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Check for unintentional plagiarism

Scan your paper the way your teacher would to catch unintentional plagiarism. Then, easily add the right citation.

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Don't give up sweet paper points for small mistakes. Our algorithms flag grammar and writing issues and provide smart suggestions.

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What students are saying about us

"The plagiarism checker is super helpful for finding the places where citations belong within a paper."

- Heather B.

"The grammar checker is definitely better than any program I have used."

- Melissa D.

How we'll help you improve your paper

Features Free Account Citation Machine Plus
with 3 Day Free Trial *
Then, $9.95 a month
Suggestions to improve your writing style,
grammar and sentence structure
Only 5 Suggestions Unlimited
Checks for unintentional plagiarism None Unlimited
Add a bibliography and citations
directly to your paper
Yes Yes
Quickly and accurately create citations from
multiple styles and source types
Yes Yes

All-in-One grammar and plagiarism checker

The only thing harder than writing a paper is editing it.
Nobody’s perfect, and grammatical errors are all too easy to make. But a grammar checker could help! That’s where Citation Machine Plus comes in: a one-stop shop that pairs a top-notch plagiarism checker with a complete grammar check. It’s the perfect companion for any student. Whether you’re an expert writer who just needs a second look or could use a full-fledged crash course on brushing up your writing, we’ve got it covered.

We offer smart technology you can access day or night, for all your last-minute deadlines. Citation Machine Plus’s built-in tools can help ensure you didn’t accidentally use someone else’s words without referencing them. If it does find an issue, you can use its citing tools to quickly create a citation for it.

To power up your paper even more, our tools offer an easy spelling check and the best grammar checker we’ve ever built. Our powerful software will run a quick grammar check and spell check to catch big and little mistakes on your paper.

We think Citation Machine Plus is the best grammar checker for a fast grammar analysis and spell check to catch things you may have missed! Whether it’s an issue with subject-verb agreement, a fragmented sentence, a dangling modifier, incorrect usage of an interjection or adverb, or just a grievously misused comma, our software hunts down and points out those easy-to-correct mistakes. Plus, our program includes a reliable spell checker to help catch and correct any typos.

The only question is: What are you waiting for?

Try Citation Machine Plus and get a free grammar check for your paper, scan your paper for text that may need a citation, and rest easier knowing your paper’s had an extra review before your teacher sees it.

Plagiarism matters more than you think

You might define plagiarism as copying someone else’s work, whether by copying another student’s paper or taking passages directly from research sources and passing them off as your own work. But did you know that it’s not just about literal copying, but about making sure you credit your sources.

Think about it: would you want someone to take your hard work without crediting you? Of course not! So it’s important to make sure that you don’t accidentally use the work and research of someone else without giving them the credit they deserve and that formatting requires. A plagiarism check provides you with peace of mind that you haven’t forgotten to cite sources.

A paper check for peace of mind

Plagiarizing the works of another writer is a big deal in school and in life. Even if it’s a mistake, it’s the sort of mistake that no one wants to make because it’s a pretty serious issue. Luckily, it’s pretty easy to avoid if you have the right tools at your disposal! The first step to avoiding it is knowing what it is.

One plagiarism definition — probably the most commonly discussed one — is to directly steal somebody else’s words and pretend they are yours, or, alternately, to use someone else’s words and not give them credit. These actions are deliberate attempts to deceive, and they do happen in real life. More often, however, issues arise from not from intentional misconduct, but from innocent or careless mistakes that simply give an impression of copying because sources haven’t been credited as they should.

Most teachers ask you to cite the works of others so you learn to be an ethical researcher who does not plagiarize. In many cases, teachers will use a plagiarism tool to make sure students are following guidelines. However, with so many assignments, chores, friends, and other parts of life going on, it can be difficult to keep track of everything.

That’s why getting a plagiarism check — like the one from Citation Machine — can save you from forgetting to cite sources. It’s simple to use, catching missed citations and other errors. Finding and correcting these problems before you turn in your paper can make the difference between a stellar grade and a failing one.

Still not sure about it? Try our essay checker with Citation Machine Plus for free. Simply copy and paste or upload a paper into our tool and immediately get a grammar check!

Snag an intelligent paper check

Personalized writing suggestions at your fingertips? Yes, the dream is real, and it’s right here at your fingertips, thanks to the easy-to-use Citation Machine Plus paper checker. But that’s far from the only thing it can help you with.

