Plagiarism is a highly intolerable act of taking someone else’s work or ideas and passing them off as one’s own. Plagiarism detection is one of the severe concerns among teachers, students, and writers that need to ensure the uniqueness of their copies. In this article, we’ll check the top plagiarism detection tools that will help all eLearning professionals including teachers, educators to detect plagiarism & give credit where it is due.

A plagiarism checker is an application which can check a document or some portion of it for plagiarized or duplicate content. These applications scans the whole internet for similar content or copies of documents. Many tools allow you to check plagiarism through the site URL or by uploading a document (.doc, .pdf, docx, .txt, .odt etc).

We have summed up a list of best plagiarism checkers for students, teachers, and writers to analyze and detect copied content. The list contains both open source (free) and commercial (paid) software.

Top Plagiarism Detection tools in 2023

#1 Grammarly

1) Grammarly

In the recent years, Grammarly has emerged as one of the most popular tool for checking grammar and plagiarism. Grammarly can check the plagiarism from ProQuest databases and over 16 billion web pages.

Pros:

• Originally designed for students but very useful for writers in any field who wants fresh, original & plagiarism free work.
• Scan through billions of webpages and ProQuest academic Databases.
• Highlights passages that require citations to properly credit your sources.
• Grammarly instant report lets you know how many duplication issues are there in the content.

Cons:

• Lagging while checking larger chunks of text online.
• Only available in English.

Pricing:

• Free of Charge
• USD $144/Annual Payment, $30/monthly Payment

#2 PlagiarismCheck.org

2) PlagiarismCheck.org

PlagiarismCheck.org offers you one of the best industry standard plagiarism detection. With their own advanced algorithms, PlagiarismCheck.org can help find the smallest similarities in texts.

Pros:

• Originally designed for students but very useful for writers in any field who wants fresh, original & plagiarism free work.
• Scan through billions of webpages and ProQuest academic Databases.
• Highlights passages that require citations to properly credit your sources.
• Grammarly instant report lets you know how many duplication issues are there in the content.

Cons:

• There’s no bulk checker
• Doesn’t have a mobile app

Pricing:

• USD $1/User for Institutions,
• USD $5.99 for Individuals

#3 Plagiarism Checker X

The Plagiarism Checker X offers you the plagiarism detection feature in 7 languages including English, Spanish, French, German, Italian, Dutch, and Portuguese. It is used in more than 80 countries around the world which makes it one of the popular tools around.

Pros:

• Side by Side comparison
• Keyword analyzer
• Website plagiarism checker
• Online plagiarism checker

Cons:

• Limited features in the free version.
• Lagging during checking.
• Few basic features missing

Pricing:

• Free version available
• Windows compatible version Single user license – Lifetime USD $39.95

#4 Dupli Checker

Dupli checker is one of the most effective free plagiarism detection tools on the internet. It can check content in other languages such as Spanish, Russian, Portuguese, Dutch, Indonesian, Italian, and Arabic making it a comprehensive solution when it comes to checking plagiarism. 

Pros:

• Free to use.
• Automatic mistake correction while writing
• Ability to write more than 20,000 words.

Cons:

• Plagiarism check works well only in Premium version.
• Too many ads in free version.

Pricing:

• Plans start with $10/month

#5 Quetext

Quetext is a web-based plagiarism detection tool and citation assistant for education, content creation, blogging and other professions. With its DeepSearch and Colorgrade Feedback technology it not only helps you detect plagiarism effectively but also provides you a great user experience.

Pros:

• Free to use
• Uses DeepSearch to scan papers, documents and other input writing.
• Respects user privacy and doesn’t store your submitted content in their database

Cons:

• Requires paid subscription to scan more than 3 documents or documents more than 500 words.
• No grammer check or spell checker tool.

Pricing:

• $14.99 per month