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PrePostSEO Plagiarism Checker
What PrePostSEO Plagiarism Checker is
PrePostSEO Plagiarism Checker compares submitted writing with online sources and reports plagiarism and unique-content percentages alongside matched-source URLs. It says it can identify incremental, patchwork and accidental plagiarism. Users can paste text or upload .doc, .docx, .pdf or .txt files; reports are downloadable in HTML or PDF. The checker supports 20 languages, with French, Dutch and Spanish among the examples provided. Results link to paraphrasing, sentence rewriting and citation-generation tools. The maker offers an API for integration with a website or online platform and lists a WordPress plugin. Android and iOS apps, Windows and Mac applications, and web access are listed. Visitors and registered basic users can check a limited amount for free; the maker says free users get 500 search queries per month. Paid plans start at $5.25/mo (annual). Submission limits vary by plan, with listed tiers ranging from 2.5K to 25K words per submission. The privacy policy says submitted text and files are removed after processing and are not saved or shared with third parties.
Who it suits
The checker suits students, teachers, researchers, content writers and bloggers who want to review writing against online sources. Website operators may also consider it for integration through the API or WordPress plugin.
What it does well
- Reports matched-source URLs and content percentages
- Accepts pasted text and four file formats
- Exports reports as HTML or PDF
- Supports 20 languages
- Submitted files are removed after processing
What to know first
- Free checks are limited
- Submission limits vary by plan
- Paid plans start at $5.25/mo (annual)
Limits
Visitors and registered basic users can check a limited amount for free; the maker says free users receive 500 search queries per month. Checker plans list per-submission limits from 2.5K words on the Yearly and Monthly plans to 25K on the Business and Company plans. The yearly plan listed at $5.25 per year (billed $63 annually) allows 2.5K words per submission.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Standard (plagiarism checker) | $100 billed annually · 20K words per submission · 120K sentences · approximate 840K words · approximate 3050 pages · deep search · no ads or captcha · 24/7 support | $100 a year |
| Standard (all-in-one, annual billing) | $150 billed annually · 15K words per submission · 200K search queries · 450K Humanizer 2.0 queries · plagiarism checker · deep search · 24/7 support | $150 a year |
| Business (plagiarism checker) | $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 | $183.60 a year |
| Company (all-in-one, annual billing) | $350 billed annually · 25K words per submission · 500K search queries · 1.05M Humanizer 2.0 queries · plagiarism checker · deep search · 24/7 support | $350 a year |
| Basic (all-in-one, annual billing) | $50 billed annually · 5K words per submission · 50K search queries · 150K Humanizer 2.0 queries · plagiarism checker · deep search · 24/7 support | $50 a year |
| Yearly (plagiarism checker) | $63 billed annually · 2.5K words per submission · 125K submissions · unlock all modes · no ads · no captcha | $63 a year |
| Monthly (plagiarism checker) | billed monthly · 2.5K words per submission · 10K submissions · unlock all modes · no ads · no captcha | $7 a month |
| Basic (plagiarism checker) | $81 billed annually · 10K words per submission · 60K sentences · approximate 420K words · approximate 1525 pages · deep search · no ads or captcha · 24/7 support | $7.50 a year |
As prepostseo.com lists them, read 4 Oct 2026. The maker's own page has the final word.
Getting started
- Open https://www.prepostseo.com/plagiarism-checker in a browser, or use a listed Android, iOS, Windows, or Mac application.
- Paste text into the checker or upload a .doc, .docx, .pdf, or .txt file.
- Run the check and review the plagiarism percentage, unique-content percentage, and matched-source URLs.
- Download the results as an HTML or PDF report if needed.
- For recurring or larger usage, review the free allowance and paid plan submission limits.
Verdict
PrePostSEO offers several ways to submit text and review matched sources, with downloadable reports and linked writing tools. Free use is limited, and the paid plans have differing submission limits.
Questions
Is PrePostSEO Plagiarism Checker free?
Yes. Visitors and registered basic users can check a limited amount for free. The maker says free users receive 500 search queries per month.
What does the checker cost?
Paid plans start at $5.25 per year (billed $63 annually) for the Yearly plagiarism-checker plan. A Monthly plagiarism-checker plan is listed at $7.00 per month.
Which platforms are available?
The checker lists web, Android, iOS, Windows, and Mac access. An API is also available.
What files and report formats does it support?
Users can paste text or upload .doc, .docx, .pdf, and .txt files. Downloadable reports are available in HTML and PDF.
Can it be integrated with a website?
Yes. PrePostSEO says its plagiarism-checker API can be integrated with a website or online platform, and it lists a WordPress plugin among its services.
What does the privacy policy say about submissions?
It says checking text and files are removed after processing and are not saved or shared with third parties. It also describes SSL/TLS encryption for data in transit.
Facts from PrePostSEO Plagiarism Checker's own pages
- Audience
- The maker describes the checker as suitable for students, teachers, researchers, content writers, and bloggers. · 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
- 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
- Input and files
- Users can paste text or upload .doc, .docx, .pdf, and .txt files for checking. · 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
- Languages
- The checker supports multiple languages, with French, Dutch, and Spanish given as examples. · 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
- Mobile and desktop apps
- The checker page lists Android and iOS apps and Windows and Mac applications. · 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
- Purpose
- The checker detects copied or duplicate content and reports the plagiarism percentage and matched sources. · 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
- 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
- Support
- The pricing page includes 24/7 support with its paid plan tiers. · 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
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