The Best Grammar Checker
I bought & tested 7. Here are the results.

Bad grammar is everywhere.

But it doesn’t have to be — and you don’t have to have a degree in English to make sure your grammar is on par. All you need is a grammar checking tool.

Chances are that you have already had to verify your grammar at some point in your life. And if you haven’t, you will.

A grammar checker can help you take your writing to the next level, whether you’re a professional writer who needs to check an article or you’re a student who just needs to double check an essay before turning it in.

Or maybe you just want to be sure that the latest email you’ve written is free of any silly spelling and grammatical errors before hitting “send.”

You can even use them to verify your writing in a non-native language. And grammar tools can also help you advance within your career.

Research shows that professionals who earned one to four promotions over ten years made 45% more grammar mistakes than those who earned six to nine promotions within ten years.

Shocking, right?

The best part about most grammar checkers? Most of them are cheap (or free) and easy to use! But which ones are the cream of the crop?

Luckily, we analyzed seven grammar checking tools so you don’t have to. Before we dive in, let’s analyze the criteria we use to “grade” each grammar tool.

How We ‘Grade’ the Best Grammar Checkers

We chose seven grammar checkers to grade and closely analyze, comparing pros, cons and cost to help you choose which one will work best for your needs.

The seven tools we’re going to discuss are:

Citation Machine

The methodology for how we review each tool includes looking at criteria such as:


Is the tool easy to use/does it have a solid user interface? Are similar issues grouped together to help the writer learn how they can avoid common mistakes and improve their writing?


Does the tool consistently uncover the same issues, such as commas, punctuation, misspellings, etc?


How well does it check for comma use, parts of speech, hyphens, or words that are used incorrectly although spelled correctly?


Can the tool measure conciseness and/or give the writer suggestions to write with more clarity?


Does it offer a feature that checks for instances of plagiarism? If yes, how well does it work?


Are there daily, weekly, or monthly word or page limits and/or or file/page upload limitations?

Grammar Rule Source

Does the tool offer up any information about how they check content? What type of grammar rules are used and from what sources? (e.g., APA, MLA)


Does the tool offer a feature that allows users to export reports? If so, how useful are they, what’s on them, and what formats are available?

Device Compatibility

What devices does the tool work with? Does the tool offer a mobile app, a browser extension, or some kind of Google doc/Microsoft Word compatibility?

Human Reviews

Does the tool offer the ability for human review? If so, how does this feature work and how much does it typically cost?


Can you check grammar in different languages? If so, how many and which ones?

Customer Service

How well is the customer service provided by the grammar checker, if any is offered? Are multiple options available like live chat, email, or a knowledge base?

Plans and Pricing

How do the plans and pricing offered compare to the available features and other grammar checkers on the market?

Let’s take a closer look at Grammarly first.

1. Grammarly

Grammarly, developed by Grammarly, Inc., offers AI powered solutions to “help people communicate more effectively,” according to the About Us section of their website.

Grammarly software is cloud-based and loaded with algorithms that flag potential problems within a text while also suggesting corrections for users.

The tool can check for a large range of issues, like grammar, spelling, wordiness, style, punctuation, and plagiarism.

Here’s what makes Grammarly great, along with the cons of the service.

Grammarly Pros

Great Usability

For starters, the usability of the service is a breeze. On the web browser, all you have to do is type or paste your own text (or add a document) to begin your grammar checking quest.

The tool then detects issues with your writing and offers suggestions that can be inserted into your writing with one click.

A detailed explanation is given for each error to give users a better understanding of why Grammarly flagged that section of text.

Very Sophisticated

In addition to being easy to use, the tool is also features some very sophisticated elements. Grammarly catches most punctuation errors, including double period usage and passive voice.

The company even has an entire article devoted to when and how passive voice should — and shouldn’t — be used.

It can even measure conciseness, which is something that most grammar checkers don’t offer at the basic level.

Measures Conciseness

Grammarly can measure conciseness by checking for wordiness or words that are used redundantly.

This can be especially useful in formal writing situations, short emails, or blog posts and articles where writers need to get to the point quickly and efficiently without tons of extra fluff.

Plagiarism Checker Available

Whether you’re a student, a working professional, or a blogger, you know how serious plagiarism is.

And you likely want to avoid it at all costs by removing plagiarized content and making sure that you cite every section of your writing that was taken from another source.

