Noplag vs PlagAware
Noplag
noplag.com
PlagAware
plagaware.comSide by side
| Figure | Noplag | PlagAware |
|---|---|---|
| Price from | $9.99/mo | €2.99/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 4 | 19 |
| Spec score · Plagiarism Checkers | 9.2 (#3) | 8.8 (#7) |
| Spec score · AI Plagiarism Checkers | 9.2 (#3) | 8.9 (#6) |
| AI detection | AI-content detection is marked as coming soon and is intended to appear as a separate signal. | An AI detector for ChatGPT, Gemini and LLaMA-style writing plus readability analysis is included in plagiarism checks. |
| API | The developer API is REST with an OpenAPI spec and webhooks, and is available on paid tiers. | The public HTTP POST API accepts text or file submissions, callback URL, language, project and external IDs, library options and dry-run mode. |
| Headquarters | San Francisco, United States | Neu-Ulm, Germany |
| Integrations | The features page lists Canvas, Moodle, Blackboard, and Brightspace integrations via LTI 1.3. | Official pages describe Moodle integration and possible integrations with SharePoint, Joomla, WordPress and Blogger. |
| Security | Noplag says it encrypts data in transit and at rest and does not yet hold formal attestations such as SOC 2. | The company states that data transmission uses AES-256 encryption and that servers use intrusion detection, network firewalls and application firewalls. |
| Self-hosting | The detection engine can be run with Docker on private infrastructure and has its own API without hosted-service keys. | PlagAware is delivered as a hosted web application; the Moodle library synchronizer requires helper software installed on the customer’s Moodle server. |
| System requirements | The desktop application is currently documented as available for macOS on Apple silicon; Windows and Linux builds are planned in that help page. | No workstation installation is required; supported browsers listed include Edge, Firefox, Opera, Safari, Chrome and Internet Explorer 9+. |
| What it does | Noplag checks submitted text or files for plagiarism and returns similarity scores, highlighted overlaps and source links. | PlagAware checks submitted texts for plagiarism and continuously monitors texts or web pages for possible content theft. |
Plans
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
Noplag
Noplag is an open-source plagiarism checker with a hosted cloud service and an engine released under Apache 2.0. Its current matching uses winnowing fingerprints and live-web comparison to find verbatim and near-verbatim copying; it does not detect paraphrase. Sources include the open web, Common Crawl, Wikipedia, academic indexes, the Noplag Database and users’ own folders. Submit DOCX, PDF, TXT, ODT or RTF files, paste text or provide a URL. Reports link matches to their sources, display similarity scores and exact overlapping text, and can be exported as PDFs. Detection is calibrated at launch for English, Spanish, Portuguese, Polish and Ukrainian. AI-content detection is marked as coming soon and intended as a separate signal. The free plan allows three checks per month, up to 2,500 words per check, with community Discord support. Pro costs $9.99 a month and includes 50 monthly checks, up to 25,000 words per check, database and academic-index matching, REST API and webhooks, and email support. A 14-day trial is listed.
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.