Best Free Plagiarism Checker for Teachers

Best Free Plagiarism Checker for Teachers

The best plagiarism checkers allows teachers to check if your students content is being stolen or copied. How can teachers decide which online plagiarism checkers are worthwhile? We’re here to help.

As a teacher, you should ensure that your student's content is original. So, start using these free plagiarism checkers mentioned here to verify your students' content originality.

Here are our picks for the best free plagiarism checkers for teachers:

1. Grammarly

Grammarly is a widely used tool for checking grammar and plagiarism. This application can detect plagiarism from numerous web pages. It helps you to know whether your text contains duplicate content or not. Every teacher and student can take advantage of this app, which works on pretty much any device you can think of. 

Grammarly provides plagiarism alerts when text matches with online text or in the database. It helps you to detect plagiarism by checking your text against over eight billion web pages. The basic version is available for free that only checks the content to detect grammar errors. The premium version’s includes a plagiarism checker, advanced writing feedback, and more.  If you’re looking for an all-in-one tool, Grammarly’s Premium plan is the way to go. 

Best for: Comprehensive writing feedback including plagiarism, grammar and spelling errors

2. Turnitin

Turnitin is the best-in-class plagiarism checker for teachers and students, as well as businesses that create online content. Compared to other well-known plagiarism checkers, Turnitin is more accurate and detects more plagiarism.

It’s a very popular choice for schools and universities, who find the service well worth the price. Teachers will benefit from the detailed online plagiarism checkers Similarity and Originality, which not only look for outright copying but can even identify text spinning and contract cheating. Like many other plagiarism checkers, Turnitin identifies sentences that are exactly the same as in the original source.

Unfortunately, students cannot use Turnitin for free. Turnitin only makes its plagiarism checker available to schools, universities and other institutions. For schools looking to subscribe to a program that helps students write better papers while keeping plagiarism in check, we recommend Turnitin.

Best for: Schoolwide Use

3. Scribbr

Scribbr is one of the students’ best choices in plagiarism checkers in the market. Its accuracy is designed to detect any type of plagiarism present in your work as it is checked against their large source database.

Scribbr’s database includes journals and books, which gives them quite an advantage over other plagiarism checker alternatives. This is the reason why Scribbr is preferred by a vast number of students to detect plagiarism.

Scribbr offers a limited free version that’s perfect for checking if your paper contains potential plagiarism. Live customer support is offered in multiple languages to assist users.

Best for: Large plagiarism database, support 20 languages

4. is a Plagiarism Checker for teachers, professors, students, and large organizations like universities and colleges. This online tool performs deep and accurate checks of academic works, detecting the changes in sentence structure and the words replaced with synonyms. What’s more, this checker minimizes false alarms, recognizing appropriate citations.

PlagiarismCheck has no cooldown period, helping teachers work faster and encouraging students to pre-scan their papers to avoid accidental plagiarism. It’s a great combination of the advanced algorithm, Google Docs add-on, easy integration with Moodle and other similar platforms. Interactive reports allow instructors to comment on any sentence or word in the text, so students can instantly understand their feedback. There are multiple ways to use plagiarism checker since this tool is designed to be effective, simple, and convenient. 

Best for: Checking academic works fast, avoiding accidental plagiarism.

5. Quetext

Quetext is an advanced plagiarism checking tool for teachers and students. Using its own proprietary technology, Quetext leverages advanced algorithms to scan and compare documents to an extensive database of sources which includes web pages and online documents, academic papers, and its own databases. 

Quetext can handle a variety of common file formats including Microsoft Word documents (.doc and .docx), plain text files, and PDFs among others. 

Quetext basic version is free that supports 5 free checks, contextual analysis, fuzzy matching, color grade feedback, and conditional score. The Pro version costs $9.99 per month that comes with additional features, such as citation assistant, downloadable originality report, interactive snippet and more.

Best for: checking academic courses and news sources 

6. Duplichecker

Duplichecker is an online anti-plagiarism tool that allows you to check duplicate content on the web for free and correct grammatical errors.

Duplichecker is free and includes extra features such as spelling verification and batch checking. If you wish to be using the scanner for free, you can only perform one test per day and the text can’t be longer than 1,500 words.

It is available in 18 languages and supports various file formats, including web page URLs. Duplichecker uses AI technology to detect minor traces of plagiarism and pick exactly matched content. It can also identify paraphrasing by comparing the content with millions of sources.

7. Unicheck

Unicheck is a versatile tool for plagiarism detection. Unicheck plagiarism detector, designed specifically for educators and students, can analyze papers in full detail against the Internet, accessible and proprietary educational databases.

Unicheck plagiarism checker is a sophisticated piece of technology that delivers advanced features for effective teaching and assessment. Created specially for teachers, Unicheck can scan papers against the Internet, open-access and private educational databases in real-time. This plagiarism checker can be easily integrated into major learning management systems (Google Classroom, Schoology, Canvas, Moodle, etc.). 

The plagiarism report is automatically generated within a few minutes of assignment submission for grading. The educator can view scan results both online or download a .pdf file. Unicheck offers a 3-week trial period for educators and up to 6 months for academic institutions. Unicheck has a quick free checker that scans up to 200 words. 

Best for: Basic Plagiarism Checker

8. PapersOwl

PapersOwl is a free online plagiarism checker that offers top-quality service for all file formats. The unique feature of this tool is the usage of an AI-supported writing assistant. You will get features like data safety, a real-time content checker, and a deep search.

If you need to check any kind of paper with the service, copy-paste your text into a special box, add a file from your PC, and simply wait for the result. Besides the uniqueness percentage, a list of sources will appear where similarities have been detected. The overlaps with other text will be highlighted for the user’s convenience.

Using it is extremely easy for all kinds of users, and the process does not take too much time. The option of downloading the text analysis might come in handy for many users.

9. Plagramme

Plagramme is the free plagiarism checker for teachers that has a database of more than 14 trillion documents. The finder detects bad and improper citations, knock-offs, paraphrasing and all sorts of quirks and issues with the text in almost 20 different languages. 

It features real time plagiarism checking. The process starts with detection of the possible types of plagiarism - copy and paste plagiarism, invalid sources, mosaic plagiarism, auto plagiarism, etc.  Plagramme provides free access to their plagiarism checker for teachers, professors, and educators.

Best for: Free Checker For Teachers

10. Copyscape

Copyscape is the best and quick plagiarism checker online tool to check the uniqueness of the content. You can upload a PDF, DOC, DOCX, RTF, and TXT, as well as paste the content or website’s URL directly into the search engine. 

You can use it for all kinds of content, ranging from blog posts to LinkedIn profiles to social media posts. Plagiarism detection is Copyscape’s only purpose. Unlike other software, it doesn’t check grammar, spelling, or anything of that sort. 

You can find many different types of plagiarism checkers online. These tools come with varying features that suit different purposes. Ultimately, plagiarism checkers not only enable you, as an educator or content developer, to create meaningful learning experiences, but they also allow learners to understand the importance of using their own words when building upon skill sets and expanding their own knowledge base. 

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