Top 8 Free Plagiarism Checkers to Check Copied Content in 2025

Originality is all the rage today, whether you are a content marketer, student, or blogger. Copying content is doom for your SEO, reputation, and can bring about penalties. That is why you require plagiarism checkers. On the plus side? You don't have to shell out a cent. Here we present to you the top 8 free plagiarism checkers, which are as precise as they are fast and convenient.


Let's get started!


1. Grammarly Plagiarism Checker

Ideal For: writers and bloggers

Limitations: Requires a free account to scan for plagiarism


Grammarly is not just a grammar checker, however—it also contains an extremely useful plagiarism detector. It scans your writing against up to billions of web pages and academic databases. While the free account is restricted, it's still an excellent option for brief articles and weblog posts.


✅ Highlights:

  • Real-time suggestions


  • Easy integration with Chrome


  • Supports various content types


🔗 Visit Grammarly



2. Quetext

Suitable for: Students, blog writers

Limitations: 500-word limit in the free version


Quetext provides an easy and intuitive interface with DeepSearch™ technology for better detection. It is ideal for rapid scans with its free version.


✅ Highlights:

  • Colour-coded outcomes

  • Grammar suggestions were

  • No account required


🔗 Try Quetext


3. Small SEO Tools Plagiarism Checker

Best for: Bloggers and SEO professionals

Drawbacks: Advertisements may affect user experience


This is perfect for Web 2.0 users who would like to ensure that content is 100% unique. Text can be copied-pasted or uploaded into files.


✅ Highlights:

  • Supports DOCX, TXT and PDF document files

  • Google-indexed results

  • Free API access


🔗 Utilise Small SEO Tools



4. Plagscan

Suitable for: Academic authors and educators

Limitations: Registered checks with restrictions


Plagscan scans your work against internet sources, journals, and academic databases. It is used extensively by institutions to check student work and ensure originality.


✅ Highlights:

  • In-depth PDF reports

  • GDPR-compliant

  • Cloud storage support


🔗 Plagscan check

5. DupliChecker

Most appropriate for: Bloggers and freelancers

Limitations: Word limit of 1,000 for free users


DupliChecker is fast and simple. No sign-up, simply paste and copy your content and obtain results instantly.


✅ Highlights:

  • Multi-format input support

  • Low usage does not need registration

  • Free grammar checker integrated


🔗 Visit DupliChecker



6. PaperRater

Optimal for: Students and educators. Drawbacks: Sluggish scanning on the free version


Blending data science and AI, PaperRater detects plagiarism as well as examines grammar, vocabulary, and writing style.


✅ Highlights:

  • Educational emphasis

  • Enhancing writing suggestions

  • No downloads necessary


🔗 Test PaperRater



7. PlagiarismDetector.net

Ideal for: Bloggers, content creators

Restrictions: 1,000-word limit per search


With real-time scanning, the software detects even the most minute instances of plagiarism. It indicates the percentage of originality for clarity.


✅ Highlights:

  • Individual source URLs

  • Mobile-friendly interface

  • No registration needed


🔗 Use PlagiarismDetector.net



8. SearchEngineReports.net

Ideal for: SEO professionals
Limitations: Ads and UX polish.

This full SEO package also comes with a reliable plagiarism checker. It also has an easy-to-use dashboard for instant switching between content tools.

✅ Highlights:

  • Multi-language support

  • File upload & URL input

  • 2,000-word limit per check


🔗 Try It Now

✅ Final Thoughts


If you're producing content in 2025, uniqueness is not an option anymore. Whether you're composing guest posts, social media posts, or scholarly essays, these free plagiarism detectors will assist you in making your content unique and authentic.


Pro Tip: For most content creators, the most effective results are a combination of two tools.

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