AI Detector — Free AI Text Detector Built for Accuracy

A powerful AI checker that analyzes every sentence. Try our AI detector free and see what's AI and what's human.

Paste your essay, paragraph, or any text here to run our free AI detector

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What is an AI Detector?

An AI detector is a tool that examines a piece of writing and determines whether it was produced by a human or generated by an artificial intelligence model like ChatGPT, Claude, or Gemini. It works by analyzing linguistic patterns that distinguish machine-written text from natural human writing — things like sentence structure variation, vocabulary predictability, and tonal consistency.

How It Works

How Does Our AI Detector Work?

Using our AI checker takes less than a minute — four steps to full clarity

Paste Your Text

Drop your essay, blog post, article, or any block of text into the input field on the left side of the AI checker tool. Use the Paste button to pull content directly from your clipboard.

Run the AI Checker

Our AI writing detector splits your content into individual sentences and runs each one through the analysis engine, evaluating writing patterns, vocabulary, and other signals.

Review Your AI Detection Results

The AI detector shows a verdict card with AI probability, a breakdown bar with AI/Mixed/Human percentages, and your full text highlighted sentence by sentence.

Edit and Recheck

Not satisfied? Edit your text directly in the AI text detector tool and click recheck to run the analysis again on your updated version — no need to copy-paste back and forth.

Who Uses an AI Checker?

The AI detector trusted by professionals and students across every field

Professors & Educators

Use our AI detector for teachers to review student submissions for AI-generated content and maintain academic standards.

Editors & Publishers

Use our AI writing detector as an editorial quality gate alongside traditional plagiarism checks in newsrooms and journals.

Students & Writers

Self-check your essay with the AI checker free before submitting to make sure your natural writing style doesn't accidentally get flagged.

Why Choose Our AI Detector?

What sets the best AI detector apart from every other tool

Sentence-Level Detection

Most free AI checkers give you a single score for the entire document. Our AI detector analyzes every sentence individually, so you see exactly which parts look AI-generated and which read as human.

Three-Tier Scoring

No binary "AI or human" judgment. This AI text detector classifies each sentence as AI-Generated, Mixed, or Human-Written — a more accurate and nuanced picture of the content.

Built for Academic Writing

Our AI writing detector is trained specifically on essays, research papers, and assignments. It understands the difference between formal academic tone and AI-generated formality.

Edit and Recheck in One Place

Spotted a flagged sentence? Edit it right inside the AI checker free tool and recheck instantly. No other AI detector free online offers this kind of iterative workflow.

Frequently Asked Questions

Everything you need to know about the product and billing.

How accurate is an Al detector?

No AI detector is 100% accurate — anyone who claims otherwise is overpromising. Our AI text detector achieves high accuracy on academic-style writing by analyzing sentence-level patterns rather than relying on a single document score. The three-tier system (AI, Mixed, Human) gives you honest confidence levels rather than a misleading binary answer.

Can this Al detector detect ChatGPT and other Al models?

Yes. Our AI detector identifies patterns common to all major models, including ChatGPT (GPT-3.5 and GPT-4), Claude, Gemini, Llama, and others. Since AI models share certain linguistic tendencies — like uniform sentence length and predictable vocabulary — our AI checker catches these regardless of which model produced the text.

Can I use this AI text detector to check my own essay before submitting?

Absolutely. Many students use our AI checker as a pre-submission check to make sure their writing doesn't accidentally resemble AI-generated content. Paste your essay into the AI detector, review the sentence-level results, and edit any flagged sections directly inside the tool before you hand it in.

What do Al-Generated, Mixed, and Human mean in an Al detector?

Our AI checker classifies each sentence into one of three categories. AI-Generated means the sentence shows strong patterns consistent with machine writing. Human means it reads naturally and matches typical human writing patterns. Mixed means the sentence has some AI-like qualities but also shows human characteristics — this often happens when someone edits or lightly rewrites AI output.

Is this Al checker free to use?

Yes. Our AI detector free plan gives you full access to the core detection engine — sentence-level analysis, three-tier scoring, highlighted text, and the edit-and-recheck workflow — all with no signup required. You can use this AI checker free for up to 1,000 words per scan. For higher limits, Pro plans start at $19 per month.

Does this Al detector store my text?

No. The AI detector processes your text in real-time and does not store it on our servers after the analysis is complete. Whether you're using the AI checker free plan or a Pro subscription, your content remains completely private.

Stop Guessing. Start Detecting

Use our free AI text detector to see exactly which sentences are human and which are machine-written — in seconds.

Try the AI Detector Now

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