AI Detector – Free AI Writing Pattern Checker
This AI detector looks for writing patterns that are common in machine-generated text, such as very even sentence length, stock phrases like "delve into" and "it is important to note", heavy use of linking words and repeated wording. It then gives a pattern score and shows every signal so you can judge for yourself. Please note that no AI detector can be certain, including this one. Careful human writers can show the same patterns, so never treat the result as proof. Your text is analyzed in your browser and is never uploaded.
AI Detector
Check text for AI-like writing patterns. A rough guide, never proof.
How to use the AI Detector
- Paste at least 80 words of text into the box.
- Press Check text.
- Read the pattern score and the list of signals.
- Review the highlighted phrases and decide for yourself, the score is only a guide.
Features
- Pattern score with a low, medium or high band
- Sentence rhythm (burstiness) check
- Stock AI phrases highlighted in your text
- Repetition and word variety check
- Every signal explained in plain words
- Private: text never leaves your browser
Frequently asked questions
Can this AI detector tell for sure if text is written by AI?
No. It only measures writing patterns and cannot prove who wrote a text. Human writers can trigger the same patterns, and AI text can avoid them.
How does the pattern score work?
It combines several signals: how much sentence length varies, how many stock phrases appear, how many sentences start with linking words, how repetitive the wording is and how rarely contractions are used.
Why might my own writing score high?
Formal, academic and non-native English writing is often very even and uses linking words, which can look like machine text. This is why the result should never be used as the only evidence.
How much text do I need?
At least 80 words. Short texts do not have enough sentences to measure patterns, so the tool asks for more.
Is my text stored or shared?
No. The analysis runs in your browser and the text is not uploaded or saved.