10 Best Turnitin Plagiarism Checker Alternatives– Tried and Tested Review!

Turnitin is one of the top-tier plagiarism checkers in the world. However, its subscription plans can often be inconvenient for students. Due to this, hundreds of writers search for Turnitin alternatives daily, seeking a service that offers the best value. 

With so many plagiarism checkers available online, trusting the one with credible results can sometimes be impossible. That’s why we'll share with you 10 plagiarism checkers that are competing with Turnitin.

From pros and cons to pricing plans, we have included everything in this guide after testing each platform thoroughly.

So, let’s get started!

1. Isgen

Trusted by more than a million educators and writers worldwide, Isgen is one of the most credible plagiarism checkers. This free online plagiarism checker supports over 80 languages, ensuring originality across multiple languages. 

The platform uses advanced algorithms that go beyond the number of words plagiarized. It provides a comprehensive analysis of each source along with ready-to-use citations. 

Additionally, isgen also supports customizing your search. You can choose whether or not you want to include results from Google Scholar or some specific URLs.

Moreover, for the user's convenience, even the accidentally plagiarized parts are highlighted in different colours. Writers can review these highlights and improve their work accordingly. 

Key Features

• Sentence-level analysis.

• Supports Google Scholar search.

• Real-time plagiarism assessment.

• Supports batch file upload.

• Allows uploading of files.

• Provides access to all other tools in the same package.

Pricing Plans

Isgen is a student-friendly plagiarism checker, and for this reason, they have kept their packages extremely affordable. It allows users to check up to 12000 words for free.

It also offers a starter plan that offers 150,000 words per month for 8$ only. The best value plan by Isgen allows you to check 350,000 words for only $14 per month. 

For more words, writers can also review other plans.

Pros

• Easy-to-use interface.

• Supports more than 80 languages.

• Supports Google Scholar Search

• Features Deepscan.

• Allows plagiarism detection and citation generation in one place.

Cons

• Advanced features only available in paid plans. 

2. Copyscape

Copyscape has been around for years and is trusted by many website owners and content writers. It’s mainly popular for checking online articles and blogs for copy-paste issues. Writers can just paste the URL of their web page, and Copyscape compares it with billions of pages on the internet. 

It also allows users to paste text directly if they don’t have it published online yet. One big plus is that it’s quick, generating plagiarism reports in seconds. Also, if someone is running a WordPress blog, they can integrate Copyscape to check posts automatically before publishing. 

However, Copyscape is not the cheapest. Once the free checks run out, users need to buy credits for each check, which can add up if one checks a lot of content every month.

Key Features

• Can be integrated with WordPress.

• Provides automated plagiarism reports.

• Allows multiple uploads.

Pricing Plans

Free for a single check per page. Paid plans use credits starting at 3 cents per search.

Pros

• Highly accurate results.

• User-friendly interface.

• Scans websites and databases. 

Cons

• Costly subscription plans.

3. SmallSEOTools

SmallSEOTools is an all-in-one free toolset for writers and bloggers. Their plagiarism checker is one of their most-used features. It’s super beginner-friendly. Users can paste their text, hit the ‘Check Plagiarism’ button, and within seconds, they get a detailed percentage of copied content. 

What makes SmallSEOTools different is that it also offers additional tools like a paraphraser, and keyword suggestions, all for free. For students or bloggers who want quick results without paying a dime, SmallSEOTools is a handy option. Nevertheless, the free version's deep scan feature is not as advanced as of tools like isgen or Turnitin.

Key Features

• 100% free to use.

• Grammar checker and paraphraser included.

• Multiple file formats supported.

Pricing Plans

Completely free with no paid plans for the plagiarism checker.

Pros

• Free for unlimited use.

• Additional SEO and writing tools.

• Simple to use for beginners.

Cons

• Basic plagiarism scanning

4. Copyleaks

Copyleaks is a powerful AI-driven plagiarism checker that works well for both educational and business needs. It scans not just for word-for-word copying but also for paraphrased or reworded content, which many basic checkers miss. 

One standout feature is its multilingual support, which allows it to check text in over 30 languages. Users can upload multiple file types like PDFs, DOCX, or plain text, and get side-by-side comparison reports. 

Copyleaks also offers a handy browser extension to check content on the go. For students, it has a special education plan that’s more affordable than Turnitin but still gives you deep scanning.

Keep in mind, though, that the free trial is limited, and for regular checks, you’ll need a subscription.

Key Features

• AI-based detection.

• Detects paraphrased text.

• Side-by-side reports.

• Supports 30+ languages.

Pricing Plans

Free trial available. Paid plans start at around $10.99 per month.

Pros

• Accurate plagiarism detection.

• Checks rephrased content.

• Flexible plans.

Cons

• Limited free checks.

5. Quetext

Quetext is one of the most user-friendly plagiarism checkers out there. It uses DeepSearch technology to find copied phrases and accidental plagiarism. When text is pasted, Quetext shows colorful highlights to mark copied sections and even tells the percentage of the text plagiarized. 

