Top 10 Best Plagiarism Checker Software 2023 – Free & Paid

Plagiarism checkers are very important tools for writers most especially those who write for an internet audience because Google and other search engines take plagiarism very seriously and penalize websites which have plagiarized content.

In search engine optimization, plagiarized content is referred to as Duplicate content and it is a very big deal because once duplicate content is detected on your website, your search engine rankings nosedive immediately.

Writing requires research and sometimes, writers unintentionally add plagiarized content to their articles in the process of crafting an article from various sources.

It is important to check articles for plagiarism before they are published to ensure they are totally free of copyright content which can damage your reputation and earn you a Google penalty.

There are many plagiarism checker software available online which makes it quite difficult to choose. Here are the best plagiarism checkers based on user reviews:

  • Copyscape
  • DupliChecker
  • Grammarly
  • Paperrater
  • Plagiarisma
  • Plagium
  • PlagScan
  • PlagTracker
  • SearchEngine Reports
  • Small SEO Tools Plagiarism Checker
  • Unplug Checker

1. Copyscape

Copyscape tool is very good for checking for plagiarized versions of your own content on the internet and also to know whether your content has plagiarism issues. The only problem is that the free version works with only urls so your content must be published before you can check for plagiarism in it.

2. DupliChecker

DupliChecker plagiarism detection software is free and easy to use, you can copy and paste the text you want to check or upload the text file. It provides results instantly and offers 1 free search per day without registration and a maximum of 50 searches per day for registered users.

3. Grammarly

Grammarly is a very popular plagiarism detection tool, it is used mainly for grammar checks and is very good when training to become professional writer.  It can be downloaded to a PC, installed and then works to proofread text online. Grammarly plagiarism checker is available for free for the basic version, you will need to upgrade to the paid version to enjoy better features.

4. Paperrater

Paperrater is a free online plagiarism checker that also offers grammar checks and automatic proof reading services, it also has a premium version.

5. Plagiarisma

Plagiarisma tool has a wide range of features, supports over 190 languages and supports Windows, Android, Blackberry and other OS. It offers only 3 free plagiarism checks daily, for unlimited checks, users have to upgrade to the premium version.

6. Plagscan

Plagscan tool scans content and internal databases for plagiarized content, it allows users upload multiple documents. Plagscan is an online based plagiarism checker and offers a limited free trial.

7. PlagTracker

PlagTracker is a free software which provides unlimited word plagiarism checks but takes time as documents are usually queued for as long as 30 minutes after which the results are sent to the user’s email.

8. Search Engine Reports

Search Engine Reports tool helps users find content with similar phrases to your own content by searching for those phrases in Google, Bing and other search engines.

9. Small SEO Tools Plagiarism Checker

Small SEO Tools Plagiarism Checker ranks number one on Google for the term “Plagiarism Checker” and it definitely deserves this spot. It shows the percentage plagiarism and each plagiarized phrase.

Small SEO Tools Plagiarism Checker is probably the best free plagiarism checker online, it has a 1000 word limit per search and offers unlimited searches per day. Its results are also highly accurate and it requires no registration, simply visit the website, upload your text file or copy and paste the text you want to check and click submit.

You can try out these tools and stick with the online plagiarism checker which works best for you.

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