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Pricing: Free
Verified: Yes
Editor rating: 4.2/5
Updated: October 2026

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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Verified by our team
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Pricing & free tier — last checked

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.

WhatWhat we foundStatus
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

  • The prices were all confirmed, which is why no price-consistency or arithmetic guard fired. The defect was in which number sat next to which — a pairing error, invisible to a scanner that checks each field against itself.

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 →

Editor's Verdict

Official Review
Copyleaks is a well-established content verification platform with strong language support and a dual-detection approach that covers both plagiarism and AI-generated content in one scan. The pricing structure favors organizations with consistent high-volume scanning needs, as the free and Personal tiers offer relatively limited credit allocations.
4.2 / 5.0
Editor Rating

Reviewed by Sohail Akhtar

Lead Editor & Founder

Pros

What we like

  • Handles both traditional plagiarism and AI-generated content detection in one unified scan
  • Broad language support makes it viable for international and multilingual content operations
  • Real-time API enables seamless integration into existing editorial or publishing workflows

Cons

Limitations

  • The jump from Personal to Pro is steep for small teams — $13.99 to $74.99 a month on annual billing, or $16.99 to $99.99 month to month
  • The free tier is limited in practical scan volume, making thorough pre-purchase evaluation difficult

Pricing

✓ Free tier re-verified July 2026: Limited free scans, no subscription — volume scanning needs credits

PlanDetails
FreeLimited scan volume at no cost; access to basic plagiarism and AI detection through the web interface.
PaidPersonal: $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.

What is Copyleaks?

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.

Copyleaks is a content scanning platform that identifies plagiarism and AI-generated text within a single unified report through its AI Logic feature. The system compares submitted content against its own database of user-submitted documents, live web content, and academic sources to surface text similarities. For AI detection, it uses trained models capable of identifying content generated by tools such as ChatGPT, Claude, and other large language models. Scans can be submitted through the browser-based interface, a Google Docs add-on, a Chrome extension, or via the API for automated pipeline integration. The platform supports plagiarism detection in over 100 languages and AI detection in over 30 languages. See similar solutions. Copyleaks is used across education, publishing, marketing, and software development. Universities and training providers use it to verify academic submissions, while content teams use it to screen articles, blog posts, and web copy before publication. The Pro plan supports full website scanning by URL entry, which is useful for publishers monitoring for content duplication across domains. Developers integrate the real-time scanning API into content management systems and editorial platforms to automate quality checks at volume. The cross-language translation detection feature in the Pro plan identifies content that has been plagiarized and then translated into another language — an increasingly common evasion method Read our guide.
Read the full overview
Copyleaks offers a meaningful combination of traditional plagiarism detection and modern AI content identification, which positions it well for organizations managing both concerns simultaneously. The Personal plan at $13.99 per month provides 100 scan credits covering up to 25,000 words monthly, while the Pro plan at $74.99 per month increases this to 1,000 credits and 250,000 words with added features including website scanning, an analytics dashboard, and priority support. See similar solutions. The pricing gap between Personal and Pro is significant for small teams, and the free tier is limited in practical scan volume, which can make it difficult to evaluate the tool's accuracy before committing to a subscription Read our guide.

Associated Tags

plagiarism detection, AI content detection, API integration, multilingual scanning, academic integrity, content verification

Key Features

Dual AI and plagiarism detection in a single report
AI content detection in 30+ languages
Plagiarism scanning in 100+ languages
Full website scanning by URL entry
Cross-language translation plagiarism detection
Real-time API for enterprise pipeline integration
Google Docs add-on and Chrome extension support

Target Audience

Who should use Copyleaks?

Educators and academic institutionsContent publishers and editorial teamsMarketing agencies managing content at scaleDevelopers building content integrity into platformsEnterprise teams with bulk scanning requirements
Real Use Cases

How professionals leverage Copyleaks Plagiarism and AI Content Detector

Discover practical workflows and real-world scenarios where Copyleaks delivers key solutions.

01

Verifying academic submissions for AI-generated or copied content

02

Screening published articles and blog posts before live publication

03

Automating content integrity checks via API in a CMS or editorial workflow

04

Monitoring websites for content duplication or scraping

05

Detecting translated plagiarism across language boundaries

06

Evaluating freelance-submitted content for originality and AI use

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Frequently Asked Questions

What is Copyleaks?
Copyleaks is a content scanning platform that detects both plagiarism and AI-generated text in documents, websites, and source code, supporting over 100 languages for plagiarism and 30+ for AI detection.
Can Copyleaks detect AI-generated content?
Yes, Copyleaks detects AI-generated text using its AI Logic feature, which identifies content produced by large language models such as ChatGPT, Claude, and others, and reports it alongside plagiarism findings in a single scan.
How much does Copyleaks cost?
There is a free tier with limited scans. Personal is $16.99 a month, or $13.99 a month if you pay for a year ($167.88); Pro is $99.99 a month, or $74.99 billed annually ($899.88). Credits follow the billing period rather than the plan name — annual Personal carries 1,200 credits and monthly Personal 100 — so check which column you are reading before comparing.
Does Copyleaks have an API?
Yes, Copyleaks offers a real-time scanning API available on paid plans, which allows developers to integrate plagiarism and AI content detection directly into their applications or content workflows.
What languages does Copyleaks support?
Copyleaks supports plagiarism detection in over 100 languages and AI-generated content detection in more than 30 languages.
Is Copyleaks suitable for academic use?
Yes, Copyleaks is widely used by educational institutions to check student submissions for both copied content and AI-generated text, and it integrates with tools like Google Docs for classroom workflows.