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Top 29 Plagiarism Checker Software SaaS Companies in May 2026

As of May 2026, there are 29 SaaS companies in Plagiarism Checker Software. They have combined revenues of $288.8M and employ 2.5K people. They have raised - and serve - customers combined.

Plagiarism Checker Software is designed to identify instances of plagiarism within text documents by comparing submissions against various databases and online resources. This software is widely used within educational institutions, publishing houses, and businesses that require the verification of original content. Typical features include text comparison algorithms, reports detailing matched content, and tools for citation assistance to help users maintain academic integrity and ensure proper attribution of sources. These tools are essential for educators to uphold standards of academic honesty, allowing them to detect potential cheating as well as unintentional plagiarism. In publishing, they assist in maintaining originality while evaluating manuscripts. Common users of this software include teachers, students, academic institutions, publishers, and content creators seeking to verify the originality of their work, thus preventing legal and reputational risks associated with plagiarism.

Companies
29
Revenue
$288.8M
Funding
-
Employees
2.5K

Filters

Sorting: Highest -> Lowest

Filters

Top Plagiarism Checker Software Companies

Showing 10 of 14 companies ranked by annual revenue.

1
EditPad

Newark, Delaware, United States

Editpad is Managed and Owned by Ahmad Sattar. We have developed multiple AI tools including AI paraphrasing tool, AI Email Writer, plagiarism checker, ai atory generator, etc.

Revenue
$990K
Customers
-
Year founded
-
Funding
-
Team size
9
Growth
-
2
Plagiarix

Warsaw, Poland, Poland

At Plagiarix, we believe in originality and smart solutions. Our team of PhD experts and experienced developers is dedicated to enhancing education through AI-driven tools that ensure both academic integrity and personalized learning experiences. We are passionate about content and its uniqueness, and we're focused on providing solutions that not only detect plagiarism but also support the evolving needs of modern education. By incorporating AI into the learning process, we help educators and students achieve a smarter, more transparent, and efficient approach to learning.

Revenue
$880K
Customers
-
Year founded
-
Funding
-
Team size
8
Growth
-
3
Plagiarism Checker X, LLC

New York, New York, United States

Plagiarism Checker X, LLC started with a vision to develop the most reliable, innovative and standardized plagiarism detection applications for the global market. The first phase of products have been designed and developed by a team of experienced software engineers, to be used as desktop applications. The main product; “Plagiarism Checker X” helps students, teachers, researchers, bloggers, publishers, editors & SEO experts by checking for duplication issues within their content; i.e. their assignments, research papers, publishing material, blogs, websites, etc.

Revenue
$770K
Customers
-
Year founded
2014
Funding
-
Team size
7
Growth
-
4
PlagiarismSearch.com

Alicante, Valencian Community, Spain

PlagiarismSearch is an international commercial company that focuses on plagiarism detection services. It offers an advanced plagiarism detection software both for students and professors. Our mission highlights the importance of academic integrity and originality of writing.

Revenue
$660K
Customers
-
Year founded
2008
Funding
-
Team size
6
Growth
-
5
CustomWritings.com

Limassol, Limassol District, Cyprus

All your writing needs covered! Our professional essay writing service helps you get control over your studies

Revenue
$660K
Customers
-
Year founded
-
Funding
-
Team size
6
Growth
-
6
Crimson AI

United States

The AI Associate for Litigation Lawyers

Revenue
$660K
Customers
-
Year founded
2025
Funding
-
Team size
6
Growth
-
7
Plag.ai

United States

Plagiarism checker trusted worldwide. World’s first truly multilingual plagiarism detection tool. Check your paper for plagiarism against billions of papers and scholarly articles. Plagramme invites students and teachers to achieve the best academic results without being afraid to experiment.

Revenue
$660K
Customers
-
Year founded
2010
Funding
-
Team size
6
Growth
-
8
Quetext

Kansas City, Missouri, United States

Quetext is a leading plagiarism-detection software, providing services to over 5 million teachers, students, and professionals worldwide. By combining advanced DeepSearch™ technology with clear and engaging feedback, we provide our users with the tools necessary to improve their writing.

Revenue
$550K
Customers
-
Year founded
2016
Funding
-
Team size
5
Growth
-
9
Copyscape

United States

Copyscape is the world's most trusted plagiarism checker. For over two decades, companies worldwide have trusted Copyscape as the industry standard for enterprise-class online plagiarism detection. Copyscape is used by the world’s leading companies in publishing, Gen-AI, content marketing, SEO, education, research and more. Publishing plagiarized or duplicate content on your website can expose you to legal liability and lower your site's rankings on search engines and AI chatbots. Whether your content is written by humans or generated by AI, Copyscape checks if it is unique before you publish. Deploy AI with confidence with Copyscape, checking the originality of all new content. The Copyscape Premium service provides more powerful plagiarism detection, plus a host of other features including file uploads, batch search, private index, case tracking, an API, and WordPress integration. Copyscape Enterprise lets you deploy Copyscape's trusted plagiarism detection service on your own infrastructure, either on-premises or in your private cloud. Copyscape Enterprise can check both human- and AI-generated content, offering maximum security and control. The Copysentry service provides comprehensive protection for your website by automatically scanning the web daily or weekly and emailing you when new copies of your content are found. Copyscape also offers free plagiarism warning banners for your website to warn potential plagiarists against stealing your content, as well as a free tool to compare two web pages or articles, and a comprehensive guide to dealing with and responding to plagiarism. Learn more and try Copyscape for free at copycsape.com

Revenue
$440K
Customers
-
Year founded
2003
Funding
-
Team size
4
Growth
-
10
Check Plagiarism

Faisalabad, Punjab, Pakistan

Check Plagiarism for research papers, thesis and online articles. Check-Plagiarism allows to to check up to 25,000 online with single click.

Revenue
$330K
Customers
-
Year founded
-
Funding
-
Team size
3
Growth
-

Inclusion Criteria

- The software must provide mechanisms for detecting copied or closely paraphrased content. - It should offer reports that detail both matched content and possible sources. - The solution must be suitable for use in academic settings, such as schools and universities. - It must support various document formats for upload and analysis. - Not just a basic text comparison tool; must also provide deeper analysis features like citation assistance or checking against multiple databases.