Skip to content
SPECIFICTION
Get listed

Check-Plagiarism

check-plagiarism.com

From $4.17/mo WebAndroidAPI
Visit check-plagiarism.com
Spec score 8.7 #7 of 26 in AI Plagiarism Checkers

What it is

Check-Plagiarism is a plagiarism-checking service for students, teachers, researchers, content creators, and digital publishers. It accepts pasted or typed text and DOC, DOCX, TXT, or PDF uploads, with a listed maximum of 7,000 words per document. The checker reports duplicated passages, sentence-level matches, similarity percentages, and matching sources. Its AI is described as detecting paraphrased or lightly edited text as well as exact matches. The service says it checks billions of web pages and provides access to academic databases and publications, with support claimed for more than 20 languages. Reports can be downloaded or shared, including as PDF. Free online use is available with limited searches; registered accounts can increase the limit. Plans include Monthly at $14.99 a month and Annual at $8.33 a month, billed $99.99 every 12 months. API access and LMS integrations are listed.

Spec sheet

What it does
The service checks submitted text against web, academic and publication sources and reports duplicated passages, similarity percentages and matching sources.Read 15 Oct 2026 · check-plagiarism.com
Purpose
The service checks text for plagiarism and reports duplicated sections, similarity percentages, and matching sources.Read 28 Sep 2026 · check-plagiarism.com
Intended users
The maker identifies students, teachers, researchers, content creators, and digital publishers as users of the service.Read 28 Sep 2026 · check-plagiarism.com
Integrations
The API page says the API can integrate with any CMS and names WordPress, widgets, and Android among supported platforms.Read 28 Sep 2026 · check-plagiarism.com
Support
The API page advertises 24/7 support for selected API tiers and offers contact for integration questions.Read 28 Sep 2026 · check-plagiarism.com
AI matching
The checker says its AI can identify paraphrases and slightly edited text in addition to exact matches.Read 28 Sep 2026 · check-plagiarism.com
Android app
The Android listing links the app to check-plagiarism.com, supports Word, text and PDF uploads, shows source URLs and similarity percentages, and contains ads and in-app purchases.Read 15 Oct 2026 · play.google.com
Android developer facts
Google Play identifies the developer as Enzipe Apps at HR Tower, Faisalabad, Pakistan, with support contact [email protected].Read 15 Oct 2026 · play.google.com
API availability
The vendor offers APIs for registered users to embed plagiarism checking in CMS, CRM or LMS systems.Read 15 Oct 2026 · check-plagiarism.com
API data claim
The API page states that text sent through APIs is not stored in the vendor database and that responses arrive within seconds.Read 15 Oct 2026 · check-plagiarism.com
API endpoints
Documented endpoints include /apis for account status and /apis/checkPlag for article checking.Read 15 Oct 2026 · check-plagiarism.com
API examples
Public documentation provides cURL and PHP cURL examples but does not list official SDK packages.Read 15 Oct 2026 · check-plagiarism.com
API protocol
The API documentation requires POST requests, an API-key parameter and returns JSON; GET requests are unsupported.Read 15 Oct 2026 · check-plagiarism.com
API request limit
The documented full-article API accepts up to 5,000 words per request, requiring longer text to be split.Read 15 Oct 2026 · check-plagiarism.com
API response
The API returns a detailed JSON response with sentences and URLs matching the submitted text.Read 28 Sep 2026 · check-plagiarism.com
Bulk files
The site says users can check up to five documents at once, while its interface separately states free users may select three files and premium users 20 files per search.Read 15 Oct 2026 · check-plagiarism.com
Documentation depth
The public API guide covers registration, key retrieval, request method, endpoints, parameters and sample responses, but no self-hosting instructions are shown.Read 15 Oct 2026 · check-plagiarism.com
File formats
The web checker accepts DOC, DOCX, TXT and PDF uploads.Read 15 Oct 2026 · check-plagiarism.com
File limit
The feature description says up to five documents can be checked at once, while the homepage says free users can select at most three files and premium users up to 20 per search.Read 28 Sep 2026 · check-plagiarism.com
Founded evidence
The opened company and review pages do not state a founded year; the WordPress profile shows membership since November 2016.Read 15 Oct 2026 · profiles.wordpress.org
Free use
The homepage describes a free online checker, and the site says visitors have limited searches while registered accounts can increase the limit.Read 28 Sep 2026 · check-plagiarism.com
GetApp pricing
