Free browser tool
Check writing for AI-like patterns
Paste an article, essay, email, or post. We'll show the writing patterns behind the score instead of hiding them behind a verdict.
Paste your content
Longer samples give the checker more patterns to compare.
0 words · minimum 80
Your text stays in this browser and is not uploaded.
What this can do
Surface general patterns associated with polished or templated AI writing and explain which signals affected the score.
What this cannot do
Prove who wrote something or detect Claude's unpublished watermark. Anthropic has not released the detector, key, minimum length, or threshold needed for that check.