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Free AI/Human Detector

Unfox AI Content Detector

Regardless of the content, once AI has touched it, our AI detector catches those subtle "non-human" traces. Protecting originality and defending truth starts with a trustworthy artificial intelligence detector.

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Built to check AI traces from ChatGPT, Claude, Gemini, and multilingual writing workflows

ChatGPT and OpenAI
Claude
Gemini
DeepSeek
Grok
Qwen
Kimi
Doubao
ChatGPT and OpenAI
Claude
Gemini
DeepSeek
Grok
Qwen
Kimi
Doubao
Why Choose Us

Why Do You Need an AI Detector?

01

Worried your article might be mistaken for AI-written? Use an AI text detector to prove your innocence.

02

Unsure if the assignment or manuscript you received came from ChatGPT? Let the AI detector check it for you.

03

Search engines are penalizing purely AI-generated content. Run it through an ai content checker before you publish.

04

An AI detector is not optional?it is a necessity in the content era.

Core Features

Core Features of Our AI Checker

Deep Learning AI Detection Engine

Our AI detector is powered by a proprietary large model that deeply analyzes text perplexity, burstiness, and other features. Even rewritten or polished AI-generated content cannot hide.

Multilingual & Multi-Model Coverage

Not just for English?this AI detector is equally sharp with Chinese content. It covers major AIs like ChatGPT, Claude, Gemini. One detector, all identified.

Sentence-Level Highlighted Report

The result is no longer just a cold score. Our artificial intelligence detector highlights each sentence as "AI-suspected" or "human-written," so you can instantly see where the issue lies.

Bulk Detection & API Integration

Have a large volume of content to review? Embed the AI content detector into your workflow. It supports bulk document uploads and offers an API to equip your entire system with AI identification capabilities.

Use Cases

Use Case

Unfox helps teams protect originality wherever text is created, reviewed, published, or trusted.

Education

The guardian of originality for teachers and students. Let the AI writing detector uphold academic integrity.

Content Creation

Editors and creators use the AI content detector to ensure articles pass originality checks.

Recruitment & Due Diligence

Was that cover letter or report ghostwritten by AI? The AI detector helps you distinguish genuine from fake.

Website Operations

Avoid search engine penalties. Let the AI text detector scan your entire site content.

Accuracy
99.8%

In a test set of millions, our AI detector's false positive rate is below 0.2%.

Detections Daily
5 Million+

The AI checker trusted by users worldwide.

Data Security
100%

We never store your content. It is immediately discarded after detection. Your privacy is safe the moment you hand it to our AI content detector.

Testimonials

What Users Say About Our AI Detector

Writers, educators, and content teams rely on Unfox to review AI-generated text with clarity.

"I run student essays through Unfox before I review them, and it still catches lightly rewritten AI sections without overreacting to normal edits."

Dr. Elena Moore
University professor

"For our SEO team, the AI content detector is a fast first pass. It helps me catch filler paragraphs before they reach publish."

Nina Patel
SEO editor

"The confidence score gives me a clear starting point. It is much easier to triage a long article with a signal like that."

Marcus Chen
Content operations lead

"We work in two languages, and Unfox has been surprisingly consistent on both English and Chinese drafts. That matters in localization review."

Sara Kim
Localization manager

"The privacy-first workflow is a big deal for us. I can check client copy and internal docs without worrying about content being retained."

Daniel Reed
Agency director

"When writers use AI for brainstorming, I still need to know which sections need a human rewrite. This makes editorial review faster."

Maya Thompson
Editorial manager

"I tested it on paraphrased, polished text and it still surfaced the patterns I was looking for. That is the signal I need in QA."

Owen Brooks
Quality reviewer
FAQ

Frequently asked questions

Free to Start

Don't let AI rewrite your authenticity.

Use the AI detector today and take the truth of your content back into your own hands.

No credit card required.