9 Best Grammar Checkers for 2022

You may know Grammarly as an American multinational, but its roots are Ukrainian. Alex Shevchenko, Max Lytvyn, and Lider Dymtro, were this platform's original authors and launched it in 2009. 

Today, Grammarly Inc, a Fortune 500 company, owns the app. It has offices in Kyiv Ukraine, Vancouver, Canada, New York, and San Francisco. Teams at Cisco, Dell, Expensify, and Expedia use this tool.

Features 

Here’s what Grammarly has to offer:

Correctness

Grammarly correctors help keep your grammar, punctuation, and spelling in check. If there’s anything wrong in your text, this feature will highlight it, offer a suggestion, and you can choose to accept it by clicking on it.  

Delivery

It's normal to wonder whether you're connecting with your audience. This feature helps you know if your content is making a good impression on your readers. 

Clarity

It's paramount to ensure your audience can understand your content if you intend to pass a message. Grammarly has a metric to help you know if you're communicating clearly.  

Goals

You can set this tool to meet the expectations of whoever you're writing for, be it experts, knowledgeable or general audiences. You can either pick formal, neutral, or informal. 

If the app notices that your content is deviating from what is ideal for your reader, it alerts you. Other settings that you can set with this feature include domain (casual, academic, business), tone (neutral, joyful, confident), and intent (tell a story, describe, inform or convince). 

Overall score

This software calculates your work's overall score from 1 to 100%. This result puts into account things like readability, word count, and vocabulary.

Here's the best thing:

This software breaks down your performance into easy to understand one-liner explanations. No use getting a score without getting information on what needs improvement, right?

Plagiarism checker

The last thing you want is to plagiarize anyone's work because this might make your reader lose trust. Fortunately, the Grammarly checker detects plagiarism; hence you don't have to use multiple tools.  

Human proofreading

Sometimes you just need the human eye to give your content a once-over. This solution has the "Get Expert Help" feature to help polish your text.

Passive voice detector

Using an active voice can make your content sound more clear. Grammarly alerts you of every instance of passive sentences. 

Advanced features

Here are Grammarly's advanced features:

Grammarly keyboard

Statistics show that 81% of Americans and 78% of UK adults own smartphones. The gadgets provide an easier way for people to communicate, whether work-related (field/remote staff) or for leisure.

If you need to send out a tweet or reply to a quick email using your iOS or Android device, Grammarly's got you!

The language tool has the “Grammarly Keyboard” that can help you produce more unambiguous texts, or error-free emails or tweets. 

Engagement

Engagement is essential if you wish to appeal more to your readers. This software highlights how engaging your content is even on the Grammarly free check version. This feature will measure the metric by giving pointers like "a bit bland," "engaging," or "very engaging."

Security

Security is always a significant concern. Grammarly phone apps and browser extensions are safe.

Although it hasn't always been that way: 

In 2018, a Googler, Tavis Ormandy discovered that the grammar checker's browser extension posed a severe security flaw. Any webpage could hijack a user's session on the platform!

However, the company was quick to fix the bug. The mobile apps also encrypt your information, so no one else gets to eavesdrop on your private data. 

Apps and integrations

Grammarly has apps for desktop, iOS, and Android. You can also use the software on Windows, iOS, Android, Linux, Mac, and cloud.  

Unfortunately, you can't integrate the software with desktop apps apart from:

• Outlook
• Microsoft Word

You can also link applications with web extensions (е.g., .com) after installing the Grammarly browser extension. Here are some examples:

• Note Joy
• Slack
• Skype
• Zoho Desk
• LinkedIn

Pricing

Is there a free version of Grammarly? 

Yes, there is.

This English grammar checker has a plan that costs $0 and paid options. Here are their rates:

• Premium - $11.66/month for school and work
• Business - $12.50/month for teams of 3 to 149 and comes with priority support

This platform also has a human proofreading feature. Its pricing depends on the number of days that you need the complete work back.

