelling, punctuation, tone, and clarity across browsers, desktop apps, and mobile devices.

GPTZero is an AI content detector used by 17 million people to identify AI-generated text. It provides sentence-level detection with high accuracy across major AI models.

ZeroGPT is an AI content detection platform that analyzes text to determine whether it was written by AI models like ChatGPT, GPT-5, Gemini, or DeepSeek. It highlights AI-generated sentences and provides detailed PDF reports for educators, publishers, and content teams.