PrePostSEO Plagiarism Checker
Ranked in Plagiarism Checkers ·No free plan on record· paid from $0.35/mo
About
PrePostSEO Plagiarism Checker checks submitted writing for copied or duplicate content and reports plagiarism and unique-content percentages alongside matched-source URLs. It compares submissions with online sources using different search engines and says it can detect incremental, patchwork, and accidental plagiarism. Users can paste text or upload .doc, .docx, .pdf, and .txt files; reports are downloadable in HTML or PDF. The checker supports multiple languages, with French, Dutch, and Spanish among the examples, and the listed language count is 20. Results link to paraphrasing, sentence rewriting, and citation-generation tools. The maker lists API integration for websites or online platforms and a WordPress plugin. Android and iOS apps, plus Windows and Mac applications, are listed. Visitors and registered basic users can check a limited amount for free; the About page states free users receive 500 search queries per month. Paid plans start at $5.25/mo (annual). The privacy policy says submitted text and files are removed after processing and are not saved or shared with third parties.
Who it is for
It suits students, teachers, researchers, writers, and bloggers who need source matches and downloadable reports. API access may suit teams integrating checks into a website or platform.
What is good
- Reports plagiarism and unique-content percentages.
- Exports reports as HTML or PDF.
- Accepts common document and text file formats.
- API integration is listed.
What to know first
- Free checks are limited.
- The free allowance is 500 search queries monthly.
- Submission limits vary by plan.
Verdict
PrePostSEO combines source matching with report exports and links to related writing tools. Review the submission limits and free-use allowance against the volume of text you need to check.
Compared on plagiarism checkers
- Free plan
- Yesprepostseo.com
- Paid from
- $5.25/moprepostseo.com
- API access
- Yesprepostseo.com
Facts
- Purpose
- The checker detects copied or duplicate content and reports the plagiarism percentage and matched sources.prepostseo.com · 4 Oct 2026
- Detection
- It compares submitted text with online sources using different search engines and says it can identify incremental, patchwork, and accidental plagiarism.prepostseo.com · 4 Oct 2026
- Input and files
- Users can paste text or upload .doc, .docx, .pdf, and .txt files for checking.prepostseo.com · 4 Oct 2026
- Reports
- The checker provides plagiarism and unique-content percentages, matched-source URLs, and downloadable HTML or PDF reports.prepostseo.com · 4 Oct 2026
- Writing tools
- The page links plagiarism results to paraphrasing, sentence rewriting, and citation-generation tools.prepostseo.com · 4 Oct 2026
- Languages
- The checker supports multiple languages, with French, Dutch, and Spanish given as examples.prepostseo.com · 4 Oct 2026
- Integrations
- The maker says its plagiarism-checker API can be integrated with a website or online platform, and it lists a WordPress plugin in its services.prepostseo.com · 4 Oct 2026
- Privacy
- The privacy policy says plagiarism-checking text and files are not saved or shared with third parties and are removed after processing.prepostseo.com · 4 Oct 2026
- Security
- The privacy policy says data in transit is protected with SSL/TLS encryption and stored data uses physical, technical, and logical security measures.prepostseo.com · 4 Oct 2026
- Mobile and desktop apps
- The checker page lists Android and iOS apps and Windows and Mac applications.prepostseo.com · 4 Oct 2026
- Free usage
- The maker says visitors and registered basic users can check limited words for free; its About page states free users get 500 search queries per month.prepostseo.com · 4 Oct 2026
- Limits
- The checker page lists 10,000 words for Basic Premium, 20,000 for Standard Premium, and 25,000 for Company Premium, while the plans page also describes word limits per submission.prepostseo.com · 4 Oct 2026
- Audience
- The maker describes the checker as suitable for students, teachers, researchers, content writers, and bloggers.prepostseo.com · 4 Oct 2026
- Support
- The pricing page includes 24/7 support with its paid plan tiers.prepostseo.com · 4 Oct 2026
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Where it ranks on Inferse
- Best Plagiarism Checkers in 2026#12 of 31
- Best AI Plagiarism Checkers in 2026#9 of 26
Sources
- prepostseo.com/plagiarism-checker· checked 4 Oct 2026
- prepostseo.com/privacy-policy· checked 4 Oct 2026
- prepostseo.com/about· checked 4 Oct 2026
- prepostseo.com/plans· checked 4 Oct 2026