7 Best Plagiarism Checker Software in 2025 (Free and Paid)

Are you looking for the best plagiarism checker software?

If you are searching for effective ways to improve your writing, Then you need to use plagiarism checker tools.

The best plagiarism checker software gives you advanced features like plagiarism detection, grammar checks, writing enhancements, reporting & statistics, multilingual detection, and more.

In this detailed guide, I ranked and reviewed five of the best plagiarism checker software, so that you can pick the best option for you.

Let’s get started.

What is the Best Plagiarism Checker Software?

Here is a list of the best plagiarism checker software to help you get started.

1. Grammarly

Grammarly provides more than a plagiarism checker.

It helps you detect plagiarism in your text and checks for other writing issues like grammar and spelling as well as more complex stylistic issues like word choice, conciseness, and more. 

I appreciate that they have an Easy-to-use control panel. It’s straightforward to check and manage your work and ensure everything is 100 percent original.

Additionally, Grammarly offers a free plan that includes a robust set of features.

Grammarly’s plagiarism checker is an excellent choice for those who want to create new, original, plagiarism-free work.

In addition to the free plan, which is excellent for beginners, there are two tiers to choose from:

• Premium: Starting at $12 per month
• Business: Starting at $15.00 / member/month

Get started with Grammarly.

2. Plagiarism Checker X

Plagiarism Checker X is a powerful Plagiarism Checker platform for students, bloggers, and content writers. They offer a wide range of tools to make writing original content easy.

Key features include content similarity detection, duplicate detection, side-by-side comparison, intuitive reports, built-in Word and PDF Support and more.

One of the key elements is the “check your webpages” option, which allows you to check the quality of your website’s content in just one click. Plagiarism Checker X gives you complete peace of mind.

The Plagiarism Checker X offers a Basic plan for free, which is available for up to 30 searches daily. Other than that, this platform has two paid plans for a one-time cost.

Professional: $39.95 (1 User License)
Business: $147.95 (5 Users License)

Get started with Plagiarism Checker X.

3. Scribbr Plagiarism Checker

Scribbr is one of the most well-known software in the plagiarism checker space.

The software comes with all the powerful features you’d expect from a high-level plagiarism checker tool such as a plagiarism report, assistance in different languages, a citation generator, a Self-plagiarism Checker, live support, maintaining confidentiality, and more.

Scribbr is perfectly designed for students who want assistance to produce high-quality work, but it’s also a useful tool for writers in any field. It makes it easy to take your content in any direction you need.

One of the features I like the most about Scribbr is that it supports multiple languages, including English, Spanish, French, German, Italian, plus much more.

The pricing for Scribbr’s checker is based on the size of your document.

Small document (up to 7,500 words): $19.95
Normal document (7,500-50,000 words): $29.95
Large document (50,000+ words): $39.95

Get started with Scribbr.

4. Copyleaks

Copyleaks is a multipurpose plagiarism checker solution for entrepreneurs and businesses that require unique content creation.

Key features include AI content detector, URL scans, cheat detection, Code Plagiarism Detector and side-by-side comparison of two pieces of text.

Users can also compare and discover content similarities and duplication between two websites.

Copyleaks is available for free for up to 20 scans per month. After that, the paid plans start from $10.99 per month.

Get started with Copyleaks.

5. Unicheck

Unicheck is another plagiarism Checker software for universities, students and small businesses.

It’s super easy to use, with an intuitive plagiarism prevention tool that helps you detect similarity, and text modifications, and prevent contract cheating. And it comes at a great price.

This tool is suitable for educational institutions that want to promote academic integrity in the classroom.

The basic pricing plan starts at $5 for plagiarism checks on 20 pages, which is ideal for personal use. They also provide a custom price for academic institutions on request.

Get started with Unicheck.

6. Quetext

Quetext is a popular marketing tool that caters primarily to content creators, bloggers, educators and other professionals. One of its most prominent features is that it provides a DeepSearch technology that uses contextual analysis and smart algorithms to quickly search for plagiarism across billions of documents on the web.

Quetext offers powerful features that detect not only plagiarism in your text but also check for other writing issues.

They also provide some other great features, including:

• color-coded feedback
• side-by-side text comparison
• plagiarism scoring
• Lightspeed recognition

The software is available in both free and paid versions, so businesses can choose which plan best suits their needs.
Their free version is available for up to 2.500 words. You also get the ability to upgrade to their paid plan, which starts at $9.99/user/month.

7. PlagScan

PlagScan is an easy-to-use plagiarism detection tool that can help you detect plagiarism with less stress. It caters to academic facilities, students, content writers and other industries.

The PlagScan analytics dashboard gives you data on the percentage of matched text, plus a complete list of matched sources provides you with an overview of where the content of your document comes from.

PlagScan is also a strong pick for a few main reasons:

• Secure platform for its users
• Side-by-side text comparison
• Drag and drop file upload
• Downloadable reports and more.

They also guarantee that your data, will never be shared with third parties and uploaded documents will not be available on the web.

PlagScan pricing plans start from $5.99 per month.

What is Plagiarism Checker Software?

Plagiarism Checker is a tool offered by writing apps to help content writers detect whether or not their text contains duplicate content.

It helps you track and detect plagiarism from billions of web pages while keeping you updated about grammar errors, sentence structure, and indexing issues that may impact the quality of your content.

On top of that, plagiarism checker tools allow users to see how much original and copied content they have in their documents.

Why You Should Use a Plagiarism Checker Software?

Choosing the right plagiarism checker software is essential if you want to produce high-quality content that is pleasant to read. 

Therefore, Individuals, bloggers and businesses that want to be successful online have to find an effective way to attract and maintain customers by creating valuable content. One of the best ways to produce original content is to use plagiarism checker software. 

On top of that, whether you are a student writing an essay, a teacher grading students’ work, or a copywriter producing original content for online businesses, a plagiarism scan will help you check for plagiarism and writing errors depending on your unique needs.

What Features Should You Look For in a plagiarism checker?

There are a ton of plagiarism checker options available and many of them are totally free. Users looking for a plagiarism checker should ensure its effectiveness and suitability for their needs.

Here are a few must-have features to look for in a plagiarism checker tool:

• Multiple File Formats— A good plagiarism checker should support various file formats such as plain text, Word documents, PDFs, and HTML. This flexibility helps businesses within education and other industries that require content creation.
• Detailed Reports —In-depth analytical reporting will help you detect plagiarism in your text with detailed information. This way, you can optimize your content and improve your writing skills.
• Language Support—Having software with multiple language support, gives you the flexibility to use it in almost any language.
• Privacy and Security — Suitable plagiarism checker tools should offer robust security measures in order to protect your data.

Summary

After careful research, analysis, and comparison of all these popular plagiarism checker software, we believe that Grammarly, Plagiarism Checker X, and Scribbr are our top picks for the best plagiarism checker software. Each one offers a wide range of features suitable for users in all fields, including students, teachers, bloggers and copywriters.

However, Think thoroughly about what your business needs from a plagiarism checker software, and then make a choice based on that criteria.

We hope this article helped you find the best plagiarism checker software to evaluate the originality of your work.