Plagiarism Checker X

Plagiarism Checker X is a desktop application for Windows that measures how similar a piece of writing is to other material. Students, teachers, publishers and marketers use it before handing in or publishing work.

What Plagiarism Checker X offers

• Online plagiarism search — scans the text against web pages and reports the matched share.
• Bulk comparison — checks a whole batch of documents in one go, which suits teachers marking many assignments.
• Side-by-side comparison — shows differences between two texts.
• AI detection — gives an indication of whether text came from an AI tool or a person.
• Readability checker — analyses reading level and extracts keywords.

Who it works with

The vendor names students, teachers, writers, journalists, bloggers and SEO professionals as its audiences. It reads Word files, spreadsheets, PDF, RTF and plain text, and users are described as coming from over 120 countries.

Key facts

• Platform: Windows 11, 10, 8, 7 and Vista
• Interface languages: English, Spanish, French, German, Italian, Dutch and Portuguese
• Language coverage: Understands more than 250 languages
• Reports: Word and PDF reports with colour-highlighted matches and a QR code