The plagiarism option offered by Grammarly is extensive and fairly accurate.

The company claims to check text against “16 billion web pages and ProQuest’s databases” for instances of plagiarism.

Unlike other insights within the tool, plagiarism isn’t checked automatically. Users have to click the “Plagiarism” button on the bottom right hand of the screen.

Then, a percentage score out of 100 is given for how closely your text matches other sources.

The only catch? This feature is only available with a paid Grammarly plan.

Transparent Grammar Rule Sources

Grammarly checks writing with the following style guides:

  • The Chicago Manual of Style
  • APA 6th edition
  • MLA for citation style guides
  • Swan’s Practical English Usage
  • The Cambridge Grammar of the English Language for grammar guides

Limitations Are High

In a 30 day period, users can check up to 300 documents or up to 150,000 words. In a 24 hour period, users can check up to 100 documents or 50,000 words.

You can check up to 60 pages (or 100,000 characters with spaces included) at once. With Grammarly for Microsoft Word and Outlook, there are no page limitations.

Documents cannot be larger than 4MB, but Grammarly supports Microsoft Word docs and Open Office docs, in addition to .txt and .rtf files.

These are much larger limit ceilings than most grammar checkers on the market offer.

Detailed Reports are Available

You can download detailed grammar reports with the click of a button in Grammarly.

And the reports include every insight given for your text, including your overall score, number of writing issues, and more.

The report even lists out the exact descriptions of each issue in your document.

Device Compatibility

Grammarly doesn’t seem to have many device limitations.

It’s available on iOS, Android, a web or mobile browser, and via browser extension. Grammarly offers a browser extensions or Chrome, Safari, Firefox, and Edge browsers.

The Grammarly desktop app is also available for Mac or PC, and it’s compatible with:

  • Windows 7, Windows, 8, Windows 8.1, and Windows 10
  • macOS 10.9 and higher

With a Grammarly membership, users can access the tool on up to five different devices simultaneously.

Human Reviews are Available

If you need a human review for your text, article, or document, Grammarly can help. But they come at a small cost, depending on how fast you need your document returned.

It costs $0.03 per word to receive your document back in 24 hours, $0.08 per word to get your document back in three hours, and $0.11 per word to complete a human review in 30 minutes.

Swift, Helpful Customer Support

With Grammarly, a 24/7 helpdesk service is available for registered users. All users can access the knowledge base and ticketing system.

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We sent in a customer support ticket to test Grammarly’s support quality and speed.

Sending in a request was simple: all the site needs is your email address and a brief description of your problem.

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Zach with Grammarly Support responded with a comprehensive answer in about 12 hours, which is about average, according to recent data.

Now that we’ve covered what’s great about Grammarly, let’s talk about the cons of the service.

Grammarly Cons

Accuracy Could Be Better

While Grammarly is accurate for the most part, it did miss a pretty important word choice mistake when we tested it out: the dreaded incorrect use of you’re.

In this case, the sentence should have read “your” instead of “you’re.”

No Current Multilingual Options

If you’re looking for a grammar tool that can help you check writing in more than one language, Grammarly isn’t for you.

Although it’s stacked full of useful features, Grammarly currently only supports English.

Next, we’ll take a look at the cost of premium Grammarly plans.

Grammarly Cost

While some Grammarly features are free, you’ll have to pay for access to all of the bells and whistles, like the plagiarism checker.

Monthly, Quarterly and Annual plans are available. Costs are as follows:

Monthly: $29.95 per month

Quarterly: $19.98 per month billed as one payment of $59.95 for three-month access

Annual: $11.66 per month billed as one payment of $139.95 for 12-month access

Available payment methods include:

  • Credit card
  • PayPal
  • Debit card (excluding for Visa Electron debit cards, Mastercard Maestro, and Interac)

Checks, money orders, and phone payments aren’t currently accepted.

Do I Recommend Grammarly?

Overall, yes. Grammarly is packed full of more features than most grammar tools out there.

Whether you need a grammar checker for academic, professional, or personal reasons, this one should have you covered.

If you’re a blog writer or you own a website, this tool is a great, comprehensive option that can help you take your content to the next level.

And the paid version is worth it, considering all of the sophisticated, advanced features that you’ll have access to.

That being said, if you need a grammar tool with multilingual capabilities, this one misses the mark entirely.

Read the full review →

Or click here to purchase now →

Next on our list is GrammarCheck.

