Detect plagiarism and AI-generated content across documents, websites, and code in 100+ languages.
Free tier (verified July 2026): Limited free scans, no subscription — catch: volume scanning needs credits
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Detect plagiarism and AI-generated content across documents, websites, and code in 100+ languages.
Free tier (verified July 2026): Limited free scans, no subscription — catch: volume scanning needs credits
How we checked: read directly from the vendor's own pricing page — source
Right prices, wrong pairing. We printed the annual price beside the monthly credit allowance, so every quoted tier promised a quarter of the credits it actually carries.
| What | What we found | Status |
|---|---|---|
| Personal | $13.99/month billed annually ($167.88/year) — 1,200 credits / 300,000 words. Paying monthly is $16.99.We had the annual price against the monthly card's allowance of 100 credits / 25,000 words, and never mentioned the monthly rate at all. | Changed since last check |
| Pro | $74.99/month billed annually ($899.88/year). Paying monthly is $99.99.Prices themselves were correct; the monthly option was missing. | Changed since last check |
Editor verification notes
Checked by the TheToolsVerse Verification Desk — by reading the vendor's own published pages, not by testing the product in an account. Copyleaks can change prices at any time without notice. The date above is the last time we looked; if it looks old, treat every figure here as unconfirmed and check Copyleaks directly before paying.
How we verify →Reviewed by Sohail Akhtar
Lead Editor & Founder
What we like
Limitations
✓ Free tier re-verified July 2026: Limited free scans, no subscription — volume scanning needs credits
| Plan | Details |
|---|---|
| Free | Limited scan volume at no cost; access to basic plagiarism and AI detection through the web interface. |
| Paid | Personal: $13.99/month billed annually ($167.88) with 1,200 unified credits — up to 300,000 words or 1,200 images — or $16.99/month paid monthly with 100 credits (25,000 words). Pro: $74.99/month billed annually ($899.88) with 12,000 credits — up to 3,000,000 words — or $99.99/month paid monthly with 1,000 credits (250,000 words). Pro adds 25 user seats, website and sitemap scanning, cross-language translation detection and the analytics dashboard. Both include AI Logic dual detection, the Google Docs add-on and the Chrome extension. |
Copyleaks offers limited free scanning with no subscription required. Read from copyleaks.com/pricing on 8 September 2026, the vendor's own summary is: Personal $16.99/month, or $13.99/month billed annually ($167.88); Pro $99.99/month, or $74.99/month billed annually ($899.88). The credit allowance depends on which of those you pick, and the two are not interchangeable — the annual Personal plan carries 1,200 unified credits (up to 300,000 words or 1,200 images) and the monthly Personal plan carries 100 (up to 25,000 words or 100 images); annual Pro carries 12,000 credits (up to 3,000,000 words) against monthly Pro's 1,000 (250,000 words). This listing previously printed the annual prices beside the monthly allowances and never mentioned the monthly rates at all. Pro also adds 25 user seats, website and sitemap scanning, cross-language detection and an analytics dashboard; both paid plans include AI Logic dual detection, the Google Docs add-on and the Chrome extension.
Quick Summary
Copyleaks is a content integrity platform that detects plagiarism and AI-generated text across documents, websites, and source code. It is used by educational institutions, publishers, and enterprise teams who need to verify content authenticity at scale. The platform supports over 100 languages for plagiarism detection and more than 30 languages for AI content identification, with both a web interface and a developer API available.
Associated Tags
plagiarism detection, AI content detection, API integration, multilingual scanning, academic integrity, content verification
Who should use Copyleaks?
Discover practical workflows and real-world scenarios where Copyleaks delivers key solutions.
Verifying academic submissions for AI-generated or copied content
Screening published articles and blog posts before live publication
Automating content integrity checks via API in a CMS or editorial workflow
Monitoring websites for content duplication or scraping
Detecting translated plagiarism across language boundaries
Evaluating freelance-submitted content for originality and AI use
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