Plagiarism Detector
Verified working Sep 22, 2026
A multilingual plagiarism checker for text, file, and URL scans.
Plagiarism Detector is a browser-based tool for checking whether writing overlaps with existing online content. Users can paste text, upload a document, or check by URL, with results intended to show copied material and a percentage-based originality report. The site also connects the workflow to related writing tools such as grammar checking, AI-content detection, paraphrasing, and summarization.
Why it stands out
- Supports multiple input methods rather than only pasted text.
- Offers plagiarism, AI-content, and grammar checks from the same writing-tool hub.
- Lists support for many languages, making it broader than English-only checkers.
- Paid plans expose usage quotas in words/pages, which helps users estimate volume needs.
Good to know
- The visible free checker input is capped at 1,000 words at a time.
- Higher-volume checking, deeper reports, ad-free use, and multiple-file support are positioned as Pro features.
- Paid plans use page and word quotas, so heavy users need to monitor monthly limits.
Photos
Students and educators can quickly screen assignments or essays for copied passages before submission or grading. Website owners can check draft pages for duplicate content before publishing. Freelance writers and editors can verify client work against online sources. Multilingual users can run plagiarism checks in several supported interface/language options.
Paste-in plagiarism checker with word and character counts; file and URL-based checking; percentage-style results; multilingual support; related tools for AI detection, grammar checking, paraphrasing, text comparison, summarizing, and article rewriting; paid tiers with larger quotas, additional seats, deeper checks, and API access.
Technical Notes
- Paid plans list API access, but the extracted page does not show public documentation, authentication details, or rate limits.
Alternative listings
Checks essays for copied text while flagging writing and citation issues.
Writing & Content Creation ToolsGrammarly’s plagiarism checker lets users paste or upload a document and scan it for potential copied passages. It pairs originality checking with Grammarly’s broader writing feedback, including grammar, readability, word choice, citation formatting, and AI-use disclosure guidance.
0 votesVisit siteChecks writing for reused passages and points to matching sources.
Writing & Content Creation ToolsSmallSEOTools Plagiarism Checker is a web-based originality scanner for essays, articles, assignments, and other written work. Users can paste text, upload common document formats, or scan a URL, then review similarity scores, matched source links, and sentence-level flags.
0 votesVisit site
Similar sites elsewhere
- Quetext — quetext.com
- Copyscape — copyscape.com
- Grammarly Plagiarism Checker — grammarly.com/plagiarism-checker
- Duplichecker — duplichecker.com
1 of 5