2. GrammarCheck

GrammarCheck is a spelling and grammar checking website that seems to be powered by Grammarly software.

The site appears to be an external, alternate webpage from Grammarly where visitors can paste text into the text box to receive an analyzation completed via the Grammarly free version.

Users can choose to run a more comprehensive “Deep Check” instead, which redirects them to buy a paid Grammarly plan.

First off, let’s talk about what’s good about Grammar Check.

GrammarCheck Pros

Easy to Use

GrammarCheck is fairly simple to use. Just paste or type your text and select the kind of check you want to run to get started.


Like most of the other tools on this list, GrammarCheck highlights grammatical errors and offers suggestions to correct each error.


Since GrammarCheck runs off of Grammarly software, it offers sophisticated features such as a passive voice detector.

High Limitations and Transparent Grammar Rules

Since this tool is powered by Grammarly software, it has the same high word limits as the service.

Therefore, GrammarCheck also follows the same grammar rules and style guides as Grammarly.

Now it’s time to look at the cons of GrammarCheck.

GrammarCheck Cons

Accuracy is Off

GrammarCheck, like Grammarly, isn’t always consistent and accurate about finding grammatical errors.

For example, this tool (like some others) missed the wrong usage of the word “you’re.”

GrammarCheck Can’t Measure Conciseness or Plagiarism

GrammarCheck users can access conciseness measurements through the site when running a Deep Check that is completed through Grammarly Premium.

That being said, GrammarCheck itself can’t measure conciseness.

The same applies to plagiarism. GrammarCheck doesn’t offer a plagiarism checker, although Grammarly does.

No Reporting Option or Human Review Available

With GrammarCheck, there’s no current option to run grammar reports and export them, unless a user chose to run a Deep Check with Grammarly through the site.

The same can be said for human reviews. GrammarCheck itself doesn’t offer them, but Grammarly does.

Lacking Diverse Device Compatibility

GrammarCheck doesn’t offer any kind of extension, app, or plugin. The tool can only be accessed via mobile or web browser.

Not Multilingual

GrammarCheck does not seem to be multilingual, which may be another by-product of the tool piggybacking on Grammarly’s service.

No Customer Service Reply

No live chat, ticketing, or knowledge base options are available through GrammarCheck.

The site used to offer a contact form, which is currently closed.

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The only point of contact listed appears to be a personal email of the website owner. We emailed her to ask a question about the tool and never received a response.

Now that you know the pros and cons of GrammarCheck, you might be wondering how much the tool will set you back.

GrammarCheck Cost

While a free check is available through GrammarCheck, The Deep Check button redirects users to Grammarly to sign up for a paid plan.

Here’s where users are taken when the “Deep Check” button is selected:

Do I Recommend GrammarCheck?

No. This “tool” seems to be less of a tool and more of a personal site that someone has embedded Grammarly software on.

Users are redirected to Grammarly from this site if they want to run more comprehensive checks. It’s more convenient to use Grammarly instead and skip the middleman, here.

Next up is Grammarix.

3. Grammarix

Grammarix is a grammar tool that’s completely free.

The Grammarix site reads, “Once the tool was built, we just knew we had to roll it out to the mass market, which meant that we wouldn’t be attaching a premium price tag to the software.”

Is this free tool really all that it’s cracked up to be? Let’s find out.

Grammarix Pros

Grammarix has a simple to use, clean user interface that offers up correction suggestions to users.

While the interface isn’t anything super extraordinary, it’s simple and gets straight to the point.

But that’s where the pros for Grammarix seem to stop.

Grammarix Cons

Accuracy and Sophistication Fall Flat

Grammarix fails to find some grammatical issues, such as double punctuation.

And other grammar checkers out there can identify uses of passive voice with sophisticated features, but Grammarix doesn’t seem to be one of them.

No Concision Feature

As you might expect from a free tool, there aren’t currently any Grammarix features that help users write more concisely/with more clarity.

Flaky Plagiarism Detection

On the Grammarix site, the company says that a plagiarism detector is available.

Their homepage reads: “[The tool] will even flag up any instances of plagiarism, which is a great bonus if you are a student or if you write for a living.”

But when we entered in some plagiarized copy from this NPR excerpt of The Great Gatsby, the grammar checker didn’t identify the copied content as plagiarism.

Low Limitations

On Grammarix, you can only enter in and analyze 2,000 symbols at a time.

