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Free AI Detector — Check If Text Is AI or Human

Detect whether text was written by AI or a human with confidence scoring.

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How Does Our AI Detector Work?

Our free AI detector analyzes text for patterns commonly associated with AI-generated content. When you check if text is AI generated, the tool scans for repetitive sentence structures, uniform tone, and statistical patterns that distinguish AI writing from human writing. It works as a ChatGPT detector, Gemini detector, and general AI content checker.

The AI writing detector provides a confidence score and highlights individual sentences most likely to be AI-generated. Whether you're a teacher checking student work, an editor verifying content authenticity, or a publisher ensuring human-written quality — this free AI detector works without sign up and delivers instant results on any text.

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About this tool

What is AI Detector?

An AI detector analyzes text and calculates the probability it was generated by an AI language model. It looks for statistical patterns that distinguish machine-generated text from human writing — including predictable word choices, uniform sentence pacing, and the absence of natural writing imperfections.

Textora's free AI detector gives you an AI Score and a Human Score, plus a sentence-by-sentence breakdown showing exactly which sentences triggered the highest AI probability. That tells you precisely where to edit rather than rewriting blindly.

Quick guide

How to Use AI Detector

  1. 1Paste the text you want to check into the input box
  2. 2Click Detect
  3. 3Review your AI Score and Human Score
  4. 4Check the sentence-level breakdown to identify high-scoring sentences
  5. 5Edit flagged sentences manually or run them through the AI Humanizer
Who it’s for

Who Uses AI Detector?

Teachers and Professors
Screen student submissions for AI-generated content before grading or triggering formal academic processes.
Students
Check their own work before submission to understand detection risk and decide what to revise.
Editors and Publishers
Verify that submitted or outsourced content is genuinely human-written before publishing.
Content Managers
Audit freelancer-submitted work to confirm it wasn't generated wholesale by AI tools.
HR Professionals
Screen job application writing samples for AI-generated content before assessing candidates.
Why it’s free: AI detection tools often charge per check or hide behind expensive subscriptions. Textora's AI detector is free because students and educators shouldn't have to pay to verify whether content is human-written. No sign up, no fees, unlimited checks.
Common questions

Frequently Asked Questions

Is Textora's AI detector free?
Yes — completely free with no word limits and no account required.
Which AI models does it detect?
It detects patterns from ChatGPT, Gemini, Claude, Copilot, and all major AI language models. The detection is model-agnostic, not model-specific.
How accurate is it?
Very accurate for typical AI-generated text. Like all AI detectors, it is not 100% accurate — structured human writing can score higher, and heavily edited AI text can score lower.
Is it the same as Turnitin?
No. Textora is an independent free tool. Turnitin is a separate commercial service used by educational institutions with its own detection algorithms.
What score means the text is AI-generated?
Scores above 70% indicate a high probability of AI generation. Scores between 40–70% are ambiguous. Below 30% is likely human-written.
Can I use it to check my own writing?
Yes. Many writers use it to check their own AI-assisted work before publishing to understand how it will be perceived.
Can edited AI text pass the detector?
Yes. Heavily edited and humanized AI text consistently scores lower. Detection scores indicate probability, not certainty.
Does it store my text?
No. Your text is processed to generate a detection score and is not stored or used to train models.

What Is the AI Detector?

The AI Detector analyses text and returns a confidence score indicating whether it was likely written by a human or generated by an AI model such as ChatGPT, Gemini, or Claude. It looks for the structural patterns, word choices, and phrasing repetition that are common in AI-generated content. Teachers, editors, and publishers use it to check whether submitted writing is original.

Why Use the AI Detector on Textora?

Textora's AI Detector is free to use with no account or subscription required. You can check as much text as you like without hitting a limit or being asked to upgrade. The result is delivered instantly in your browser, with no data stored on our servers after your session ends.

How to Use It

  1. Paste the text you want to check into the input area.
  2. Click the detect button to run the analysis.
  3. Review the confidence score and the breakdown of AI vs. human signals.
  4. Use the result to decide whether the text needs further review or editing.

Who Is This For?

This tool is aimed at educators who want to check student assignments for AI use, editors who review freelance submissions, and content managers who need to verify that published pieces meet originality standards. It is also useful for writers who want to check their own AI-assisted drafts before submitting them.