GetApp lists a starting price of $4.99 per month and both a free version and free-trial fields for the product.Read 15 Oct 2026 · getapp.com
Input methods
Users can paste or type text, or upload DOC, DOCX, TXT, or PDF files for checking.Read 28 Sep 2026 · check-plagiarism.com
Language support
The product advertises support for more than 20 languages and exposes numerous localized interfaces.Read 15 Oct 2026 · check-plagiarism.com
Languages
The checker page claims support for over 20 languages.Read 28 Sep 2026 · check-plagiarism.com
Licence
The opened vendor pages describe a hosted commercial service and do not state an open-source licence.Read 15 Oct 2026 · check-plagiarism.com
Limit: ads and free limits
Capterra reviewers complain about irritating advertisements and limits in the free version that require splitting longer articles.Read 15 Oct 2026 · capterra.com
Limit: Android accuracy
Google Play reviewers report inconsistent plagiarism percentages, false 100% matches and occasional doubts about result accuracy.Read 15 Oct 2026 · play.google.com
Limit: false positives and accuracy
G2 reviewers report common phrases being flagged, occasional inaccurate results and occasional missed plagiarism.Read 15 Oct 2026 · g2.com
Limit: interface and advertising
Several G2 reviewers criticize an outdated or poor interface and intrusive advertising.Read 15 Oct 2026 · g2.com
Limit: WordPress support complaint
A Trustpilot reviewer reported that the WordPress plugin failed on longer articles, its bulk-check button did not work, support did not respond for seven days and credits expired before resolution.Read 15 Oct 2026 · trustpilot.com
Other tools
The navigation includes AI detection, grammar checking, text summarization, article rewriting, ChatGPT detection and citation generation.Read 15 Oct 2026 · check-plagiarism.com
Paraphrasing
A built-in rewrite or paraphrasing function is offered to change detected duplicated passages.Read 15 Oct 2026 · check-plagiarism.com
Payment protection
The plans page says payments use PayPal or credit cards with buyer protection and advertises a 100% money-back guarantee.Read 15 Oct 2026 · check-plagiarism.com
Plagiarism detection
Its checker scans billions of web pages and uses AI methods intended to identify exact matches, paraphrased text and lightly edited duplication.Read 15 Oct 2026 · check-plagiarism.com
Praise: customer support
A Trustpilot reviewer said the service was easy to use, accurate and that customer service responded helpfully.Read 15 Oct 2026 · trustpilot.com
Praise: ease and accuracy
G2 reviewers commonly praise easy use, useful reports and generally effective plagiarism or AI-content detection.Read 15 Oct 2026 · g2.com
Praise: simple scanning
Capterra reviewers describe the tool as simple to deploy, fast and useful for showing duplicate percentages and affected passages.Read 15 Oct 2026 · capterra.com
Privacy claim
The checker page says checked content is automatically removed after processing and is not saved or shared with third parties.Read 28 Sep 2026 · check-plagiarism.com
Privacy policy
The privacy policy says the company may collect account and usage data and may share personal information with service providers, affiliates, or business partners in specified circumstances.Read 28 Sep 2026 · check-plagiarism.com
Privacy policy company
The privacy policy identifies the company as Check-plagiarism.com, United Trade Center, Shop 2 G-9 Markaz, Islamabad, Pakistan.Read 15 Oct 2026 · check-plagiarism.com
Rating on Capterra
4.5 out of 5 from 2 reviewsRead 15 Oct 2026 · capterra.com
Rating on G2
4.5 out of 5 from 13 reviewsRead 15 Oct 2026 · g2.com
Rating on GetApp
4.5 out of 5 from 2 reviewsRead 15 Oct 2026 · getapp.com
Rating on Google Play
3.7 out of 5 from 386 reviewsRead 15 Oct 2026 · play.google.com
Rating on Trustpilot
2.8 out of 5 from 4 reviewsRead 15 Oct 2026 · trustpilot.com
Reports
Users can save, download and share detailed plagiarism reports, including PDF output.Read 15 Oct 2026 · check-plagiarism.com
Security claim
The homepage says submitted files are automatically removed after processing and are not shared with third parties.Read 15 Oct 2026 · check-plagiarism.com
Sentence-level results
Reports can show sentence-by-sentence matches, highlighted duplicated text and the URLs of matching sources.Read 15 Oct 2026 · check-plagiarism.com
Source coverage
The site says it checks content against billions of web pages and describes access to academic databases and publications.Read 28 Sep 2026 · check-plagiarism.com
Word limits
The free checker limits a single check to 1,000 words; premium plans allow up to 20,000 words in one search.Read 15 Oct 2026 · check-plagiarism.com
WordPress presence
The Check Plagiarism WordPress.org profile joined in November 2016 and records plugin repository commits through November 2022.Read 15 Oct 2026 · profiles.wordpress.org

