Grammarly is one of the most known online grammar and spelling checkers. But, besides rectifying grammatical issues in a sentence, one of the most useful features for professionals and professors is Grammarly’s plagiarism checker.
The Grammarly plagiarism checker detects similar texts and sentences which is similar to that in your document. Grammarly and Turnitin both provide similar services, but which one do you choose?
Both the plagiarism checker application makes several multiple tools. However, these tools are different for different kinds of needs. You might notice that Grammarly advertised its service in such a way that it is made for the benefit of both educational and professional settings.
Key Takeaways
- Grammarly and Turnitin are online tools used for checking the quality of written content, but they serve different purposes.
- Grammarly is a writing assistant that checks grammar, spelling, and punctuation errors, while Turnitin is a plagiarism checker used mainly by educators and students.
- Grammarly provides suggestions for improving the clarity and style of the text. At the same time, Turnitin compares the submitted work with a vast database of academic papers to detect any instances of plagiarism.
Grammarly vs Turnitin
Grammarly is a tool for improving writing, primarily a grammar and spell checker, offering suggestions for improving writing style, tone, and clarity. Turnitin is a plagiarism checker that compares written work to a database of sources to identify instances of potential plagiarism.

Here, Turnitin software focuses mainly on people who teach. Turnitin provides tools like Gradescope (a grading tool) and Revision Assistant (a tool that allows instructors to provide feedback on a student’s work).
Comparison Table
Parameters of Comparison | Grammarly | Turnitin |
---|---|---|
Character Limit | 100,000 | 25,000-30,000 (Average) |
Online Database | 1.7 billion+ websites | 1.7 billion+ websites |
Offline Database | Yes(collab with request) | Yes(Proprietary database) |
Response Time | 5 out of 5 stars | 2 out of 5 stars |
Extra features | 5 out of 5 stars | 2 out of 5 stars |
Reliability | 4 out of 5 stars | 5 out of 5 stars |
What is Grammarly?
Grammarly is an application where one can proofread and check the grammar of their documents. Grammarly is one of the most known online applications used by professionals all around the globe.
The application is based on 400 rules of grammar. The application detects errors in spelling, punctuation, passive voice, unnecessary word input, vocabulary mistakes, comma mistakes, and many more errors.
Grammarly provides its users with many other tools, like the plagiarism checker, and now it has added an Add-on feature suitable for working with advanced software.
Grammarly has been the first choice for most office working people, professionals, teachers, and many others because it boasts itself as the most trusted application in the world.
Grammarly’s extra features are a Grammar checker, plagiarism checker, proofreader, and detects writing styles. The AI-powered product is simple, easy to use, and available for free and paid. Of course, the paid version will give users much more features than the free version.
The main difference between Grammarly and Turnitin is that the plagiarism checker of Grammarly is not that good compared to Turnitin’s plagiarism checker. Turnitin can check for similarities in its database, and of course, Grammarly has this feature.
Grammarly becomes very handy for students at a beginner level in the English Language. It helps them rectify the mistake and guides them about how they went wrong.

What is Turnitin?
Turnitin also is one of the great software developed back in 1997. The software was developed primarily to detect copied content in your document. This American Internet-based website identifies duplicity sentences and alerts you with a certain mark in the plagiarised sentences.
The Turnitin website is the best tool for students, content writers, teachers, and people who are into blogging and stuff. Turnitin provides its users with features like the reminder via E-mail, which is awesome.
This tool helps work as a reminder to the students who have done their assignments and who did not.
Some other attractive features are that it allows you to submit images and can even allow you to upload all types of files. However, Turnitin does not allow any student or any user to use their services for free, but on the other hand, one can use the Grammarly checker for free.
Turnitin tied up with different schools and colleges worldwide to spread their services. Turnitin has been helping educators and learners to bring in the enthusiast in passion for learning since 1997.

Main Differences Between Grammarly and Turnitin
- Grammarly does provide some of its services for free, whereas Turnitin does not provide any free services. This strategy helped Grammarly penetrate the Indian market.
- Grammarly provides a free grammar checker, whereas Turnitin does, but you need to contact your account administrator to enable the grammar checker for the account, which becomes irritating.
- Both Grammarly and Turnitin have a large database. Turnitin’s database of its students will make sure that no one gets away with plagiarism. Grammarly’s plagiarism database is quite extensive too.
- Grammarly Plagiarism Checker scans sentences, meaning that if you change one word from that sentence, you might eliminate the plagiarism in that sentence. Still, Turnitin scans every word, letter, and symbol. So you cannot change a word from a sentence because it will still be marked as plagiarised.
- The reliability score is much better of Turnitin than Grammarly but lacks the extra features that Grammarly provides its users.