Free AI Content Detector
Free AI Content Detector that quickly checks whether text is AI-generated or human-written
How to Use the AI Content Detector
Step 1: Paste the Text You Want to Check
- Text to Analyze: Paste any piece of writing into the input box — a blog post, essay, email, product description, or social media caption. The AI Content Detector works on up to 2,000 words per check.
Step 2: Or Upload a File Instead
- Upload File (optional): Instead of pasting text, you can upload a file directly — .txt, .md, .pdf, .doc, .docx, .odt, .html, or .htm, up to 2MB. The text is automatically extracted and added to the input box, ready for analysis.
Step 3: Click ✨ Generate Free AI Score
- Generate Free AI Score: Click the “✨ Generate Free AI Score” button to instantly receive an AI score, a verdict, a signal-by-signal breakdown, and any AI-typical phrases found in your text.
Features of the AI Content Detector
The AI Content Detector analyzes any piece of writing and estimates the likelihood that it was generated by an AI model rather than written by a person. Every analysis is powered by advanced AI trained to recognize the subtle patterns that separate machine-written text from authentic human writing.
AI Score Rating
Every analysis includes an AI Score from 0 to 100 that estimates how likely the text is to be AI-generated. A score of 70 or above indicates content that is likely AI-generated, a score between 40 and 69 indicates mixed content, and a score below 40 indicates content that reads as human-written.
Detects Common AI Writing Patterns
The AI Content Detector identifies the most common AI writing signatures — excessive hedging phrases like “It is worth noting that,” overused transition words, repetitive sentence structures, generic filler phrases, and robotic formal phrasing that signals machine-written content.
Signal-by-Signal Breakdown
Rather than a single score, the AI Content Detector breaks its analysis into five individual signals — sentence uniformity, hedging phrases, transition overuse, robotic formality, and generic content — so you can see exactly which patterns triggered the result.
Upload Files Directly
Don’t want to copy and paste? Upload your document directly. The AI Content Detector accepts .txt, .md, .pdf, .doc, .docx, .odt, .html, and .htm files up to 2MB, automatically extracting the text so it’s ready to analyze in seconds.
AI Patterns Found
When the detector flags specific AI-typical phrases in your text — like “furthermore” or “it is worth noting” — they’re listed individually so you can see and edit the exact wording that reads as machine-generated.
Analysis Summary
After every scan, a brief summary explains the reasoning behind the score, so you understand exactly why a piece of text reads as AI-generated or human-written.
Copy and Download Report
Copy the full detection report to your clipboard instantly or download it as a clean text file. Both options are available with a single click directly from the results panel.
AI Content Detector Formula
The AI Content Detector follows a structured analysis framework to produce a consistent, explainable AI score.
AI Score = Sentence Uniformity + Hedging Phrases + Transition Overuse + Robotic Formality + Generic Content
Sentence uniformity measures how repetitive sentence length and structure are. Hedging phrases capture soft qualifiers AI models overuse. Transition overuse flags formal connector words used more often than natural writing would use them. Robotic formality checks for missing contractions and stiff phrasing. Generic content flags vague filler language that lacks specific detail. Each signal is scored individually, then combined into the final AI score and verdict.
Examples of AI Content Detector Results
Example 1: Blog Post
- Text Analyzed: “Remote work has become increasingly prevalent in today’s modern workforce. It is worth noting that there are numerous benefits associated with working from home.”
- AI Score: 82%
- Verdict: Likely AI-Generated
- Patterns Found: “It is worth noting,” “Furthermore,” “have been shown to”
Example 2: Business Email
- Text Analyzed: “Great news — the project is done and everything was delivered on time, just as we planned.”
- AI Score: 14%
- Verdict: Human Written
- Patterns Found: None
Example 3: Marketing Copy
- Text Analyzed: “Our platform leverages cutting-edge technology to deliver seamless, industry-leading solutions that empower businesses to unlock their full potential.”
- AI Score: 58%
- Verdict: Mixed Content
- Patterns Found: “leverages,” “seamless,” “empower,” “unlock their full potential”
What is an AI Content Detector?
An AI content detector is a tool that analyzes writing to estimate the probability that it was generated by an AI model like ChatGPT, Claude, or Gemini rather than written by a person. It works by scoring text against known patterns of AI-generated writing — including sentence structure, phrasing habits, and word choice — rather than by identifying a fixed “AI signature.”
Why does AI-generated text get flagged?
AI language models are trained to produce grammatically correct, coherent text, but they tend to over-rely on certain patterns — long hedging phrases, formal transition words, uniform sentence lengths, and predictable paragraph structures. These patterns make AI text statistically distinguishable from natural human writing, which tends to have more variation, occasional imperfections, and less predictable structure.
How accurate is AI content detection?
No AI content detector is 100% accurate. Detection works by identifying statistical patterns common in AI-generated text, not by definitively proving authorship. Human writers can occasionally produce text that reads as AI-generated, and AI text that has been edited by a person can pass as human. Treat the AI score as a signal to investigate further rather than definitive proof, especially for high-stakes decisions like academic discipline or content moderation.
What types of content can I check?
The AI Content Detector works on any type of writing, including blog posts, articles, essays, emails, social media captions, product descriptions, marketing copy, and academic papers. You can paste text directly or upload a file (.txt, .md, .pdf, .doc, .docx, .odt, .html, or .htm, up to 2MB). Text generated by any AI model — including ChatGPT, Claude, Gemini, Llama, or Copilot — can be checked.
Does this tool store the text I submit?
[Replace this answer with your actual data retention policy before publishing — state clearly whether submitted text is stored, logged, or used for any purpose beyond generating the analysis.]
How does the AI Score work?
The AI Score is a percentage from 0 to 100 that estimates how likely a piece of text is to be AI-generated. A score of 70 or above (shown in red) indicates content that is likely AI-generated. A score between 40 and 69 (shown in yellow) indicates mixed content, often the result of AI-assisted editing of human writing or vice versa. A score below 40 (shown in green) indicates content that reads as human-written.
Is the AI Content Detector free?
Yes. The AI Content Detector is completely free to use and instantly analyzes your text for AI-generated writing patterns without any sign-up, subscription, or per-use fees.