Copyleaks (copyleaks.com) is an enterprise-grade content integrity platform that unifies AI content detection and plagiarism detection into a single report powered by its proprietary AI Logic technology — eliminating the need to run two separate scans and cross-reference results manually. The platform introduces a unified credit system where one credit can scan either 250 words of text or one image, providing flexibility for content teams that check both written content and visual assets. A key 2026 addition is AI Image Detection on all plans, which analyses submitted images for signs of AI generation — extending Copyleaks' integrity checking beyond text to visual content. The platform supports AI detection in 30+ languages and plagiarism detection in 100+ languages, making it one of the most linguistically comprehensive content integrity tools available.
Copyleaks' Personal plan provides 100 unified credits per month — sufficient for scanning up to 25,000 words or 100 images — alongside access to the Shared Data Hub (a proprietary database of previously scanned content for enhanced detection accuracy), browser extension with saved scans, and a Google Docs add-on. The Pro plan scales to 1,000 unified credits per month covering up to 250,000 words or 1,000 images, and adds 25 user seats for team deployment, advanced detection filters, the ability to scan entire websites, cross-language translation detection (identifying content translated between languages to evade standard similarity matching), and access to the analytics dashboard. Both plans include the AI Logic unified report — the core differentiator that combines AI generation probability and plagiarism similarity into a single structured output.
How Copyleaks Works
Users submit text, files, URLs, or images through the Copyleaks dashboard, browser extension, or Google Docs add-on. The AI Logic engine runs AI detection and plagiarism scanning simultaneously, returning a unified report with a combined integrity score, AI generation probability, similarity percentage, and matched source citations. The browser extension allows users to check content without leaving the page they are reviewing. The Google Docs add-on integrates directly into the document editor for in-workflow checking. On the Pro plan, entire website domains can be submitted for comprehensive online presence integrity auditing, and cross-language detection identifies content that has been translated between languages to avoid standard same-language similarity matching. Credits are consumed per check based on word count or image count.
Key Features
- AI Logic unified report — single report combining AI generation probability and plagiarism similarity scoring powered by Copyleaks' proprietary AI analysis
- AI Image Detection — identifies AI-generated images in submitted visual content; included on both Personal and Pro plans
- AI detection in 30+ languages — AI content identification across over 30 languages for global content integrity checking
- Plagiarism detection in 100+ languages — similarity scanning across over 100 languages for comprehensive multilingual coverage
- Shared Data Hub — proprietary database of previously scanned content enhancing detection accuracy beyond public web sources
- Unified credits — flexible credits covering 250 words or 1 image per credit; 100 credits on Personal (25,000 words or 100 images), 1,000 on Pro
- Browser extension with saved scans — check content from any web page without leaving the browser, with scan history saved
- Google Docs add-on — run plagiarism and AI detection directly within the Google Docs editor
- Cross-language translation detection — identifies content translated between languages to evade same-language similarity matching (Pro)
- Scan entire websites — submit a domain URL to audit a complete website's content for plagiarism and AI-generated material (Pro)
Copyleaks Pricing
- Personal — $16.99/month (or $13.99/month billed annually) — 100 unified credits per month: scan up to 25,000 words OR 100 images. Includes: AI Image Detection, AI Logic unified AI and plagiarism report, AI detection in 30+ languages, plagiarism detection in 100+ languages, Shared Data Hub access, scan multiple files in one upload, browser extension with saved scans, and Google Docs add-on. Cancel anytime.
- Pro — $99.99/month (or $74.99/month billed annually) — 1,000 unified credits per month: scan up to 250,000 words OR 1,000 images. Everything in Personal plus: 25 user seats, advanced detection filters, scan entire websites, cross-language translation detection, and access to the analytics dashboard. Cancel anytime.
No permanent free plan. Annual billing saves approximately 17–25%. Cancel anytime on monthly billing. Always verify current rates at copyleaks.com/pricing.
Who Should Use Copyleaks?
Copyleaks is best suited to content publishers, academic institutions, enterprise content teams, and legal or compliance professionals who need a high-accuracy, multi-language content integrity platform that combines AI detection and plagiarism checking in a single unified report. The AI Image Detection feature makes it valuable for visual content operations and social media teams verifying the authenticity of image assets. The Personal plan suits individual content professionals checking moderate monthly volumes, while the Pro plan — with 25 user seats, website scanning, cross-language detection, and the analytics dashboard — is designed for content teams, startups, and organisations managing integrity at scale. Educators and enterprise institutions looking for higher-volume or LMS-integrated solutions should enquire about Copyleaks' enterprise and educational institution plans beyond the standard Personal and Pro tiers.
Frequently Asked Questions
What is Copyleaks?
Copyleaks is an AI-powered content integrity platform that combines plagiarism detection and AI content detection into a single unified report using its AI Logic technology. It supports AI detection in 30+ languages, plagiarism detection in 100+ languages, AI image detection, a unified credit system covering both text and images, cross-language translation detection, and integrations including a browser extension and Google Docs add-on.
Does Copyleaks have a free plan?
Copyleaks does not offer a permanent free plan. Paid plans start at $16.99 per month on the Personal plan, or $13.99 per month with annual billing. Some free trial access may be available — check the current offerings at copyleaks.com.
What is a Copyleaks unified credit?
A unified credit in Copyleaks covers either 250 words of text or one image in a single check. This means the same credit pool can be used flexibly for both written content and visual asset scanning. The Personal plan includes 100 unified credits per month (up to 25,000 words or 100 images), and the Pro plan includes 1,000 unified credits per month (up to 250,000 words or 1,000 images).
What is AI Logic in Copyleaks?
AI Logic is Copyleaks' proprietary technology that analyses submitted content for both AI-generation signals and plagiarism similarity simultaneously, returning the results in a single combined report. This eliminates the need to run separate AI detection and plagiarism scans and manually reconcile the outputs, providing a unified integrity score with both dimensions of analysis in one view.
What is cross-language translation detection in Copyleaks?
Cross-language translation detection identifies content that has been translated from one language into another to evade standard same-language similarity matching. For example, if a passage is copied from an English source and translated into Spanish before submission, standard plagiarism tools may not flag the match — but Copyleaks' cross-language detection analyses semantic similarity across languages to identify translated content. This feature is available on the Pro plan.