Try to check more, and the tool will give you the following message:

The Grammarix FAQ page reads, “If your writing is longer than that, you can of course choose to enter it in multiple checks.”

So if you need to review a large body of text, this checker might not be your best bet.

No Listed Grammar Rule Source or Reporting Option

With Grammarix, there’s no way to know how the site is checking information.

It’s unclear if they’re using an original service or an external one, and the site doesn’t mention which style guide is used to review content.

There’s also no reporting option to export a PDF or word document of your results, so if this is important to you, a different tool could be a better choice.

Device Compatibility

While some grammar checkers offer tons of different versions, extensions, and compatibilities. Grammarix is only available via a mobile or web browser.

No Human Review or Multilingual Options

If you need to access a human review of your work, Grammarix won’t be able to help you out.

And when we tried to check languages other than English, the tool wasn’t able to accurately suggest corrections.

In fact, the software just tried to change other languages to similarly spelled English words.

There’s a Contact Form, But We Never Received a Response

The only customer service option offered by Grammarix is a contact form located on the website.

It’s fairly straightforward. Just enter in your name, email, subject, and message.

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Once your message has been sent, you should be redirected to a page confirming that customer service has received it.

We received a confirmation email within seconds of submitting our message suggesting to check out the Grammarix FAQ page for more information.

While the email stated that Grammarix would get back to us as soon as possible, we still haven’t heard back more than five days later.

If you’re looking for a tool that can answer your questions within a few hours, this one is a hit and a miss.

Grammarix Cost

The good news is that Grammarix is free, so you’ve got nothing to lose if you want to try it out.

Do I Recommend Grammarix?

No. This tool has far too many cons to be worth your while.

Sophisticated perks like plagiarism detection are offered, but it doesn’t seem to be very reliable at catching copied text.

While it is a free grammar checking tool, there are comparable free checkers on the market that offer more advanced and accurate features than Grammarix.

Is Scribens, another free grammar checker, more promising than Grammarix?

4. Scribens

Scribens is a no-cost grammar checker that claims to correct more than 250 types of grammar, spelling, and stylistic errors.

They also claim to correct 10X more mistakes than Microsoft Word.

Their site reads, “Scribens employs a sophisticated syntaxical recognition algorithm that detects even the most subtle errors in a text.”

But how good is that algorithm? Especially if it’s free?

Scribens Pros

Ease of Use

Scribens has a simple and comprehensive user interface that offers suggestions that can help writers avoid repeating the same mistakes time and time again.

Sophisticated Checker

Scribens is a very sophisticated checker.

It even detected our incorrect usage of brackets and suggested a correction.

On top of that, the tool also recommended spelling out numbers between ten and two, which is recommended by most style guides.

Helps Users Write With Clarity

While the checker doesn’t blatantly state it, it can help users write with more clarity by suggesting more refined replacements for common words.

Doesn’t Seem to Have Limitations

Most tools have daily word or page limits. Especially free ones.

But Scribens is an exception. It doesn’t appear to have a limit on the number of characters or words that can be analyzed.

Different Style Guides Available

Some checkers don’t disclose how they check information. But Scribens lets users decide whether they want to check their content using British English or American English vocabulary.

Extremely Diverse Device Compatibility

When it comes to device compatibility, Scribens blows most grammar checkers out of the water.

It offers extensions for Google Chrome, Mozilla Firefox, and Safari. On top of that, the tool is also compatible with:

  • Word 2016 for Windows
  • Excel 2016 for Windows
  • Word 2016 for Mac
  • Excel 2016 for Mac
  • Word Online
  • Excel Online
  • Microsoft Office Suite
  • LibreOffice
  • OpenOffice
  • Google Docs
  • Google Sheets
  • Mozilla Thunderbird

There’s even an option to add Scribens to your website with CKEditor.

But not everything about Scribens is perfect. Here’s what we would change about Scribens if we could.

Scribens Cons

Occasionally Inaccurate

If a grammar tool lacks accuracy, you can never be sure that you’re not missing important errors in your writing.

Unfortunately, Scribens missed this incorrect use of the word “their” when we tested it out.

No Plagiarism Option or Reporting Feature

There is currently no plagiarism checker feature with Scriber. The same can be said about any sort of reporting tool.

So if you need to export your grammar check to refer back to it later or print it out, you won’t be able to do that with this tool.

