Free AI Content Detector
Check if text was written by AI — identify ChatGPT, Gemini, and other AI-generated content.
WHAT IS FREE AI CONTENT DETECTOR?
An AI detector analyzes text and calculates the probability it was written by an AI tool like ChatGPT, Gemini, or Claude. Teachers use them to check student work. Publishers use them to verify original content. AI detectors look for patterns common in AI writing — overly perfect grammar, repetitive sentence structures, and statistically predictable word choices. No AI detector is 100% accurate.
HOW TO USE IT — STEP BY STEP
Copy the text you want to check — at least 100 to 200 words for accurate results.
Go to one of the free AI detector tools listed below.
Paste the text into the detection box.
Click scan or check and wait for the results.
Read the percentage score — high AI probability means the text was likely AI-generated.
If the tool highlights specific sentences, those are the parts it believes are AI-generated.
Run the same text through 2-3 detectors for a more reliable result.
PRO TIPS
Run the same text through 2-3 different detectors to get a more reliable overall result.
Human-edited AI text often scores lower — the more a human edits, the less it looks like AI.
Short texts under 100 words are unreliable to check — AI detectors work best on longer content.
Some humans write in ways that look like AI and vice versa — always use results as a guide not final verdict.
FREE TOOLS YOU CAN USE RIGHT NOW
GPTZero
Most popular free AI detector — very accurate results
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Copyleaks AI Detector
Free AI detector with sentence-level results
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Originality AI
Professional AI detector — limited free checks
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Undetectable AI Checker
Free AI detection scanner
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