Why wear out your own tired eyes after you’ve already researched, written, and proofread that long essay or term paper? Even the most attentive student might miss a minor detail or in-text citation when reviewing their own paper. Instead, use our software to check your paper and catch missed citations or accidentally copied passages of text before you turn it in. With Citation Machine Plus, a smart plagiarism check is only a few clicks away, allowing you to catch missed citations or accidentally copied text.

So why not try it out? It’s free to scan a paper and can help catch those pesky errors hiding in your text, even if it’s as simple as a quick fix of a pronoun or a missing preposition. And with an affordable subscription plan, you can upgrade and unlock all of our powerful writing and citing tools.

How a plagiarism check helps you

We often think of citing sources to avoid plagiarizing as something that helps other people, because it’s focused on correctly crediting the work done by others and not passing it off as your own or accidentally implying that it’s your own by failing to cite sources. But using a plagiarism checker to do this actually benefits you, the student, too!

When you submit your paper to be double-checked and to make sure that you haven’t plagiarized in any way, you’re also protecting yourself. How does that work? It’s all based on the way these tools function in the first place. Most of them are built around algorithms that compare uploaded papers to a vast database of existing work. This may include research databases of published works (think papers in academic journals, books, newspapers, and other print and digital sources), as well as information found online on websites.

So when you submit to a free plagiarism checker — or a subscription-based one — you’re comparing your own writing to other writings online. Your essay is checked using algorithms. How does this help you? In short, it protects you from accidentally getting a reputation as a plagiarist. Once you’ve uploaded a paper, the checker will scan your writing to make sure that your writing is wholly your own, saving you plenty of headaches and ensuring that your original ideas are shining through clearly with support from sources, rather than borrowing too heavily from other research.

If that’s not reason enough to use a checker, then remember this: if you’re in any sort of formal writing class, whether in high school or in college, your teacher is very likely to have access to a checker through their department. “Check paper for plagiarism” is at the top of the to-do list when teachers sit down to grade papers — in fact, many have a rubric that has a section for academic honesty and proper citations.

Since your teachers are already using this kind of software, wouldn’t it be great if you could too? The great news is you can! A Citation Machine Plus subscription gives you access to a set of tools built specifically for students, allowing you to check your paper on your own, before even submitting your work for grading. The more you check on your own, the more you learn, which can help you avoid making mistakes in the future.

But that’s not all.

So, what is plagiarism?

Let’s start with the basics. You might be surprised about what really counts in the overall plagiarism definition. For instance, have you ever heard of incremental plagiarism? Also called “patchwork,”  this happens when you take bits and pieces from multiple sources, without citing, and pass it off as your own work. This is common with specific turns of phrase or ideas, but it’s also what can happen if you aren’t careful with citing all sources. A paper-checking service can help catch these issues before they get to your teacher’s desk.

When we talk about plagiarism, we’re talking about a wide variety of issues. It can mean deliberately copying from another source, whether it’s a book, an academic paper, or the work of a classmate or previous student. Using services that do work on behalf of a student, then put the student’s name on it, also falls into this category. As described above, deliberate incremental plagiarism — usually plagiarizing multiple sources and combining them to avoid detection — is also a major problem.

The above examples are probably the first answers that come to mind in response to the question “what is plagiarism?”, but there’s actually a lot more to it than that. Most of us wouldn’t intentionally plagiarize, but there are plenty of instances where you might do so without even realizing that you’ve done something wrong!

For instance, forgetting to cite a quoted source might result in the quoted passage tripping the algorithms when your teacher runs it through a paper checker. Or perhaps you’ve synthesized the information from your research, but you’ve inadvertently reused some particularly distinctive language from one of the original sources, making it appear like intentionally copied text even though it’s really not. Citation Machine Plus tools can help you avoid these accidents by proofreading your paper to catch any instances that could count against you and helping you fix the issues.

Here’s a detailed article if you’d like to learn more about avoiding plagiarism.

Why we cite

What do teachers want to see in your papers? When it comes to writing style, teachers will pretty much always understand that every student will have a different voice, but they’ll still be looking for certain elements that every paper should have — like citations. Essentially, the idea is to make sure that an essay has original ideas and arguments and cites sources where it uses existing information.

Remember the Golden Rule? Do unto others as they would do unto you? Most of us would not want others to take credit for our ideas, so we don’t intentionally steal someone else’s words. But with so much information in the world, it can easily occur by accident.

Unfortunately, it happens both intentionally and unintentionally enough that teachers often take student work and run it through a scan to make sure the content is original. That’s right, even teachers sometimes use online tools from a subscription-based or free plagiarism checker. It’s even a required step for many writing classes at any level, so make sure that your paper is prepared for these kinds of checks.