No Human Review or Multilingual Options

Scriber doesn’t currently offer human reviews, which can be expected from a free tool.

The only language currently supported by this checker is English.

Customer Service Form Doesn’t Work

On the Scribens site, users can fill out a contact page to get in touch with the Scribens team.

But when we filled it out to test the quality and speed of their customer service, the “Send” button didn’t seem to work.

After reloading the page and trying to send the form several times from different browsers and devices, we eventually gave up.

Scribens Cost

Luckily, there are no current costs associated with using Scribens.

Do I Recommend Scribens?

Yes. If you need an everyday grammar checker without all of the bells and whistles, this is a great option.

There doesn’t seem to be any limitations, which is great for a free tool. And the sophisticated features and suggestions are surprising for an unpaid checker.

And since it’s free, you won’t have to risk anything to try it out.

Citation Machine offers a grammar checker that’s designed for educational use, which is great if you’re a student.

5. Citation Machine

Citation Machine, a Chegg service, is a tool best known for being a works cited generator.

A works cited generator finds information from across the web to automatically create a full bibliography that helps you cite all of the sources used in an academic paper.

In addition to offering citation services, Citation Machine also offers a grammar and plagiarism checker.

Here are the pros and cons of the tool.

Citation Machine Pros

Some of the Best Usability We’ve Seen

This grammar checker is one of the easiest to use on this list. Citation Machine offers a complete step by step initial walkthrough of how to use the checker for new users.

By the end of the walkthrough, you’ll know how to use every feature that comes with the service.

An Accurate Grammar Checker

Citation Machine consistently finds the same issues with text when it comes to things like word usage, commas, punctuation, and misspellings.

Sophisticated, Easily Integrates With Other Citation Machine Features

Citation Machine can identify issues with sophisticated errors, like comma usage or certain parts of speech.

On top of that, the grammar checker easily integrates with other features, like the actual citation creator.

This makes it possible for users to check, edit, revise, and insert a bibliography into their text all from the same window.

Measures Conciseness

Citation Machine can measure conciseness and help writers with clarity by suggesting the removal of redundant, unnecessary words.

Plagiarism Checker is Available With Paid Version

Citation Machine offers a plagiarism checker. The only catch? It doesn’t come with the free version.

In order to use it, you’ll have to sign up for the monthly, premium plan. However, there is a three day free trial included.

APA, MLA, and Chicago Style Guides

Citation Machine is very transparent about the fact that they use APA, MLA, and Chicago Style Guides.

Their site reads: “The APA and MLA are not associated with Citation Machine, but our citation services follow their styles.”

Reporting Options Are Available

This checker allows users to download grammar reports.

However, you’ll have to create an account in order to export your grammar check report.

This is a fairly painless process, unless you aren’t a student or educator. Why? The site asks you to enter a university to register.

Once you’ve registered, you can export your report in the form of a Microsoft Word document.

Comprehensive Knowledge Base

While Citation Machine doesn’t offer any fancy customer service features like live chat or a ticketing system, they do have a pretty comprehensive knowledge base available.

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There’s even a section listing answers to their most frequently asked questions.

Citation Machine has a lot to offer. But it also falls short in a few ways.

Citation Machine Cons

Low Limitations With Free Version

Users accessing the free version of this grammar checker will only be able to access 20 suggestions. The paid version, however, is unlimited.

Device Compatibility Could Be Better

For such a sophisticated tool, we expected that Citation Machine would at least offer an app or some kind of browser extension.

But it looks like it’s only accessible via mobile and web browsers for now.

No Human Reviews Offered, English Only

This checker doesn’t seem to offer human reviews at the moment, and it seems to only be able to check English text.

This is bad news for those looking for a multilingual grammar checker.

While some Citation Machine features are free, a paid option is available for users who want to access advanced features.

Citation Machine Cost

A three day free trial is available with this grammar checker. After that, it is $9.95 per month. It appears that Citation Machine only accepts credit or debit card payments at this time.

Do I Recommend Citation Machine?

Yes, but maybe only if you’re a student or an educator.

This grammar checker is designed with students and teachers in mind. This tool would be best suited for those looking to check an academic paper to ensure a solid grade.

Citation Machine could also be beneficial for educators to paste in students’ work and let the grammar checker do some of the grading for them.

Number six on our list is LanguageTool.

6. LanguageTool

LanguageTool is an Open Source application that was “developed by a group of language enthusiasts and software developers,” according to the LanguageTool site.

