AI writing analysis

See how much of your text looks AI-written

Analyze writing patterns, estimate AI probability, and review the sentences that influenced the result.

1

Text to analyze

TXT, MD, PDF or DOCX · max 20 MB 0 / 15000
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A clearer result

More than a single percentage

See what influenced the result and interpret it in context.

Example reportOverall and sentence-level view
68%AI probability
AI-written68%
Human-written32%

01The opening adds context in a more varied, natural rhythm.

02This sentence follows a highly predictable structure and repeats the same transition pattern.

03The closing returns to a specific observation and changes pace.

Potential AI signal

Sentence highlights

Locate the passages that show the strongest AI-writing signals.

Multilingual checks

Analyze text in English, Chinese, Japanese, and many other languages.

Fast analysis

Receive a readable result in seconds without waiting for a background task.

Privacy-aware

Text is sent only for detection and is not published on this page.

Simple workflow

Check AI-writing signals in three steps

Paste text or import a supported document, then review the result without complicated settings.

  1. 01

    Paste text or upload a file

    Add an article, essay, report, or import a TXT, MD, PDF, or DOCX document.

  2. 02

    Analyze writing patterns

    The detector evaluates sentence structure and patterns associated with generated text.

  3. 03

    Review the evidence

    Read the probability, overall verdict, and highlighted sentences together.

What the detector reads

Writing patterns that can influence an AI score

AI detection does not depend on one forbidden word. It compares patterns across the passage and estimates how closely the writing resembles generated text.

01

Predictable phrasing

Repeatedly choosing the most expected continuation can make a passage look unusually uniform.

02

Repeated structures

Similar sentence openings, transitions, and paragraph shapes can raise the score.

03

Uniform sentence rhythm

Little variation in sentence length and cadence may resemble generated prose.

04

Limited word variation

A narrow vocabulary or recurring generic phrases can become a useful signal.

No single pattern proves AI authorship. Formal writing, translation, heavy editing, and the topic itself can create similar signals, so context still matters.

Read scores responsibly

How to interpret the result

Detection scores are estimates. Writing style, editing, translation, and text length can all affect them.

Before you interpret the score

  • Analyze a complete, coherent passage instead of one isolated sentence.
  • Remove long quotations, references, tables, and unrelated boilerplate.
  • Keep the original language and context whenever possible.
  • Use the score with sentence highlights and your own review.
0–19%

Mostly human signals

Few AI-associated patterns were detected.

20–79%

Mixed signals

Some passages may be generated or heavily edited.

80–100%

Strong AI signals

Many patterns resemble machine-generated writing.

Built for real drafts

Check essays, articles, reports, and more

Different writing contexts create different signals. Review the result alongside the purpose and audience of the text.

01

Essays and academic writing

Review essays, research drafts, assignments, personal statements, and school reports before submission.

02

Articles and content work

Scan blogs, newsletters, marketing copy, and editorial drafts for formulaic or overly predictable passages.

03

Professional documents

Check resumes, cover letters, proposals, business reports, and client deliverables before sharing.

04

Long-form documents

Analyze longer, coherent passages for a more useful signal than a single short sentence can provide.

Choose the right tool

AI Detector and AI Humanizer do different jobs

Detection helps you identify possible AI signals. Humanization helps you revise text that sounds stiff or generic.

AI Detector

Estimates whether text contains patterns associated with machine-generated writing.

  • Returns an AI probability and overall verdict
  • Highlights sentences that influenced the score

AI Humanizer

Rewrites AI-assisted drafts to improve rhythm, clarity, and natural expression.

  • Creates an editable, more natural draft
  • Preserves the source language and core meaning
Open AI Humanizer →

AI detection is not plagiarism checking

An AI detector looks for generation patterns. A plagiarism checker searches for matches with existing sources. A text can be original but AI-generated, or copied without being AI-generated.

Frequently asked questions

AI Detector FAQ

What the score means, what can affect it, and how to use it responsibly.

Can an AI detector be 100% accurate?

No. AI detection is an estimate and false positives are possible. Never use one score as the sole basis for a high-stakes decision.

What text length works best?

Longer, coherent passages usually provide more patterns to analyze. Very short or heavily quoted text is less reliable.

Does a high score prove that AI wrote the text?

No. It means the writing contains patterns the detector associates with generated text; it does not establish authorship.

Can edited or translated text affect the score?

Yes. Rewriting, grammar correction, translation, formulaic language, and technical prose can all change detection results.

Which languages can I check?

The detector supports multiple languages. Accuracy may vary by language, topic, and the amount of text supplied.

Ready to check your text?

Paste a passage and review its AI probability and sentence-level signals in seconds.

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