Plagiarism & Writing
AI Writing Analysis
Analyze writing quality metrics including vocabulary richness, sentence complexity, and readability. Architecture ready for future AI detection provider integration.
100% private — processed in your browser only
FreeTools does not currently provide AI writing detection. The metrics below are general writing quality indicators, not an AI detection score. No score on this page reflects the probability that text was written by AI.
How to use AI Writing Analysis
1
Paste your text
Enter the writing you want to analyze.
2
Click Analyze Writing
The tool computes vocabulary richness, sentence variance, and readability metrics.
3
Review quality metrics
Use the metrics to improve your writing. This is NOT an AI detection score.
Your privacy is protected
This tool runs entirely in your browser. Files you upload are never sent to any server — they are processed locally using JavaScript and immediately discarded when you close the page.
Frequently Asked Questions
Does this detect AI-generated writing?
No. FreeTools does not provide AI writing detection. The metrics shown are general writing quality indicators, not an AI detection score.
What is vocabulary richness?
The ratio of unique words to total words, expressed as a percentage. Higher richness typically indicates more varied, expressive writing.
What does sentence length variance mean?
The standard deviation of sentence lengths. Higher variance indicates more rhythmic, varied writing. Very low variance can make text feel repetitive.