ContentDetector.org

Free#15 of 25 in AI Content Detectors

ContentDetector.org: A free detector with broad scanning options, section highlights, and API connectivity. Ranked #15 of 25 in AI Content Detectors by our editors (7.6/10); pricing: Free plan; best for free bulk and URL screening.

7.6/10★★★★☆Editor score

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At a glance

• Editor score
  7.6 / 10
• Pricing
  Free plan
• Best for
  Free bulk and URL screening
• Free plan
  Yes
• Paid from
  Free
• Facts checked
  21 Sep 2026

• Where it wins

  • Free AI-versus-human scoring with highlighted sections
  • Scans text, files, URLs, folders, and URL lists
  • Web, desktop, iOS, Chrome, and API access

• Where it doesn't

  • Scores indicate detected patterns rather than definitive authorship
  • AI-to-human rewriting adds a separate transformation step
  • Bulk API access is focused on checking content

Our verdict on ContentDetector.org

ContentDetector.org is a free AI content detector for educators, editors, marketers, publishers, agencies, and content teams. It accepts pasted text, uploaded files, and URLs, then provides an AI-versus-human score with section-by-section highlights. The service evaluates patterns associated with major AI models, including GPT, Gemini, and Claude, and is available through web, Windows, macOS, iOS, Chrome, and API interfaces.

Its strongest advantage is breadth within a free screening workflow. Users can preserve headings, lists, citations, and links while scanning content, and bulk checks can use document uploads, folders, or URL lists. That makes the product suitable for teams reviewing multiple pieces of content rather than only checking individual passages. API connectivity extends bulk-checking workflows, while the browser, desktop, and mobile options support different working environments.

ContentDetector.org also includes AI-to-human text rewriting, but that function should be treated as a separate editing step from detection. The core output remains a score and highlighted sections, so it is better suited to screening and review than to making final authorship decisions on its own. Choose it if free text, file, URL, and bulk screening matter across a broad platform set. Consider another option if your workflow depends on capabilities beyond detection and rewriting, or on a more specialized review process.

Your product? Our editors can test ContentDetector.org in depth and publish a review, labelled as paid · from $149/mo →

ContentDetector.org pricing

ContentDetector.org fact sheet

Alternatives to ContentDetector.org

• Originality.aiA broad verification platform with AI detection, plagiarism checks, and workflow integrations.9.4
• GPTZeroA broad detection and verification toolkit for education workflows.9.2
• Copyleaks AI DetectorA broad AI and plagiarism detector with strong education integrations and API access.9.0

See all ContentDetector.org alternatives →

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used ContentDetector.org for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update