The rates start from as low as $12.12 for three days to $ 95.06 for 30 minutes. 

*Grammarly @edu is also available for learning institutions with prices ranging from $500.00/year for five users to $1200 per year for 20 users. Contact the company for a quote if you have a larger group. 

Verdict 

Grammarly is the best grammar checker and proofreading software with plenty of features to help improve your writing. Some of them include correctness, goals, plagiarism checker, human proofreader, clarity, engagement, passive voice detector, and editor settings. 

You can rely on this tool to find plenty of errors that would typically go undetected. However, double-check some suggestions that it may offer - no solution is flawless.

In other words, always check to see if a suggestion makes sense. Your sentence might be correct, after all. 

WhiteSmoke has been in the market since 1981. The company's subsidiaries include Wise Data Media Ltd, KIBO Inc., and GMS Digital Ltd. 

Features

The following are WhiteSmoke's features.

Grammar checker

Some mistakes can be downright embarrassing. Others can cost your business, especially if you rely on web presence.

WhiteSmoke can give your text an English grammar check whether you're writing a blog post, pitch, email, name it. 

This solution not only detects errors but also offers suggestions on how to correct your content. 

Here are some of the things that the platform will be looking for in your texts:

• Run-on sentences
• Fragments
• Incomplete sentences
• Dangling modifiers

Style checker

Style goes beyond grammar and spell checking. This tool checks the presence of monotony or tense mixing and gives you correction options.

Spell checker

Are you wondering whether it's "colleague or "colligue?"  

Or perhaps you're quickly typing an email you were supposed to send by 10 am, but have been in a meeting until 9.45 am - a guaranteed recipe for typos. 

WhiteSmoke has a spell checker that corrects your errors as you type along. Also, it proofreads your work, as well as checking for punctuation mistakes. 

Punctuation checking

If you often get confused by punctuation, WhiteSmoke is perfect for you. This is one of the best correct grammar and punctuation checkers on this list. The solution will help you find instances of wrong usage or absence of punctuation while giving you suggestions/tips.   

Advanced features

Here are WhiteSmoke's advanced features.

Pre-made templates

Writer's block is real y'all.

You no longer have to spend five hours trying to figure out your first paragraph, thanks to WhiteSmoke. This tool comes with 100+ inbuilt templates to help you write whatever you need like a pro. 

Translation

This is one of the best grammar checkers because it allows you to translate your content to or from 55 languages. This feature uses Statistical Machine Translation (SMT) to calculate the highest probability of accuracy based on millions of texts that experts have translated. 

Tutorial

It helps when you know why exactly a software has corrected your mistake so that you don’t repeat in the future. WhiteSmoke offers video tutorials and explanations to guide you.

Apps and integrations

White Smoke has native as well as mobile (Android and iOS) apps. It's also available on the web so you can use it on any internet-connected device.

You can integrate this solution with:

• Word
• Outlook

Pricing

WhiteSmoke doesn't have a free trial period or version. However, it has a demo that you can watch to see how it works. Here are the software's plans and their rates:

• Web - $59.95/year or $124.95/3 years
• Premium - $79.95/year or $199.55/3 years
• Business - $137.95/year or $317.5 when billed annually

The most surprising thing that I found is that WhiteSmoke has the wording "Free online grammar checker" on its site. 

Well, there's no free version.

I reached out to support, and they confirmed the site doesn't have a free version. In my opinion, this type of messaging can be very misleading. 

Verdict

WhiteSmoke is a reliable grammar tool offering great features, such as translation, templates, tutorials, punctuation, style, and grammar checker. 

Of course, no grammar checking tool is 100% watertight. I tried to check a 500-word document on the desktop version, and I quickly discovered that I wouldn't get the results that I needed.

The solution has a 10,000 character limit on the desktop version. 

However, things were different on the web version. I was able to copy-paste the entire document and got the results that I needed, fast. 

Yael Karov and Avner Zangvil, a married couple, founded Ginger in 2007. This solution initially targeted dyslexic people, intending to help them understand and communicate better.

