Used by over 10 million teachers and students across more than 100 countries, GPTZero detects AI-generated text across major language models while providing a suite of writing verification tools
AI tools for aI authorship detection
3,708 live tools · ranked by monthly traffic and community votes · dead links removed automatically
Copyleaks is a content authenticity platform that checks whether text was written by AI and whether it copies existing sources.
Undetectable AI bundles an AI text detector, an AI humanizer and an AI image detector into one account.
Winston AI is an AI content detector and plagiarism checker built for education, SEO, and writing.
Pangram Labs makes an AI detector that checks whether text was written by a person or generated by a language model.
Sapling AI Detector scores pasted text or uploaded PDF and Word files for the probability that a model wrote it.
AI or Not is an AI detector that checks whether images, text, video, audio and music were generated by AI, and flags deepfakes.
Humanizer AI is an editing room for AI-assisted drafts.
Illuminarty detects whether an image or a piece of text was created by AI.
WriteHuman is an AI humanizer that rewrites machine-generated drafts so they read like a person wrote them.
BypassGPT is an AI humanizer that rewrites machine-generated text so it reads like human writing and passes AI detectors.