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PrePostSEO Plagiarism Checker

prepostseo.com

From $0.63/mo WebWindowsmacOSiOSAndroidAPI
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Spec score 7.6 #21 of 31 in Plagiarism Checkers

What it is

PrePostSEO Plagiarism Checker examines submitted writing for copied or duplicate content and reports plagiarism and unique-content percentages, along with URLs for matched sources. It compares text with online sources using different search engines and says it can identify incremental, patchwork, and accidental plagiarism. Users can paste text or upload.doc,.docx,.pdf, and.txt files, then download reports in HTML or PDF. The checker supports multiple languages, with French, Dutch, and Spanish among the examples. Results link to paraphrasing, sentence rewriting, and citation-generation tools. The maker offers API integration for websites or online platforms and lists a WordPress plugin. Android and iOS apps and Windows and Mac applications are listed. Visitors and registered basic users can check a limited amount for free; the maker describes free users as receiving 500 search queries per month. Paid checker plans start at $5.25 per month when billed annually. The privacy policy says submitted text and files are removed after processing and are not saved or shared with third parties.

Spec sheet

Purpose
The checker detects copied or duplicate content and reports the plagiarism percentage and matched sources.Read 4 Oct 2026 · prepostseo.com
Audience
The maker describes the checker as suitable for students, teachers, researchers, content writers, and bloggers.Read 4 Oct 2026 · prepostseo.com
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.Read 4 Oct 2026 · prepostseo.com
Security
The privacy policy says data in transit is protected with SSL/TLS encryption and stored data uses physical, technical, and logical security measures.Read 4 Oct 2026 · prepostseo.com
Privacy
The privacy policy says plagiarism-checking text and files are not saved or shared with third parties and are removed after processing.Read 4 Oct 2026 · prepostseo.com
Support
The pricing page includes 24/7 support with its paid plan tiers.Read 4 Oct 2026 · prepostseo.com
Detection
It compares submitted text with online sources using different search engines and says it can identify incremental, patchwork, and accidental plagiarism.Read 4 Oct 2026 · prepostseo.com
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.Read 4 Oct 2026 · prepostseo.com
Input and files
Users can paste text or upload .doc, .docx, .pdf, and .txt files for checking.Read 4 Oct 2026 · prepostseo.com
Languages
The checker supports multiple languages, with French, Dutch, and Spanish given as examples.Read 4 Oct 2026 · prepostseo.com
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.Read 4 Oct 2026 · prepostseo.com
Mobile and desktop apps
The checker page lists Android and iOS apps and Windows and Mac applications.Read 4 Oct 2026 · prepostseo.com
Reports
The checker provides plagiarism and unique-content percentages, matched-source URLs, and downloadable HTML or PDF reports.Read 4 Oct 2026 · prepostseo.com
Writing tools
The page links plagiarism results to paraphrasing, sentence rewriting, and citation-generation tools.Read 4 Oct 2026 · prepostseo.com

Plans and prices

Monthly (plagiarism checker) $7 a month billed monthly 2.5K words per submission · 10K submissions · unlock all modes · no ads · no captcha Read 4 Oct 2026 · prepostseo.com
Basic (plagiarism checker) $7.50 a year $81 billed annually 10K words per submission · 60K sentences · approximate 420K words · approximate 1525 pages · deep search · no ads or captcha · 24/7 support Read 4 Oct 2026 · prepostseo.com
Basic (all-in-one, annual billing) $50 a year $50 billed annually 5K words per submission · 50K search queries · 150K Humanizer 2.0 queries · plagiarism checker · deep search · 24/7 support Read 4 Oct 2026 · prepostseo.com
Yearly (plagiarism checker) $63 a year $63 billed annually 2.5K words per submission · 125K submissions · unlock all modes · no ads · no captcha Read 4 Oct 2026 · prepostseo.com
Standard (plagiarism checker) $100 a year $100 billed annually 20K words per submission · 120K sentences · approximate 840K words · approximate 3050 pages · deep search · no ads or captcha · 24/7 support Read 4 Oct 2026 · prepostseo.com
Standard (all-in-one, annual billing) $150 a year $150 billed annually 15K words per submission · 200K search queries · 450K Humanizer 2.0 queries · plagiarism checker · deep search · 24/7 support Read 4 Oct 2026 · prepostseo.com
Business (plagiarism checker) $183.60 a year $183.6 billed annually 25K words per submission · 300K sentences · approximate 2.1M words · approximate 7630 pages · deep search · no ads or captcha · 24/7 support Read 4 Oct 2026 · prepostseo.com
Company (all-in-one, annual billing) $350 a year $350 billed annually 25K words per submission · 500K search queries · 1.05M Humanizer 2.0 queries · plagiarism checker · deep search · 24/7 support Read 4 Oct 2026 · prepostseo.com

Every PrePostSEO Plagiarism Checker plan and price →

Strong points and limits

Strong points

  • Reports plagiarism and unique-content percentages.
  • Accepts text and four listed file formats.
  • Reports can be downloaded as HTML or PDF.
  • Submitted text and files are removed after processing.
  • Apps are listed for mobile and desktop.

Limits

  • Free users have a limited checking allowance.
  • Submission word limits vary by plan.
  • Paid checker plans start at $5.25 per month billed annually.

Who it suits

The checker suits students, teachers, researchers, content writers, and bloggers who want source matches and downloadable reports. API access may suit teams integrating checks into a website or online platform.

Verdict

PrePostSEO combines source matching with reports and links to related writing tools. Check the submission limits and billing term for the paid plan that fits your workload.

Where Specifiction places it

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