The Israel-U.S. Binational Industrial Research and Development Foundation board governors approved this organization for funding amounting to $8.1 million in 2011. 

Features

Here are Ginger's features:

Translation

With this software, you don't have to worry about not communicating with people who don't speak your language effectively. 

This software will help you translate your text to over 40 languages. 

Grammar checker

Ginger grammar checker has one of the most robust functionalities. It will help you detect anything - syntax errors, wrong punctuation, or spelling. 

This software is incredibly efficient because it uses patent-pending technology. It picks up on any grammar issues with high accuracy.  

Android keyboard

Send your texts, emails, or any other content type with Ginger's Android keyboard. This feature comes with 100+ emojis to remove boredom from your writing or to help your reader decipher your tone. 

Sentence rephraser

Write one sentence in different ways using this grammar tool. Therefore, you don't have to stress when rewriting your work.

Oh, by the way, this software also comes with a synonym feature just in case you want to change a few words and enrich your text. 

Essay checker 

The Ginger grammar check is a top feature to assist you ace that paper. 

Grammar-wise, at least.

It checks grammar, punctuation, and even proofreads your text online. The best thing about it is that it allows you to upload the entire paper for checking without any hitches.

Personal dictionary

Ginger grammar tool lets you add words that may not appear in standard dictionaries. Language checkers highlight uncommon words as mistakes, and this feature will help you avoid that. 

Tutorial

Listen to audio recording, that will teach you how to use the software. You no longer have to fumble in the dark, figuring out how to work with it.

Advanced features

The following are Ginger's advanced features:

Define

Everyone sometimes wonders whether they're using certain words in the right context. If you're unsure of what something means, you can type it on Ginger to get a precise definition. 

Personal trainer

Personal trainers aren't just for the gym.

Ginger comes with a personal trainer that helps shape up until you start writing the gurus. The feature works by identifying your areas of weakness, then gives you lessons to help you improve. 

Audio read back

This solution will read your text to speech. It’s especially beneficial to you if you're preparing for an interview or presentation and unsure how to pronounce some words. 

Apps and integrations

Ginger's has both smartphone and desktop apps. You can integrate it with:

• LinkedIn
• Gmail
• Slack
• Facebook
• Word
• Zapier

Pricing

Ginger doesn't have a trial period, but it offers a free alternative to Grammarly. Here are the rates for the premium accounts;

• Monthly - $20.97
• Annually - $89.88
• Two years - $159.84 

*This company offers a 7-day money-back guarantee on all its plans. 

However, there's a catch:

The offer is just for first-time clients.

Verdict

Ginger is a robust tool that can help you write on API, phone, Word, or through your browser with confidence. Some of its best features include but are not limited to, grammar checking, text-to-speech, personal dictionary, personal trainer, define, tutorial, and sentence rephraser. 

Ginger doesn't have a trial period. However, it has a 7-day money-back guarantee, which is more than enough for you to check out if it’s suitable for you. 

It is kind of sad that the solution doesn't have a plagiarism checker. The good news is that I have plenty of other options with this feature on my list. 

Chris Banks created ProWritingAid in 2012. Some of the companies that trust this tool are Amazon, Equifax, HomeServe, US Bureau of Labor Statistics, Scholly, and BDO. 

Features

Here are ProWriting Aid's features:

Plagiarism checking

This will help you check if your version of content appears anywhere else on the web.

Note that you have to enable this feature separately. The company doesn't include it in the pricing plans.

Robust reporting

ProWritingAid offers 20+ reports on passive voice usage, repetitions, spelling mistakes, vague words, and so much more. This is one of the best grammar checkers because the free version also has this feature. 

With the reports, you can see the errors you make the most and work on them.

Suggestions

This tool helps you improve not only your grammar but also your style. It can take your content's strength and clarity to the next level.

It has in-app suggestions to help you learn as you edit. It also comes with quizzes, explanations, and videos to enrich your knowledge. 