That being said, no teacher really wants to flag any student’s paper, and no student wants to be flagged. That’s one reason citations are so important and a vital part of ethical research and writing. When you cite your sources correctly, you’re giving credit to the originators of the ideas or quotes, which means that there’s no plagiarizing going on — just good old-fashioned research.

When you first start learning to cite your sources, you probably learned just one overall style guide. In college and in the real world, though, the style guide you’ll need to use will depend on what field you’re in. For instance, academia often sticks with Chicago citation style, while the arts and humanities tend to prefer MLA, and APA is favored by the social and behavioral sciences.

So you need MLA format help? We got you covered! How about APA format instead? No problem! We’re all over that, too! In fact, we have many more styles. Our classic citation tools are available for all your formatting needs.

Here’s the best part: using our tools could help you expand your knowledge for the future! Our citation formatting tools can help you become more familiar with the most popular style guides — which will make your life easier when you go to write more essays in the future! Curious about these benefits and how it works? Here’s a great place to

Citation Machine Plus: More than a plagiarism tool

Citation Machine Plus is much, much more than just a way to check plagiarism — you can scan for grammar errors, too!

Unsure if you could benefit from a Citation Machine Plus subscription? Submit your paper for a grammar and spell check with up to 5 suggestion cards for free. A simple copy and paste or paper upload, a few clicks, and it’ll start reviewing your paper. Is an adjective used incorrectly? Is a determiner in the wrong spot?

That’s where the all-in-one Citation Machine grammar checker and spell checker comes in! With this simple but powerful software, writing can be scanned for grammar mistakes. Some of the most common errors are actually some of the simplest to fix. Even better: as you learn, you’ll make fewer and fewer of them.

The tool will highlight any errors, plus more! In fact, the tool can sometimes even tell you why your mistakes are mistakes and help you correct them. That’s why we think our grammar check is the perfect helper for your papers: it doesn’t just help to catch your errors, it also helps you learn from them so that you can improve your writing over time.

Hypothetical situation (or is it?): You have just finished writing a paper for class. Maybe you spent hours writing it, maybe you only spent an hour on it. Either way, wouldn’t you feel better turning in your paper if it was proofread and reviewed?

Everybody wants an A+. The only way to get there is through practice, hard work, and learning. Citation Machine Plus writing tools can help you develop your skills by identifying potential errors in your paper. That way you can improve your paper and learn what grammatical points to focus on in the future.

Help with formatting

As it’s more than just an essay checker, the Citation Machine Plus suite of tools has a few more tricks up its sleeve! As the name implies, these tools are built for equipping you with simple, easy-to-use citation tools to help you build a bibliography for your paper.

Citation Machine Plus: Your go-to writing source

So now’s the time to stop stressing over writing errors, accidentally plagiarizing others, and citation concerns. Let Citation Machine Plus help you write well! It’s the writing companion that can help to take your academic writing to the next level, and it will give you tools you need to become a better  writer both in and out of academic contexts.

Turning in essays for class can be stressful enough on its own, but that stress can just get compounded with worries about grammar and citations. There’s no need to stress when Citation Machine Plus is at your disposal! Its tools are easy to use, all-in-one platform that helps take the worry out of writing a paper when it comes to grammar and citations. Check for everything you need, all in one place, and learn more about how to make your writing truly shine.

Whether you need a quick check of your conjunction, noun, or verb usage, a complete grammar check, a thorough plagiarism tool, or reliable help citing sources, invest in a subscription to what we believe to be one of the most user-friendly citation tools online—Citation Machine Plus!

Easy citation creation

Let’s be honest, citations are a hassle. But the great thing about a paid or free online plagiarism checker is that you can pull double duty: when you check for plagiarism, you’re also checking to see if you’ve left out any citations! We wanted students and authors to have a one-stop shop when it comes to citing; a citation creation tool at your beck and call.

And now you do!

In addition to our paper checking tools, we have citation tools! Citing sources not only makes your work more professional, it is generally required for any formal papers or research projects. Any time you use the words or direct concepts of others, it’s vital to give credit where it’s due, and a proper citation is the means to do that. Remember: when we ask “what is plagiarism?” the answer includes improperly cited sources along with intentional copying! Teachers can often use a paper-checking service through their schools, so we’ve developed similar tools for students to use.

Our classic citation tools make it easy to create a correctly-formatted citation for APA format or MLA format citation styles. ** We have taken the hassle out of citing your sources, and — trust us — you will notice the difference.

** The APA and MLA are not associated with Citation Machine, but our citation services follow their styles.