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Plagiarism Checker X

plagiarismcheckerx.com

Free plan Windows
Visit plagiarismcheckerx.com
Spec score 8.1 #8 of 26 in AI Plagiarism Checkers

What it is

Plagiarism Checker X is Windows desktop software for checking documents and text against published web pages for plagiarism and similarity. Its online checker compares content with more than 16 billion pages. Bulk Comparison examines multiple documents in repositories, while Side-By-Side Difference places content in two windows to locate matching text. An AI detector indicates whether writing may have come from an AI tool or a human. A readability checker analyzes reading levels, extracts keywords and assesses difficulty. Reports mark matches with colors and references and can export to Word, PDF or Excel. The software accepts Word, PDF, text and other textual formats. Its interface is available in English, Spanish, French, German, Italian, Dutch and Portuguese, with content support for hundreds of languages. The maker says documents remain on the user’s computer and customer content is not copied, stored or sold. Basic is free with limited words and a daily search limit. Professional costs $39.95, paid once; Business costs $147.95, paid once.

Spec sheet

Purpose
The desktop software checks documents and text for plagiarism and similarity against published web pages.Read 7 Oct 2026 · plagiarismcheckerx.com
Privacy
The maker says documents remain on the user's computer during scanning and that customer content is not copied, stored, or sold.Read 7 Oct 2026 · plagiarismcheckerx.com
Support
The pricing page lists 24/7 customer support with Professional and priority support with Business.Read 7 Oct 2026 · plagiarismcheckerx.com
Headquarters
733 3rd Avenue, New York City, NY 10017, United StatesRead 28 Sep 2026 · plagiarismcheckerx.com
Founded
2012Read 28 Sep 2026 · plagiarismcheckerx.com
AI detection
The maker says its AI-generated content detector indicates whether content may have been produced by an AI tool or written by a human.Read 7 Oct 2026 · plagiarismcheckerx.com
Bulk comparison
Bulk Comparison analyzes multiple documents within one or more repositories to determine originality.Read 7 Oct 2026 · plagiarismcheckerx.com
File formats
The software supports text files including Word and PDF documents, with other textual formats also supported.Read 7 Oct 2026 · plagiarismcheckerx.com
Language support
The software interface is available in English, Spanish, French, German, Italian, Dutch, and Portuguese, and it supports content from hundreds of languages.Read 7 Oct 2026 · plagiarismcheckerx.com
Notable free limit
The free Basic edition has limited words and a daily search limit, while the paid version has unlimited words.Read 7 Oct 2026 · plagiarismcheckerx.com
Online checking
Online plagiarism checking compares content against more than 16 billion published pages.Read 7 Oct 2026 · plagiarismcheckerx.com
Privacy policy
The company says its privacy policy incorporates the EU GDPR and Data Protection Act 2018.Read 7 Oct 2026 · plagiarismcheckerx.com
Readability
The readability checker analyzes reading levels, extracts keywords, and assesses text difficulty.Read 7 Oct 2026 · plagiarismcheckerx.com
Reports
Reports highlight matched similarity with colors and references and can be exported as Word or PDF documents.Read 7 Oct 2026 · plagiarismcheckerx.com
Side by side
Side-By-Side Difference displays content in two windows to help locate similar text.Read 7 Oct 2026 · plagiarismcheckerx.com
Who it serves
The maker describes the product for students, teachers, writers, universities, colleges, and SEO agents.Read 7 Oct 2026 · plagiarismcheckerx.com

Plans and prices

Basic Free Free forever Limited words · Daily search limit · 20+ languages support Read 7 Oct 2026 · plagiarismcheckerx.com
Professional $39.95, paid once Pay once, use forever 1 user license · Unlimited words · Online similarity check · Text comparison · Built-in Word/PDF support · Lifetime package license · 24/7 customer support · 1 year maintenance plan included Read 7 Oct 2026 · plagiarismcheckerx.com
Business $147.95, paid once Pay once, use forever 5 users license · Branding reports · Priority support · All Professional features included Read 7 Oct 2026 · plagiarismcheckerx.com

Every Plagiarism Checker X plan and price →

Strong points and limits

Strong points

  • Checks against more than 16 billion web pages
  • Bulk comparison across document repositories
  • AI and readability checking included
  • Word, PDF and Excel report export
  • Documents stay on the user’s computer

Limits

  • Windows only
  • Free Basic edition limits words and daily searches
  • No API access
  • Professional and Business require one-time payment

Who it suits

It suits students, teachers, writers, universities, colleges and SEO agents working on Windows. The paid editions fit users needing unlimited words or multiple licenses.

Verdict

Plagiarism Checker X combines web matching, document comparison, AI indication and readability analysis in a Windows application. Review the free limits and one-time license options before choosing an edition.

Where Specifiction places it

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