Copyscape vs PlagAware
Copyscape
copyscape.com
PlagAware
plagaware.comSide by side
| Figure | Copyscape | PlagAware |
|---|---|---|
| Price from | $4.95/mo | €2.99/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 5 | 19 |
| Spec score · Plagiarism Checkers | 9.2 (#2) | 8.8 (#7) |
| Spec score · AI Plagiarism Checkers | 9.2 (#2) | 8.9 (#6) |
| API | The Premium API supports automated URL, text, AI-detector and private-index operations with JSON, XML or HTML responses. | The public HTTP POST API accepts text or file submissions, callback URL, language, project and external IDs, library options and dry-run mode. |
| Headquarters | Crunchbase lists Copyscape in Tel Aviv, Israel. | Neu-Ulm, Germany |
| Purpose | Copyscape checks web content and new human- or AI-generated content for plagiarism and duplicate text found online. | PlagAware is a plagiarism search engine for educational institutions, businesses and individuals. |
| What it does | Copyscape searches online content for matching or copied text and supports originality checking for human- and AI-generated material. | PlagAware checks submitted texts for plagiarism and continuously monitors texts or web pages for possible content theft. |
Plans
Copyscape
- Free CopyscapeFree
- Copyscape Premium$0.03, paid once
- Copysentry Weekly protection$4.95 a month
- Copysentry Premium daily protection$19.95 a month
- Copyscape EnterprisePriced on request
PlagAware
- Subscription FreeFree
- Light€2.99 a month
- Subscription Light€2.99 a month
- Standard€12.49 a month
- Subscription Standard€12.49 a month
- PrePaid Package S€12.90, paid once
- PrePaid Package S€12.99, paid once
- PrePaid Package M€24.90, paid once
- PrePaid Package M€24.99, paid once
- PrePaid Package L€39.90, paid once
In their own words
Copyscape
Copyscape checks web pages and newly written human- or AI-generated content for plagiarism and duplicate text found online. Its free checker scans a URL and presents a word-by-word comparison of results, but shows no more than 10 search results and limits scans per website. Premium accepts pasted text as well as PDF and Word uploads for originality checks. Its Batch Search can process up to 10,000 pages in one operation, with each page billed like a regular search. The Premium API can automate plagiarism and AI checks and return results in JSON, XML, or HTML; a WordPress plugin supports checks in a WordPress workflow. Premium users can create a private index of their own content, accessible only through their Copyscape account. Copysentry monitors selected pages daily or weekly and emails alerts when it finds copies. Enterprise can be hosted on-premises or in a private cloud. Copyscape says it uses Google for search and then processes results with proprietary algorithms. It warns that AI detector results may misclassify human or AI text and should not be the sole basis for disciplinary action.
PlagAware
PlagAware is a plagiarism search engine for educational institutions, businesses, and individuals. Its FullScan technology checks submitted text against more than 70 billion online documents and user-provided comparison texts, while text monitoring can flag potential copying or duplication on texts and web pages. An AI detector looks for stereotypical language associated with systems such as ChatGPT, Copilot, Gemini, and LLaMA; PlagAware says it does not send data to those external providers. Reports can be edited interactively, downloaded as PDFs, and shared through permanent links. Users can paste text, upload TXT, RTF, HTML, DOC, DOCX, ODT, and PDF files, or submit through the API. The web application works in supported modern browsers without workstation installation and offers integrations for Moodle, SharePoint, Joomla, WordPress, and Blogger. It accepts texts up to 750,000 characters, files up to 15 MB, and up to 50 parallel uploads. A significant coverage limit is that it does not access non-public sources such as paid scientific journal articles or paid portal content. Plans include free use, subscriptions, and prepaid credits; Subscription Light is €2.99/month with a six-month minimum term.