How to Check Plagiarism In Your Content? Best Free Detectors

Checking plagiarism in the content before submitting has become a mandatory part of a content writer’s job, right?

It is because plagiarism is prohibited In Google’s content ranking guidelines and writers don’t want to jeopardize their careers by publishing plagiarized content therefore, they take help from the technology.

How to Check Plagiarism In Your Content? Best Free Detectors

Technology is improvising day by day to help writers, students, and marketers. Today we have AI-powered plagiarism checkers that are designed to detect an accurate amount of plagiarism in the text.

But, the problem is that the internet has a plethora of plagiarism detectors and you can not trust any tool that looks appealing to your eyes.

So, what will you do then?

You will test different plagiarism detectors and compare their results to find one tool that shows the most accurate results.

But it will take a lot of time so, let us help you!

We have tested and reviewed several plagiarism detectors to find the few best for all of you so that you don’t have to struggle to find one on your own.

In this post, we will discuss the three best plagiarism detectors that we find great at our testing and you can use them without any doubt.

Top 3 Free Plagiarism Detectors

Here are the top 3 plagiarism checkers for highlighting duplication. We will discuss the features and working of each tool to elaborate more briefly on how the tool can benefit your line of work.

1. Prepostseo

First, in our list, we have a plagiarism checker by Prepostseo, it is one of the finest plagiarism checkers available on the internet.

This plagiarism checker also has a free version that accurately detects plagiarism in every document whether it’s an article or a journal.

The AI algorithm behind this tool makes sure that it detects plagiarism of all types including Patchwork, Accidental, and Incremental.

How does this tool work?

This plagiarism checker works on AI algorithms, it takes source text from the user and then scans the whole source text.

After scanning and analyzing the source text, it starts comparing it with the sources available on the internet and if the source text matches an online source, the tool will highlight it.

The tool uses red color to highlight plagiarized text whether it’s a line or a phrase, you will see the exact percentage of plagiarism in your content near the top of the results, as you can see in the image below:

Prepostseo plagiarism result

This tool will also list exact matching sources in the results so that the users can know from where their content is duplicated.

How to use this tool?

It is simple, just follow the steps given below:

  • Copy/paste your text into the box or upload a file from your device and Google Drive.
  • If there is any URL in the text that you want to exclude while checking, you need to paste that particular URL on the ‘Exclude URL’ input bar.
  • Similarly, if there are any quotations in the text that you want to exclude from checking, hit the ‘Exclude Quotes’ checkbox.
  • Finally, hit the green ‘Check Plagiarism’ button to start the plagiarism-checking process.


  • Supports file uploading options from local and cloud storage.
  • It gives the option to exclude URLs from the plagiarism check.
  • Provides extensive language support.
  • Gives detailed percentage-based reports on duplication.
  • Highlights plagiarized content in the report.

2. Editpad

Next, in our list, we have a plagiarism checker by Editpad, this tool is recommended because it has a very simple interface with several great features.

It allows users to upload files in multiple formats, this tool can run unlimited words at a time which means you can upload any document whether it is an article or thesis report.

The tool allows users to download the plagiarism report once the tool completed its work, users can download the report and share it with anyone.

How does this tool work?

This plagiarism checker works quite similarly to the one we discussed previously, the AI algorithm behind this tool enforces the tool to perform a deep search in order to detect an accurate percentage of plagiarism.

Once the tool is done detecting plagiarism in the source text it displays results in the percentage format, both unique and plagiarized percentages of content will be generated along with the matching source.

Editpad plagiarism result

How to use this tool?

To use this plagiarism checker, follow the:

  • Select the language first, especially if the source text is not in the English language.
  • Enter or copy/paste the source text into the white box.
  • If the file is stored on your device, upload it by clicking on the ‘upload icon.’
  • Hit the blue ‘Check Plagiarism’ button, and done!


