Best Turnitin Alternative in 2025: Free & Paid Plagiarism Checkers
- Sumra
- Aug 19
- 4 min read
Updated: Aug 26
If you are writing a thesis, dissertation, research paper, or even a blog post, one issue always comes up—plagiarism. Plagiarism not only affects the credibility of your work but can also lead to serious academic and professional consequences.
Traditionally, Turnitin has been the gold standard for plagiarism detection. However, not everyone has access to it, especially students and early-career researchers.
So, what are the best alternatives to Turnitin in 2025? Can free tools compete with Turnitin’s detailed reports?
In this article, we will explore both free and paid plagiarism checkers, test them with the same sample content, and compare their results with Turnitin. By the end, you’ll know which plagiarism checker is best for your needs.
1. Small SEO Tools – Free Plagiarism Checker
Small SEO Tools is one of the most popular free platforms for writers, bloggers, and students. While it is widely known for SEO tools like keyword analysis and article rewriting, it also offers a plagiarism checker that works surprisingly well.
How it works: You paste your content into the plagiarism checker (up to 1,000 words for free) and click “Check Plagiarism.” Within seconds, it scans your text across online databases and highlights matching sections.
Special features:
Free to use (up to 1,000 words).
Shows plagiarism percentage with highlighted matches.
Supports grammar checking, paraphrasing, and word count.
Compatible with academic and non-academic content.
Test Result: When tested with a paragraph copied from a published paper, Small SEO Tools reported 94% plagiarism, which was very close to Turnitin’s report of 98% plagiarism. This makes it one of the most reliable free alternatives to Turnitin.
2. Plagiarism Detector
Plagiarism Detector is another free online tool that allows users to check plagiarism quickly.
How it works: Simply paste your text (up to 1,000 words for free users) and press “Check Plagiarism.” It scans online sources to detect similarities.
Special features:
Highlights plagiarized and unique sections.
Easy-to-read plagiarism report.
Free usage limit, with premium options for longer documents.
Test Result: The same sample text showed 82% plagiarism, which is lower than Turnitin’s 98%, but still useful for quick checks.
3. DupliChecker
DupliChecker is another free tool widely used for plagiarism checking, grammar correction, and SEO optimization.
How it works: Paste your text or upload a file (Word, PDF, or TXT), and DupliChecker runs a similarity check across online content.
Special features:
Free plagiarism check (up to 1,000 words daily).
Option to upload files directly.
Highlights plagiarized content clearly.
Additional SEO features, like keyword analysis.
Test Result: DupliChecker detected 88% plagiarism, which again is close to the Turnitin benchmark of 98%.
4. Grammarly Plagiarism Checker (Paid)
Grammarly is best known as a grammar and style improvement tool, but it also includes a plagiarism checker in its premium plan.
How it works: Paste your content, and Grammarly scans billions of web pages and academic databases to detect copied text.
Special features:
Plagiarism detection with citation suggestions.
Grammar, style, and clarity checking in one tool.
Easy-to-use Chrome extension and app integration.
Test Result: Surprisingly, Grammarly showed 0% plagiarism for the same copied text, which was not accurate compared to Turnitin’s 98% plagiarism report. This shows that Grammarly’s plagiarism tool is not always reliable for academic research, though it is useful for general writing.
5. Paperpal – Turnitin-Verified Plagiarism Checker (Paid)
🔗 Visit Paperpal💡 Use Discount Code: Drrizwana20
Paperpal is a powerful AI-powered academic writing assistant that now integrates with Turnitin’s plagiarism detection system. Unlike free tools, it directly provides a Turnitin plagiarism report without needing a university account.
How it works: Upload your document (up to 10,000 words), and Paperpal generates a similarity report verified by Turnitin.
Special features:
Turnitin-backed plagiarism checking.
Advanced academic writing suggestions.
Supports paraphrasing and summarization.
Works for large research documents.
Test Result: Paperpal generated a 98% plagiarism report, identical to Turnitin’s result, proving its accuracy and reliability.
Tools like AnswerThis aren’t just time saves, they help you conduct better quality research, faster.
Comparison of Plagiarism Reports
Tool | Plagiarism Report | Accuracy Compared to Turnitin |
Small SEO Tools | 94% | Very High Accuracy |
Plagiarism Detector | 82% | Moderate Accuracy |
DupliChecker | 88% | High Accuracy |
Grammarly (Paid) | 0% | Not Reliable |
Paperpal (Paid) | 98% (Turnitin) | Perfect Accuracy |
Turnitin (Standard) | 98% | Benchmark |
Which Tool Is Best?
If you need free plagiarism checking, Small SEO Tools is the most accurate among free platforms.
If you need academic-grade plagiarism detection, Paperpal is the best Turnitin alternative because it provides a Turnitin-verified report.
Grammarly is useful for grammar correction, but not reliable for plagiarism checking.
DupliChecker and Plagiarism Detector are good backup options, but slightly less accurate.
Conclusion
Plagiarism detection is a critical step in writing and publishing research. While Turnitin remains the gold standard, free tools like Small SEO Tools and paid tools like Paperpal are excellent alternatives in 2025.
Get My 6 Hours Customized Course "Mastery In Research Writing With AI Tools"
Students and bloggers can rely on free tools for general plagiarism checking.
Researchers and academics should use Paperpal, as it offers Turnitin-level accuracy without requiring institutional access.
By choosing the right tool, you can ensure your writing is original, credible, and ready for submission.
At Scientific Pakistan, we guide students, researchers, and professionals in choosing the right AI tools for writing, research, and academic success. Explore our tutorials and detailed tool reviews to stay ahead in your research journey.
Book 1:1 Consultation with Dr Rizwana
Comments