AI Content Checker
Get an instant estimate of how likely a piece of text was written by AI vs. a human — free, unlimited, no signup required.
Free & unlimited checks. For best accuracy, paste at least 50–100 words.
What Does This Tool Look At?
The checker analyzes several writing-pattern signals that tend to differ between AI-generated and human-written text.
Sentence Length Variation
Human writing tends to mix short and long sentences ("burstiness"). AI-generated text often has more uniform sentence lengths.
Word & Phrase Repetition
Repeated words, phrases and overly consistent vocabulary can be a sign of machine-generated text.
Common AI Phrasing
Certain transition words and stock phrases ("In conclusion", "It's important to note", "Overall") appear more frequently in AI writing.
Frequently Asked Questions
Is this tool really free?
Yes — checking your content is completely free with no signup or usage limits.
Is this 100% accurate?
No detector is 100% accurate, including this one. It provides a heuristic estimate based on writing patterns, not a guaranteed verdict. Use it as one signal among several.
Why did my human-written text get a high AI score?
Very formal, structured, or repetitive human writing (and non-native English writing) can sometimes resemble AI patterns and score higher than expected. Treat results as a guide, not proof.
How much text should I paste?
For a more reliable estimate, paste at least 50–100 words. Very short texts don't provide enough signal for the analysis.
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