Plans and prices

Weekly $4.99, paid once weekly 10,000 words · 34 pages · 7,000 words/search · 1,000-word rephraser · deep search · summarizer · grammar checker · WordPress plugin · no ads · 2× faster · detailed reports · APIs · dedicated manager Read 15 Oct 2026 · check-plagiarism.com
Annual $8.33 a month $99.99 billed every 12 months 450,000 words · 1,500 pages · 20,000 words/search · 2,000-word rephraser · deep search · summarizer · grammar checker · WordPress plugin · no ads · 2× faster · detailed reports · APIs Read 15 Oct 2026 · check-plagiarism.com
API Basic $10 a month 30 Days 10,000 queries/requests Read 28 Sep 2026 · check-plagiarism.com
API Company $14.99 a month 30 Days 35,000 queries/requests Read 28 Sep 2026 · check-plagiarism.com
Monthly $14.99 a month monthly 35,000 words · 116 pages · 20,000 words/search · 1,500-word rephraser · deep search · summarizer · grammar checker · WordPress plugin · no ads · 2× faster · detailed reports · APIs Read 15 Oct 2026 · check-plagiarism.com
Semi-Annual $16.66 a month $100 billed every 6 months 200,000 words · 666 pages · 20,000 words/search · 2,000-word rephraser · deep search · summarizer · grammar checker · WordPress plugin · no ads · 2× faster · detailed reports · APIs Read 15 Oct 2026 · check-plagiarism.com
API Basic Yearly Plan $50 a year One Year 60,000 queries/requests Read 28 Sep 2026 · check-plagiarism.com
API Business $50 a month 30 Days 50,000 queries/requests · 24/7 support Read 28 Sep 2026 · check-plagiarism.com
API Company / Webmasters $99.99 a year One Year 450,000 queries/requests · 24/7 support Read 28 Sep 2026 · check-plagiarism.com
API Business / Colleges / Universities $250 a year One Year 600,000 queries/requests · 24/7 support Read 28 Sep 2026 · check-plagiarism.com

Every Check-Plagiarism plan and price →

Strong points and limits

Strong points

  • Free plan and online checker
  • AI matching includes paraphrased text
  • Reports show sources and percentages
  • Supports DOC, DOCX, TXT, and PDF
  • API returns detailed JSON matches

Limits

  • Free searches have limits
  • Document maximum is 7,000 words
  • File-count limits differ across site descriptions
  • Privacy statements describe collection and sharing circumstances

Who it suits

It suits students, educators, researchers, publishers, and content creators who need plagiarism reports. API and LMS support also fit organizations integrating checking into other systems.

Verdict

Check-Plagiarism combines file and text checking with source-rich reports, AI matching, API access, and LMS integrations. Review the differing file limits and privacy statements before choosing a plan.

Where Specifiction places it

Alternatives to Check-PlagiarismAll alternatives →