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Free Copyscape Alternatives 2023 (Plagiarism Checker Tools)

Free Copyscape Alternatives 2023 (Plagiarism Checker Tools)
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Are you looking for reliable and free Copyscape alternatives in 2023? Do you want to ensure that your content is genuinely original, but are finding yourself strapped for cash? Don’t worry – even as powerful tools like Copyscape become increasingly expensive, there are plenty of free alternatives out there for writers and businesses seeking to protect their original works.

Copyscape has been an industry leader in helping writers, editors, and students detect copied content, but it comes at a cost. So, in this blog post, we’ll explore some of the most effective and free Copyscape alternatives available today!

5 Copyscape Alternatives to Check Content for Free:

1. PREPOSTSEO Plagiarism Checker (Free, Ad-Supported)

PREPOSTSEO provides an easy-to-use plagiarism-checking tool that helps users quickly detect plagiarized text in any content. It is a freemium plagiarism checker with different unique features. So, how is it considered a good alternative to Copyscape?

To understand that, we need to check out its features and functionality. Let’s start off with functionality. This is a tool that can check any content from the web for plagiarism. However, unlike Copyscape, you can also provide the tool with raw text for plagiarism checking.

PREPOSTSEO Plagiarism Checker - Free Copyscape Alternatives

Moreover, you get to see a detailed plagiarism report, even without the paid version. This report not only contains the links of all sources that were plagiarized, but it also underlines the parts that are copied in the given text.

You also get to see the exact percentage of plagiarism in the text. These are all features of the premium plan in Copyscape. The fact that you can get them for free with Prepostseo is very surprising, but welcome.

Of course, as this is a freemium tool, the free version has some restrictions on it. The most obvious issue is that it only lets you check 1,000 words for free. 1,000 words are a lot, but they also aren’t enough to check long-form articles. So, if you are stuck with long-form content then you have to either look for an alternative, or you have to pay for the premium version.

Pros and Cons of PREPOSTSEO Plagiarism Checker


  • Freemium
  • Detailed report
  • Easy to use


  • Annoying Ads

See Also: 10 Websites like The New York Times

2. Check-plagiarism.com (Free, Ad-Supported)

Check-plagiarism.com is a powerful plagiarism-checking tool that helps millions of users in checking the uniqueness of their content. This is yet another freemium tool, but its free features are good enough to warrant picking it over Copyscape.

Check-plagiarism.com - Free Copyscape Alternatives

With the free version of Check-plagiarism, you get to upload files for checking from your own device. You can also simply copy-paste your content. You also get some extra features like being able to exclude certain sources from the checking process. You can do that by providing their link after clicking on the “Show Advance Options” button.

Of course, this would not be a good Copyscape alternative if it didn’t provide a great plagiarism report. Here’s what you can expect to see in the plagiarism report:

  • The exact percentage of plagiarism
  • Copied sentences are highlighted in red
  • A list of URLs for all sources that were copied
  • An option for downloading the report

This checker checks each sentence individually instead of checking an entire passage. This can sometimes lead to problems, and the exact plagiarism figure can change. However, the change is not so drastic that you can disregard the entire result.

This tool has more accurate results, the longer your content is. And it has one thing over all the freemium tools in this list; its word count. The word limit for free users is a whopping 2,000 words per session. This is an amazing feature and enables you to check even medium to some large-sized articles.

Pros and Cons of Check-plagiarism.com


  • Intuitive UI
  • Good features
  • User friendly


  • Ads
  • No Free Report downloading option

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3. Paraphraser Plagiarism Checker (Free, Ad-Supported)

Paraphraser Plagiarism Checker is widely used by students, researchers, bloggers, and webmasters. It helps them to detect traces of plagiarism in the content by using advanced AI technology. This is also a freemium plagiarism checker, so most people can use it for free with some limitations.

Paraphraser Plagiarism Checker - Free Copyscape Alternatives

In its free version, users can check up to 1,000 words which is pretty standard for a free tool. In the premium version, this number gets bumped up to 5,000 which is enough for most long-form content (2,000-3,000 words).

Users can upload their files for plagiarism checking, or they can copy-paste their content directly into the tool’s input field. This is already better than Copyscape where you can only provide URLs of the published content.

Moving on, we get to see the plagiarism report that is generated once the check is complete. This tool is also a sentence-wise checker, meaning that it checks complete sentences for plagiarism. All unique sentences are written in green\cyan, while the copied ones are shown in red.

The percentage of plagiarism is also given in clear figures. Where the red figure shows the degree of copying, while the green figure shows the degree of uniqueness. In this way, users have a clear idea about their content.

As is customary for any good Copyscape alternative, the list of sources that had been plagiarized is also shown. Users can use this information to cite their sources as well as double-check the results of the tool.

Pros and Cons of Paraphraser Plagiarism Checker


  • Easy to use
  • Fast performance
  • Simple UI


  • Ads in the free version

4. Plagiarism Checker by Aresearchguide.com (Free, No Ads)

This plagiarism checker of aresearchguide.com is a standalone tool like Copyscape and not part of a toolkit. The good thing about this tool is that it is completely free. On top of that, it does not impose any restrictions on the user, so you can use it without any worries.

Plagiarism Checker by Aresearchguide.com - Free Copyscape Alternatives

As an alternative to Copyscape, it is an excellent tool. It shows the exact amount of plagiarism in your work, and it even highlights the parts with a red color.

It is also quite easy to use. Users only need to input their content by either uploading it or writing/copy-pasting it in the input field. Since there is no input limit, users can check both short-form and long-form content without any problems.

Once the plagiarism checking is done and the copied text is highlighted, users can click on the “Show all matches” button. This open’s a list of all the matched sources along with their URLs and a similarity index.

Users can also check which sentence is from which source by clicking on the “Show” button under the “View in the text” category. This makes the user jump straight to the part in the text that was copied from that source.

Pros and Cons of This Plagiarism Checker Tool


  • Completely free
  • No word limits
  • No ads
  • Easy to use


  • No option for downloading the plagiarism report

5. Studyclerk Plagiarism Checker (Free, No Ads)

Studyclerk Plagiarism Checker is another free alternative to Copyscape. It is completely free to use and it does not have any restrictions on it either. This makes it an excellent alternative to Copyscape where you have to rely on the premium version.

Studyclerk Plagiarism Checker - Free Copyscape Alternatives

To use this plagiarism checker, users have to input their content using standard options such as file uploading or copy-pasting. Then they have to confirm their decision and, in a few seconds, they will get their results.

The output of this tool is really good. It generates a succinct report that is easy to read and understand.

You can see the uniqueness of the text, which needs to be over 90% if you want to publish your content anywhere. You can also see all links to the copied sources as well as their similarity index.

Pros and Cons of Studyclerk Plagiarism Checker


  • Completely free
  • No ads
  • Intuitive UI


  • Cannot download the plagiarism report

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And there you have it, five great alternatives to Copyscape. Since Copyscape is a premium tool, i.e., you have to pay to get the most out of it, its alternatives could have been paid tools as well.

However, we have shown you both free and freemium alternatives which are overall, much more accessible. All of these tools provide the core functionality that people want from Copyscape which is a detailed plagiarism report.

So, with these tools, you can continue to check your work for plagiarism without using Copyscape.

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