OriginalityDetector

OriginalityDetector is a free AI content detector that checks whether text looks human-written or AI-generated. Paste a paragraph, article, or essay into the browser-based tool and get an estimated result in seconds, with no signup, no word limits, and no paid plan.

It is built for anyone who wants a fast second opinion on a draft: students, teachers, editors, marketers, and writers. The detector analyzes the final text itself, so ChatGPT, Claude, Gemini, and other AI writing can all be checked in one place.

Key Features

• Unlimited free scans: Run as many checks as you want without an account, a subscription, or a capped word count.
• Multi-model coverage: Analyze text generated or assisted by ChatGPT, Claude, Gemini, and other large language models.
• Instant results: Paste your content, click Check, and receive an estimated classification within seconds.
• Works across writing types: Use it for essays, blog posts, marketing copy, emails, and AI-assisted drafts.

Who Should Use OriginalityDetector

• Students: Check AI-assisted drafts before submission and see how your writing may be classified. Follow your institution's AI policies.
• Teachers and educators: Treat detection as one signal in a wider review process rather than as definitive proof of AI use.
• Editors and content teams: Add a quick AI check to editorial workflows where AI tools may be part of drafting or editing.
• Writers and marketers: Review drafts, compare versions, and flag sections that read as strongly AI-generated before publishing.

Frequently Asked Questions

What is OriginalityDetector?

OriginalityDetector is an independent, browser-based AI detector. It analyzes writing patterns in your text and returns an estimate of whether the content looks human-written or AI-generated.

Is OriginalityDetector free to use?

Yes. The detector is free, requires no signup, and places no limit on how many times you can check text. No paid plan is required.

Which AI models can it detect?

It analyzes the final text rather than one model's fingerprint, so ChatGPT, Claude, Gemini, and other large language model output can all be checked. Accuracy varies by model, prompt, and how much human editing followed.

Can a detector flag human writing as AI?

Yes. False positives happen, especially with formal academic writing, highly structured text, repetitive sentence patterns, simple vocabulary, and writing from non-native English speakers. A score is an estimate, not proof of AI use.