  • 20+ language selection menu.
  • Option to apply URL filter from plagiarism scan.
  • Gives plagiarism report sentence by sentence.
  • Supports free and premium access.
  • Shows overall uniqueness and the similarity percentage.

3. Check Plagiarism

Last but not least, it is a fast and efficient tool to detect plagiarism that does not ask its users to get registered and allows them to run 2000 words at a time.

Through the use of this plagiarism checker, you may trace back any copied material to its original author. If the scanned source is erroneous, you have the option of erasing it.

This plagiarism checker guaranteed accurate results and does not store the data in its database so users don’t have to worry about using this tool.

How does this tool work?

This online plagiarism checker works by searching over a vast network of online and offline sources. It scans for duplicate content in blog posts, scholarly articles, and PDFs.

It also finds instances of plagiarised content in historical documents, electronic books, and transcripts of recorded videos.

It displays results in a very appealing format, you can find both results stats and matched sources on the left side, as shown below:

Check Plagiarism plagiarism checker tool

How to use this tool?

Follow the steps:

  • Select the language from the dropdown list at the top.
  • Insert the source text into the tool.
  • Verify the reCAPTCHA.
  • Hit the ‘Check Plagiarism’ button and wait for the results.


  • Checks up to 2000 words per user without login or sign up.
  • Advanced filter option to exclude URLs from plagiarism detection.
  • Supports formats of all significant documents.
  • Available in multiple languages.
  • Enhanced reporting with an individual and overall percentage.

Essential Features of a Plagiarism Checker

You’ll find a number of online plagiarism checkers. But choosing the right one may require some time and demonstration. Therefore, make sure to check the following factors while selecting the ideal plagiarism checker.

File Uploading Option

File uploading options can save you from the hassle of copy-pasting content. You can click one button to upload the complete document file instead of manually selecting the entire writing. This way, you won’t miss out on any content while checking for plagiarism.

Word Filter

Another option that can benefit many writers is the word filtration option. Writers can enter specific terms or words in the filter box to exclude them from plagiarism checks. It may also contain quotations or generic terms that are commonly similar on multiple platforms.

Similarity Score

The ideal plagiarism checker should provide the exact similarity percentage from the complete text. This percentage should relate to the highlighter sections in the report for a balanced check between the unique and plagiarized content.

Summary of Resources

The plagiarism checker should provide a complete summary of resources indicating the matched link with your content. In this way, you can find material online that has similarities with your content. Moreover, you can get an idea about the area of knowledge that is similar to your niche.

Language Support

Any online writing or proofreading tool may support the English language by default. But the online content is not limited to one language only. Therefore, a plagiarism checker should support the majorly spoken languages to provide support for users on a global level.

Security of Data

Another important thing that has become a rising concern in the online world is data security. The writing tools should keep the user’s content a secret. Once the report is generated, the online record should be cleared from the tool or account sources.

No Sign-Up Requirement

An ideal plagiarism checker should provide a word count support of at least 1000 words without login or sign up. Such privilege should be granted under guest usage so the user can get familiar with the tool’s usability before purchasing its premium features.

Final Words

Checking plagiarism in the content is a mandatory task because of copyright infringement issues. It’s a requirement whether you’re related to the academic niche or marketing niche. Performing a plagiarism check can save your reputation.

Moreover, you can learn about the sentences that need improvement to maintain uniqueness. Whether you are a student or a professional writer, plagiarism will affect you and your work negatively therefore, you need to ensure your work’s originality by running it through a plagiarism detector.

The Internet has a plethora of plagiarism detectors but, trusting them all is not a safe option therefore, we rounded above the 3 most effective tools that we find great in our testing and reviewing. We elaborated on the features and working of each tool so you can find the ideal option that meets your requirements.

Firaol Birhanu
Firaol Birhanu

I am Firaol Birhanu, owner of the Fira All Reviews blog. I am a part-time online marketer and have been working on online marketing since 2017. The Fira All Reviews blog provides you with a valuable and relevant source of information on career opportunities, online business, as well as reviews on digital products, software, and online services.

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