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About Copyleaks
Copyleaks detects plagiarism and AI-generated content. It started with text and now covers code, images, audio and video, and its AI video detection feature has recently launched. Its uses include academic integrity checks, IP and copyright compliance, code plagiarism checking and governance of generative AI use in organisations.
The service mainly targets universities, publishers and companies, and the homepage directs visitors to request a demo. Documentation and release notes are published for developers who integrate its detection through an API.
Strengths
- Detects both plagiarism and AI-generated text
- Checks source code for plagiarism
- Covers video, audio and images as well as text
- Documented API for integration
Limitations
- Aimed mainly at institutions and businesses
- AI detection results are probabilistic and can be wrong
Details
- Pricing
- PaidA commercial service; the homepage directs organisations to request a demo.
- License
- Proprietary
- Developer
- Copyleaks
- Platforms
- Web
- How it runs
- Hosted service
- Account
- Required
- Works offline
- No
- Best suited for
- Schools and organisations checking content for plagiarism and AI use
- Categories
- AI writing
- Last verified
- Added
- Sources
Alternatives to Copyleaks
Compare allSoftware that can replace Copyleaks for an important use case, and what changes if you switch.
Originality.ai
An AI text detector and plagiarism checker for publishers and content teams, with browser extensions.
Originality.ai adds readability and fact checks, writing replay and Chrome and Firefox extensions, and it has a limited free tier, but it does not check source code or media.
GPTZero
An AI content detector that estimates whether text was written by ChatGPT, Claude, Gemini or other models.
GPTZero offers sentence-level AI highlighting, Google Docs writing replay and a Chrome extension with a freemium plan, though it does not cover code, video or audio.
Winston AI
An online AI content detector and plagiarism checker for text from ChatGPT, Claude, Gemini and other models.
Winston AI combines AI detection and plagiarism checking with a free start without a credit card, and it has separate workflows for education, SEO and writers.
Quetext
A web plagiarism checker and AI detector with grammar, summarizing and citation tools.
Quetext pairs plagiarism and AI detection with a citation generator, grammar checker, Chrome extension and REST API, on a freemium plan aimed at students and teachers.
ZeroGPT
A web tool that estimates whether text was written by AI, with extra writing utilities.
ZeroGPT is a free browser tool for AI detection that also checks images and video, but it does not advertise plagiarism checking or code scanning.
Smodin
An online AI writing toolkit with an AI detector, humanizer, plagiarism checker and rewriting tools.
Smodin bundles an AI detector and plagiarism checker with rewriting and humanizer tools, and it can be tried without an account, though full use is paid.
Similar software
Related functionality, not necessarily a direct replacement.
Grammarly
An AI writing assistant that checks grammar and spelling and suggests rewrites and tone changes.
Paperpal
An AI academic writing tool with grammar checks, citations, paraphrasing and journal submission checks.
Trinka
An AI grammar checker and writing assistant aimed at academic and technical writing.