Thesaurus

ProWritingAid helps you find the right words through Thesaurus. With this feature, you can avoid repetitions, which can make your content monotonous.

Readability

Your content should be easy to read without your audience having to refer to a dictionary.

ProWritingAid gives you a score regarding document readability (from easy to hard). This feature also gives you an estimation of how long it takes to read your text.  

Error fixing

We all know how easy it is to miss some errors when editing, especially after writing long texts. 

With this grammar and punctuation checker, you'll never have to submit a document with embarrassing errors because you have burned out. This solution will help you fix all issues with ease. 

Advanced features

Here are ProWriting Aids advanced features:

Clichés

Most people don't like to read clichés, so no matter how much you're in love with them, avoid them. Sometimes they come so naturally that it's hard to notice them in your writing. This tool will highlight all instances of usage of the phrases for you. 

Customization

ProWritingAid lets you tailor it to meet your needs. For instance, you can set a dictionary or style to produce the content you want with ease. 

Apps and integrations

This solution is cloud-based and has no dedicated apps for smartphones. However, you can use it on Windows and Mac.

You can integrate ProWritingAid with:

• MS Outlook
• MS Word
• Browsers (Chrome, Edge, Safari Extension, Firefox extensions)
• Scrivener
• Google Docs
• Open Office 

Pricing

ProWritingAid has a 14-day trial period and money-back guarantee. It's also one of the best free grammar checkers on our lists since it comes with a feature-rich free version. 

Here are the tool's premium versions and their rates:

1. Monthly Subscription - $20.00/month
2. Yearly Subscription - $6.58/month, billed as $79.00 annually 
3. Lifetime Subscription - $299.00 one-off payment

*The software also has a premium plus plan with plagiarism that costs $24.00/month, $89.00/year, and $399.00/lifetime.

*If you need plagiarism alone here's what you'll need to part with;$10.00( 10 checks), $40.0 (100 reviews), $120.00 (500 assessments) and $200.00(1000 checks).

Verdict

ProWritingAid is a reliable tool. Some of its features include robust reporting, plagiarism, cliché, thesaurus, readability, error fixing, and many others.  

One of the most significant drawbacks of this solution is that it includes a plagiarism checker only on its Premium Plus plan.

Although you can use this version on Mac when on the cloud, you can’t use it with the Word integration.

You may know Earnest Hemmingway for his amazingly clear and cohesive short stories. The legend inspired two brothers, Adam and Ben Long, to create this solution. 

Features

Here are Hemingway's features:

Readability score

This feature will help remove all ambiguity from your text, making it easier to read. It will help you work on areas that lack clarity, making you more connected with your readers.

With this solution, you'll correct passive speech, complicated words, long sentences, dull wording, and much more. The readability score will help you produce outstanding work.

Editor

Hemingway is one of the best grammar checkers because it highlights every mistake in your piece. It uses color-coding the different issues, making it easy for you to spot them. 

One-click publishing

Uploading work to WordPress or Medium requires a lot of steps. With Hemmingway, you can easily publish your content in both places at the click of a button.  

Formatting area

You can make your text bold or italic, add bullets, numbers hyperlinks, all on Hemingway. Most tools don't have this feature, forcing you to switch between different applications to format. 

Offline functionality

You don't need an internet connection to use this software. 

So:

Whether you're working from the forest, or don't want the constant distraction from the Web, you're good to go with Hemingway.   

Apps and integrations

Hemingway has apps for Mac and Windows. You can also use it on any device with an internet connection. This solution offers integrations with:

• Any WordPress blog
• Medium 

Pricing

Hemmingway is a free grammar checker for its online version. 

Its desktop apps for both Windows and Mac cost $19.99. Note that this is a one-off payment. 

Verdict

Hemingway is uncomplicated, but can still deliver everything you need from such a tool. Some of its features include readability score, formatting tool, color-coded text corrections, suggestions. 

