What is Copyleaks?
Copyleaks is a content authenticity platform that checks text, images, and video to determine whether they were written or generated by AI and whether they copy existing material. It combines an AI detector, a plagiarism checker that searches websites, journals, documents, and code repositories, and tools for moderation and grammar.
In practice you upload a file, paste text, or connect the platform through a browser extension, Google Docs add-on, LMS, WordPress, or API. The report flags AI-written passages and matched sources, including paraphrased or translated copies. Teachers, editors, developers, and compliance teams use it to review submissions, check training data, and monitor whether large language models such as ChatGPT or Gemini have used their content.
Key features
- AI text detection covering ChatGPT, Gemini, DeepSeek and Claude
- Plagiarism checker with search across websites, journals, and internal documents
- AI image and AI video detection
- Browser extension for Chrome, Edge, and Firefox
- Google Docs add-on and LMS integration
- API integration for enterprise workflows
Who is it for
- Schools and universities
- Editors and publishers
- Enterprise compliance teams
- Software developers and AI model trainers
How to get started with Copyleaks
- Go to the Copyleaks website and choose Start for Free
- Upload a file with your text or paste the content directly
- Review the report combining AI detection and plagiarism results
- You check student work for AI-written text and plagiarism
- You need to scan entire websites through their sitemap
- You want to integrate content checks into an LMS, WordPress, or your own process via API
- You need a Polish-language interface, as the site does not offer one
- You want a fully free tool without limits, since the free plan is restricted
Pros and cons
- Covers text, image, and video detection in one platform
- Detects paraphrasing, character manipulation, and translated plagiarism
- Supports over 30 languages for AI detection
- Accuracy rating of 99% is based on internal testing of English datasets
- Advanced features and additional seats require higher-tier plans
Copyleaks pricing
| Plan | Price | Includes |
|---|---|---|
| Personal | 13.99 USD / month | 1,200 unified credits, up to 300,000 words or 1,200 images per year; billed annually at 167.88 USD |
| Pro | 74.99 USD / month | Includes 25 user seats, advanced filters, website scanning, analytics dashboard, 12,000 unified credits; billed annually at 899.88 USD |
| Personal (monthly) | 16.99 USD / month | 100 unified credits, up to 25,000 words or 100 images |
| Pro (monthly) | 99.99 USD / month | Includes 25 user seats and 1,000 unified credits, up to 250,000 words |
Prices copied from Copyleaks pricing, checked October 12, 2026. Currency as shown by the vendor; taxes may apply.
Is Copyleaks free?
There is a free trial. Free start for students (Start for Free / Start now for free); scan credits are limited on the individual plans.
Copyleaks alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 GPTZero | not listed | yes | AI detectors |
 ZeroGPT | not listed | yes | AI detectors |
 Turnitin | not listed | ? | AI detectors |
 Undetectable AI | 5.00 USD/mo | trial | AI detectors |
 Originality.ai | 12.95 USD/mo | yes | AI detectors |
 Pangram | 20 USD/mo | trial | AI detectors |
All alternatives to Copyleaks →
Comparisons
FAQ
What is Copyleaks used for?
Detects AI-generated and plagiarized text, images, and video, mainly for schools, publishers, and enterprises protecting content and IP.
Is Copyleaks free?
There is a free trial. Free start for students (Start for Free / Start now for free); scan credits are limited on the individual plans.
How much does Copyleaks cost?
The cheapest paid plan is 13.99 USD/mo (vendor pricing, October 12, 2026).
What are the best Copyleaks alternatives?
Closest alternatives: GPTZero, ZeroGPT, Turnitin, Undetectable AI, Originality.ai.
Data checked October 12, 2026 on the vendor website (copyleaks.com).