Since this tool is powered by Open Source software, it’s one of the most unique grammar checkers on our list.

Here’s what makes it a great candidate.

LanguageTool Pros

Clean, Easy to Navigate Interface

LanguageTool has a clean interface that just about anyone can use.


This grammar checker is significantly accurate, and it identifies a ton of the same issues time and time again.

For example, it almost always recognizes words that are usually spelled with a hyphen, such as “hard-earned.”

Premium Plan Helps Ensure Concision

While there are some features available with the free version of LanguageTool that can help users write with more clarity, the paid plan can almost guarantee it.

It can even help users detect uses of the wrong gender within a salutation, which is perfect for double checking quick emails you might need to send in a pinch.

Limitations Aren’t Incredibly Low

The free version of LanguageTool includes a limit of 20,000 characters per individual check, while the enterprise has a limit of 40,000 characters per individual check.

Insane Device Compatibility

LanguageTool can be accessed via web or mobile browser and is compatible with:

  • LibreOffice
  • Microsoft Word
  • Firefox and Chrome
  • Google Docs

On top of that, the LanguageTool community has developed countless plugins and add-ons for tons of programs, like CheckMate or Android.

That being said, most of this software isn’t necessarily officially supported by the LanguageTool team, so users should try them at their own risk.

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Tons of Different Languages

The good news about LanguageTool is that you can use it to check grammar in tons of different languages.

This grammar checker currently supports:

  • Asturian
  • Belarusian
  • Breton
  • Catalan
  • Dutch
  • English
  • Esperanto
  • French
  • Galician
  • German
  • Greek
  • Italian
  • Japanese
  • Khmer
  • Persian
  • Polish
  • Portuguese
  • Romanian
  • Russian
  • Simplified Chinese
  • Slovak
  • Slovenian
  • Spanish
  • Swedish
  • Tagalog
  • Tamil
  • Ukrainian

Users can also select their desired language by country or with the auto-detect feature.

Accessible Forum Available

LanguageTool’s only real form of customer service is their forum.

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The forum is packed full of helpful content, and you can even search for specific keywords to find exactly what you’re looking for.

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Every rose has its thorn. Here are the downsides to LanguageTool.

LanguageTool Cons

Not the Most Sophisticated Checker

While this tool has a lot going for it, it definitely isn’t the most sophisticated grammar checker out there.

For example, it didn’t catch any uses of passive voice.

No Plagiarism or Reporting Options

At this time, LanguageTool doesn’t offer any kind of plagiarism tools. They also don’t seem to give users a way to export and download copies of their grammar reports.

No Human Review or Style Guide Listed

This checker doesn’t allow you to order human reviews of your work, so if you need an advanced analysis of your writing, think twice about this tool.

LanguageTool also doesn’t list the style guide used within their software to analyze grammar and suggest corrections.

This service has a free option, but you can also pay to upgrade to a premium plan for access to higher limits or more concise suggestions.

LanguageTool Cost

With LanguageTool premium, users can choose to pay monthly, every three months, or every year.

Pricing is as follows:

  • Monthly subscription: $19 per month
  • Three month subscription: $39 every three months
  • Yearly subscription: $59 every year

Do I Recommend LanguageTool?

Yes. Especially if you need a multilanguage grammar checker, since this checker is compatible with so many different languages.

While there aren’t any plagiarism checking options available, LanguageTool is still a strong competitor in the grammar checking world.

It’s accurate, uses OpenSource software, and has tons of potential for many different uses.

The last tool we’ll be analyzing is Reverso.

7. Reverso

Reverso is best known for being an online translation aid featuring dictionary and pronunciation aids. The company also offers language services such as spelling and grammar checking tools.

The service is free and is “mostly financed by advertising,” according to their “About Me” page.

Here’s what we like about Reverso.

Reverso Pros

Straightforward Interface

Reverso’s interface gets straight to the point. Just enter in your text and press “check” to begin analyzing your writing.

Any detected errors will become highlighted. Once you click on a word or group of words, you’ll be able to view and select suggestions for replacement.

It’s Accurate

Reverso is a consistent grammar checker that identifies misspellings, punctuation errors, and more with ease.

A Sophisticated Option

If you need to check comma use, hyphens, parts of speech, or words that are spelled correctly but not used correctly, Reverso has got your back.

