Developer Tools

AI Content Detector

Analyze text to determine if it was written by AI or a human. Detects patterns from ChatGPT, GPT-4, Claude, and Gemini. Free, private, no signup required.

Private — runs in browserFree & no signupChatGPT, Claude, Gemini

Text to Analyze

0 words

Best results with 100+ words. This tool uses heuristic analysis — results are indicative, not definitive.

Analysis Results

Results will appear here

How to detect AI-generated text

Three steps to analyze any text for AI patterns.

01
Paste the text
Copy and paste the text you want to analyze. Works best with 100 or more words for reliable results.
02
Click Analyze Text
The tool analyzes linguistic patterns including sentence variance, transition words, passive voice, and AI-specific phrases.
03
Review the verdict and signals
See the AI vs. human score, the overall verdict, and a breakdown of each detected signal.

What people use it for

Teachers & educators

Check student submissions for AI-generated content to ensure academic integrity.

Content managers

Verify that freelance writers are submitting original human-written content.

Publishers & editors

Screen articles and blog posts before publication to maintain editorial standards.

HR & recruiters

Detect AI-written cover letters and job application essays.

SEO & content teams

Ensure your content passes AI detection before publishing to avoid search engine penalties.

Personal use

Check your own AI-assisted writing to see how detectable it is before submitting.

Frequently asked questions

Yes, completely free with no word limits and no signup required.

This tool uses heuristic analysis of linguistic patterns. It's a useful indicator but not 100% accurate. No AI detector is perfectly reliable — treat results as one signal among many, not a definitive verdict.

It analyzes patterns common to large language models including ChatGPT (GPT-3.5, GPT-4), Claude, Gemini, and similar models. It doesn't identify which specific model was used.

Yes. Heavily edited AI text, paraphrased content, or text that mixes AI and human writing may score lower. Conversely, some formal human writing may score higher.

No. All analysis runs entirely in your browser using JavaScript. Your text never leaves your device.

It analyzes sentence length variance, transition word density, passive voice ratio, AI-specific filler phrases, and lexical diversity (vocabulary richness).

Short texts don't have enough data for reliable pattern analysis. Longer texts give more accurate results.

Yes, the tool works on all devices including smartphones and tablets.

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