One of the things that I loved about this solution is its straightforward pricing. It has just one package, so nothing to be confused about.

That's not all:

Once you pay for the initial subscription, you no longer need to renew your packages. The company will ensure that they update your products with every upgrade.

As if that's not enough, you can use this tool offline. 

Awesome, isn't it?

As much as I loved using this software, I couldn't help but notice that it didn't have a plagiarism checker. It also has limited integrations, but I was willing to switch through different apps just to use it. 

Automatic, WordPress's parent company, owns After the Deadline. The technology that the software uses is under the General Public Licence on GNU.

The software’s name comes from a column in the New York Times. It’s popular for publishing content regarding grammar, style and spelling issues that the paper’s writers encounter at work.

Features

Here’s what After the Deadline has to offer:

Spell checking

On its website, After the Deadline promises to give you the correct spelling 9/10 times. The site  also claims to use artificial intelligence for the recommendations. 

I ran a text full of errors through the checker, but the report I got was that there were no mistakes. 

I used the contact form available on the software's website to reach out to support regarding the issue. I still haven't heard from the company.

Error explanation

After the Deadline claims not only to detect mistakes in your prose but also explains why it highlighted them. 

Well, I wasn't able to enjoy this feature since I didn't get any results after running my text through the tool. 

Grammar checking

This grammatical checker also claims to protect you from common writing errors. According to the website, there are grammar rules such as:

• Repeated words
• Confused words such as there/their/they're, your/you're and many more
• Errors in determiner agreement
• Mistakes in auxiliary verb agreement

Style checking

This tool also uses plain English as its guide to highlight style issues. You get to find out things like:

• Writing in more straightforward language to make your text clearer
• Locate passive voice usage
• How to avoid using redundant phrases
• Bias language and clichés

Apps and integrations

This solution has no dedicated apps. It's, however, cloud-based and is supposed to work well on Windows and Mac. 

Here are some software/applications that you can integrate it with:

• Firefox
• BuddyPress
• Chrome
• Open Office
• Windows Live Writer

Sounds good on paper. But it could be a hurdle for a non-techie.

I tried to integrate it with Firefox, and I got instructions upon instructions complete with code.

Pricing

This grammar checker is free, so you won't have to part with a single dollar to use it. 

Verdict

This software helps with checking basic grammar for users that want a free software. Its features include suggestions, mistake explanations, spelling, grammar, and misused word checking. 

It allows translation between different international languages. However, it can't differentiate between American, British, Australian, and other English variations.

I found After the Deadline not to be very reliable to check grammar issues. 

I copy-pasted an excerpt into the tool, and it returned the message, "No writing errors were found."Yet the mistakes were still there staring back at me. 

This software doesn't have a dictionary feature. However, it has an "Ignore Always" option. Once you press this feature, it won't highlight your words or sentence on consequent usage.

The good news is that we have plenty of options on our list to help you write in different English dialects. 

Nadaclair Language Technologies Inc owns SpellCheckPlus. 

Features

The following are SpellCheckPlus's features.

Content archiving

SpellCheckPlus is one of the best grammar checkers because it stores your text. That means that you can go back to something that you had written in the past if you want to make references or see how far you've come. 

Error detection

This tool does an excellent job highlighting grammatical and spelling errors. It also color-codes the mistakes so that you can easily spot them. 

Note that this feature only works when you click on "check text" and you have to make corrections manually.  

This is what I mean:

You can't click on the system corrections like with other grammar checking tools. For instance, if you have a spelling error such as "compter," it will give you the right word, “computer," but you'll have to type this out. 

This is one sure way to help you learn. It's easier to remember a word when you type it out the letters. 

Vocabulary enrichment 

The creators of SpellCheckPlus early picked the right name.

This software does more than checking spelling, the reason it’s maybe the best grammar checker that’s free. It has vocabulary enrichment to help learners enhance their English. 

Suggestions

The solution gives you the correct phrases or words. Here, you get suggestions for different contexts, allowing you to pick the right one. 

