How much does Copyleaks cost?

Copyleaks's paid plans: Personal (annual): $13.99/month ($167.88 billed annually); Pro (annual): $74.99/month ($899.88 billed annually); Personal (monthly): $16.99/month; Pro (monthly): $99.99/month. Prices were taken from the official pricing page; check it for the current offer.

What is Copyleaks best for?

People use Copyleaks for checking student submissions for AI use and plagiarism, screening freelance and agency content before publishing, governing generative AI use within a company, verifying whether images are AI-generated.

Which platforms does Copyleaks support?

Copyleaks is available on API, Chrome Extension, Edge Extension, Firefox extension, Google Docs add-on, Web.

What are some alternatives to Copyleaks?

Similar tools include Phrasly, Winston AI, GPTZero, Originality.ai. See the Alternatives section to compare them.

Copyleaks

Copyleaks detects AI-generated text and plagiarism in one report, with AI image detection, LMS integrations and an API, for educators, publishers, businesses and individual writers.

What is Copyleaks?

Copyleaks is an AI-based content integrity platform that detects AI-generated text and plagiarism, and has expanded to AI image, audio and video detection. It is used by schools and universities to support academic integrity, by publishers and businesses to protect intellectual property and govern generative AI use, and by individuals who want to check their own writing before submitting it. Detection is available through a web app, browser extensions, a Google Docs add-on, LMS integrations and an API.

Key Features of Copyleaks

AI Text Detection

Copyleaks flags text likely written by models such as ChatGPT, Gemini, DeepSeek and Claude in more than 30 languages. It reports over 99% accuracy based on its own internal testing of English datasets.

Plagiarism Checker

Plagiarism scans cover over 100 languages and are designed to catch paraphrasing, character manipulation and text inside images, comparing against web pages, open-access journals, code repositories and a shared document library.

AI Image and Video Detection

The image detector highlights areas likely generated or edited by AI, with support for models from OpenAI, Google, Midjourney, Stability AI and Black Forest Labs. A video detector is also offered for enterprise use.

Code Plagiarism and GenAI Governance

Businesses can check source code for unlicensed reuse, monitor generative AI usage across the organisation, and see where large language models may have used their content.

Integrations

Copyleaks connects with Canvas, Moodle, D2L Brightspace, Schoology, Sakai, Edsby and Blackboard, and offers a REST API, browser extensions for Chrome, Edge and Firefox, and a Google Docs add-on.

Security and Compliance

The company lists PCI DSS, SOC 2, SOC 3 and GDPR certifications, along with regional and private-cloud hosting options for enterprise customers.

Copyleaks Pricing

Copyleaks offers Personal and Pro subscriptions for individuals and small teams, plus custom Enterprise and Education plans. One credit covers up to 250 words or one image, and extra credits can be bought at any time. Yearly billing saves up to 25%.

Prices checked on October 27, 2026; check the official pricing page for current plans.

Who Should Use Copyleaks?

Copyleaks is a strong fit for educators and institutions that want AI and plagiarism detection inside their existing LMS, for publishers and content teams checking freelance or agency submissions, and for companies that need policies and oversight around generative AI. Developers can use the API to add detection to their own platforms. Students and writers can use the Personal plan to review their own drafts before submission.

Is Copyleaks Worth It?

Copyleaks combines AI detection, plagiarism checking and image detection in one report, supports many languages and integrates widely, which makes it one of the more complete content integrity tools available. The Personal annual plan is affordable for individual use.

Keep its limits in mind. AI detection is probabilistic and can produce false positives, so results should support a human judgment rather than replace it, especially in academic misconduct cases. The headline accuracy figure comes from the vendor's own testing, credits run out quickly on long documents with the monthly Personal plan, and the most advanced features sit behind custom enterprise pricing.