Unlike some other grammar tools on this list, this checker caught incorrect uses of “your” right off the bat.

Grammar Rules Backed by Translation Service

Grammar rules used to check text seem to be backed by Reverso-Softissimo, a language software powerhouse that designs, publishes, and integrates their work across the market.

Reverso says: “[The grammar checker] makes use of the best technologies developed by Ginger Software with an interface, settings and complementary processings specifically devised by Reverso-Softissimo for the Reverso website and the Reverso Intranet products.”

Browser Extension Available

This grammar checker can be used via mobile browser, web browser, or Google Chrome browser extension.

To access the browser extension, click the “Add Reverso to Chrome” button under the “Join Reverso” dropdown menu.

You’ll be taken to the Chrome webstore, where you can simply click “Add to Chrome” to get started.

With the extension, you can view your translation search history and save your favorite translations to reference later.

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Multilingual Service

Reverso can check grammar in a few different languages, and even auto detect your language in some cases.


Supported languages currently include:

  • German
  • Russian
  • Arabic
  • Dutch
  • Hebrew
  • Polish
  • Romanian
  • Spanish
  • French
  • Italian
  • Portuguese
  • English

There are a few cons to this checker, though.

Reverso Cons

Misses the Mark on Concision and Plagiarism Options

Reverso missed several cases of passive voice, so it’s not exactly the most concise checker on the market.

This tool also doesn’t seem to offer any type of plagiarism checker.

Strict Limitations

Reverso can only check 600 characters at a time, making it a pretty limited service.

If you need to check a large chunk of text at one time, skip out on this tool.

No Reporting/Human Review

Users of this checker have no way to export their reports to refer to them later, and human reviews aren’t available.

This isn’t surprising, given that this tool is completely free.

Customer Service Needs Improvement

The only form of customer service on the Reverso site is a contact form.

Users have to choose the type of request and enter their name, email, country, company, position, phone number, and feedback or request, so it’s a fairly extensive process.

We tested out the form to see how the quality and speed of Reverso’s customer service was, but we never heard back from the team.

Reverso Cost

Reverso is completely free, but there are a few small perks of signing up for a free account with the service, such as the ability to keep track of your last searches.

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If you plan to use this tool on a regular basis, it’s worth it to quickly create an account to keep track of your activity.

Do I Recommend Reverso?

Yes. But only for small amounts of text, like emails.

Due to the limitations of this service, it wouldn’t be worth it to try and check an entire article or academic paper with this tool.

If you need a sophisticated, easy to use grammar checker that is multilingual to check a few small bits of writing here and there, this one is worth a try.


You can find bad grammar without looking very far. And it can hurt your reputation, your career, or your grades.

Luckily, grammar checking tools are here to help, whether you’re a blogger, a professional who sends a ton of emails, a student, or are writing in a non-native language.

Most grammar checkers are either free or cheap, but there are tons out there to choose from. So how can you decide which one(s) are right for you?

We analyzed seven of them to help you pick.

For each tool, we evaluated:

  • Usability
  • Accuracy
  • Sophistication
  • Concision
  • Ability to check for plagiarism
  • Limitations
  • Grammar rule source
  • Reporting options (ability to export grammar checks and download them)
  • Device compatibility
  • Human reviews
  • Whether the tool is multilingual
  • Quality/speed of customer service
  • Plans and pricing

If you need an honest to goodness English grammar checker that can elevate your writing to the highest degree, no matter the type of writing, go for Grammarly.

Opt for the paid version if you want the most sophisticated and advanced features.

Avoid GrammarCheck and Grammarix. GrammarCheck seems to be a site built from embedded Grammarly software. Skip the middleman and use Grammarly (or another tool) instead.

Grammarix has too many cons to make it a real competitor in the grammar checking space.

If you just need a basic, plain Jane checker for everyday use, opt for Scribens. It’s free, so you aren’t risking anything to try it out.

Citation Machine is best for students and educators. If you need to analyze your latest paper or get some assistance grading students’ writing, try this tool.

If you decide you want to use it long term after trying it out, commit to the premium upgrade.

If you’re looking for a multilanguage grammar checker, LanguageTool or Reverso are wonderful services.

LanguageTool is compatible with more languages than Reverso and has fairly high limitations. Reverso is great for checking small bits of text, like emails.

Now that you know which of these grammar checkers is the best one for you based on your needs, what are you waiting for? Try it out and boost your writing now.