For teachers and students, this visual style makes it easy to understand what to change. Quetext’s free version is quite limited, though. Users can check up to 500 words at a time, but the Pro plan gives unlimited checks and deeper reports. Overall, it’s a great option if someone wants something simple yet effective.

Key Features

• DeepSearch for better detection.

• Color-coded highlights.

• Citation generator included.

Pricing Plans

Free for 500 words per check. Pro plan starts at $9.99/month.

Pros

• Discernible reports.

• Good for students and teachers.

• Easy to navigate.

Cons

• Free version is too limited.

6. Plagium

Plagium offers a straightforward plagiarism check for online content, documents, and social media posts. It’s known for its quick scan option. Users can get results in just a few seconds. Unlike some tools, Plagium allows writers to check content by pasting text, uploading files, or even providing a URL. 

Moreover, the platform also offers different search levels: quick, deep, or file search, depending on how detailed one wants the scan to be. Additionally, the pricing is flexible too, as one only pays for what they use. 

The one problem that we came across here was the user interface, which looked a bit outdated compared to newer tools. Consequently, it may take a learning curve for users to understand how to use the platform appropriately.

Key Features

• Multiple search levels.

• Checks social media posts.

• Fast scanning.

Pricing Plans

Basic checks are free, deeper searches are pay-per-use.

Pros

• Quick and flexible.

• Pay-as-you-go option.

• Checks various content types.

Cons

• Old-fashioned interface.

7. Grammarly

Grammarly is best known as a grammar checker, but it also includes a built-in plagiarism checker for its Premium users. It means that one gets to have two tools in one: a grammar checker and a plagiarism detector. The platform is super handy for students writing essays and reports. 

The plagiarism checker is accurate for basic checks but might miss some deep matches that Turnitin would catch. Grammarly’s biggest strength is its all-in-one nature. Users can fix their writing and check originality in a single click that too in real-time.

The downside? The plagiarism feature is only available with a paid Premium subscription.

Key Features

• Combined grammar and plagiarism check.

• Highlights issues clearly.

• Instant suggestions for improvement.

Pricing Plans

Plagiarism check is included in the Premium plan, which is $12 per month, that users can also bill annually.

Pros

• Two tools in one.

• Easy to use.

• Helps polish your writing.

Cons

• No free plagiarism check.

8. QuillBot

QuillBot is mainly known for its paraphrasing tool, but it also has a plagiarism checker that helps catch accidental copying in writing. The checker scans billions of sources and marks matched content clearly, also showing the original sources. 

If it finds plagiarism, writers can use QuillBot’s built-in paraphraser to rewrite sentences immediately. This combo makes it popular among students and freelance writers who want to polish and check work in one place. 

Users can try it for free, but only up to a limit. After that, they need a Premium plan to unlock the potential of the platform. While it’s handy, keep in mind that its deep scan is not as robust as Turnitin’s or Isgen’s.

Key Features

• Plagiarism check and paraphrasing together.

• Detailed source links.

• Easy rephrasing tool.

Pricing Plans

Limited free checks. Premium starts at $9.95/month.

Pros

• Paraphraser plus checker in one.

• Good for rewriting text.

• Clear match reports.

Cons

• Limited free usage.

9. PlagiarismCheck.org

PlagiarismCheck.org is designed mostly for students, teachers, and academic institutions. It scans essays, research papers, and theses for copied content using an extensive database. Reports are easy to read and show the percentage of plagiarism along with source links. 

One helpful feature is that it detects if students try to trick the checker by changing characters or using synonyms. It’s more affordable than Turnitin and works well for checking school assignments. The free version is very limited, so most users will need a subscription for full access.

Key Features

• Academic-level checking.

• Clear, detailed reports.

• Detects trick attempts.

Pricing Plans

Starts at $5 per paper. Other subscription plans are also available.

Pros

• Good for schools and colleges.

• Detects sophisticated plagiarism tricks.

• Detailed source breakdown

Cons

• Free version is too basic.

10. Duplichecker

Duplichecker is a well-known free plagiarism checker that’s perfect for quick checks. One can paste text or upload a file, and obtain a report showing how much of their content is copied. It’s free for small checks, and users don’t even need to create an account. 

For bloggers, students, or anyone wanting a fast check before submitting work, Duplichecker does the job well. It also offers extra tools like grammar checks and keyword analysis. However, the detection is not as deep as paid tools. So, for important academic work, it may not be reliable enough.

Key Features

• Free and simple to use.

• No sign-up required.

• Additional writing tools.

Pricing Plans

Free for basic use. Premium plans are available for advanced features.

Pros

• Quick and convenient.

• 100% free for small tasks.

• Useful extra tools.

Cons

• Limited deep search.

Final Verdict

There are many plagiarism checkers online, but not all offer the required accuracy without breaking the bank. So, it’s important to pick one that matches your needs. This can feel hard because there are so many tools to choose from!

That’s why we made this list of the 10 best Turnitin alternative plagiarism checkers for you. We tested each one and shared their features, pros & cons, and pricing.

Take your time, check out these tools, and pick the one that best fits your writing style and budget. 

Good luck!