Grammar score

You can check how good or bad your grammar is, using this feature. It calculates the result based on the number of errors and the total number of words. 

Apps and integrations

This solution has both Android and iOS apps. It's also web-based so you can use it on Windows or Mac.

It allows Microsoft Word integrations. 

Pricing

SpellCheckPlus has a free grammar and punctuation checker and corrector version. It also has a 5-day trial period for you to try out its premium plan features. 

This software costs $14.99 for a one-year individual license. 

*For groups, you have to contact the company for a quote. 

Verdict

SpellCheckPlus is a useful tool for people that are not native English speakers. The solution stores history, highlights grammar, and spelling issues, gives suggestions, and enhances vocabulary. 

Note that the tool doesn't check for plagiarism or passive voice. 

Here's my experience when I attempted to sign up for the 5-day trial: 

I wasn't able to use my account instantly. After signing up, the system presented me with a blank page. No matter how many times I refreshed it, nothing happened.

Then I decided to read the terms and conditions, and this is where I read a couple of interesting statements, for instance:

"No guarantees are made that this site will find any or all spelling and grammar errors in a text."

I also learned that the company shuts down accounts with more than 50 requests in a day. That means that if you don't get a message for "successful signup," don't resend your signup details. 

I tried going back to the editor to use the software's web version. Unfortunately, I had to shut the program down and restart it to access it. 

The good news is that I was able to work with the web version. 

Scribens has been in the market since 2016. In 2019, five million people visited the site, according to information on its website. On average, 200,000 people use the software regularly. 

Features

Let's have a look at Scriben's features:

Grammar checker

Scribens is one of the free best grammar checkers. Count on it to correct anything from nouns, prepositions, typography, verbs, and pronouns.

Color Key

This software has a key that explains the meaning of different colors that you might encounter when you hit "Check." In other words, red is for grammar, green for verbs, light orange for suggestions, and blue for typography and punctuation. 

Importing files

You can import files directly from your gadget using Scribens. The process is straightforward and takes just a couple of seconds. 

Style

Scribens is one of the best grammar checkers whose free version gives suggestions based on your style. This feature also gives you vocabulary enhancement to spice up your content or fix mistakes. 

Synonyms 

If you're struggling with finding synonyms, Scribens can help. You won't have to worry about repeating the same words in your text, which can appear dull.

Advanced features

Here are Scriben's advanced features:

Dictionaries

Yet another reason why Scribens is one of the best grammar checkers. It lets you type in a word, check out its meaning, conjugation, and synonyms.

This feature is essential in helping you learn the meaning of words and how to use them. It will also give you examples of sentences and how to utilize them in simple, interrogative, and negative forms.

Grammar rules

If you're struggling with what rules to apply when using words in sentence structures, Scribens can help you. It has rules and examples on using verbs, homonyms, nouns, pronouns, adverbs, and many others. 

This feature also explains your mistakes. After checking your text, you can take advantage of the detailed information that the solution offers. 

Autocorrect

Scribens autocorrects your text after copy-pasting. You have to enable this feature to enjoy it. 

Statistics

This feature analyses things like:

• Word count
• Number of sentences and paragraphs
• Average words per paragraph
• Felsch readability index
• Gunning fog index
• Reading and speaking time
• Word pattern occurrence
• Dual word frequency
• Average syllables per word

This solution displays the information neatly on the left-hand side of your screen for analysis. 

Apps and integrations

Scribens has apps for Windows and Mac. You can integrate it applications such as:

• Outlook
• Word
• Open Office
• Browsers(Google Chrome and Firefox)
• Gmail
• Social media accounts (LinkedIn, Twitter and Facebook)

Pricing

This grammar, spelling, and punctuation checker freeware requires no payment. There's a premium version available that opens up more features. Here are the rates for the paid plans:

• 1 month - 5.90 €
• 3 Months - 14.90 €
• 1 year - 39.90 €

Verdict

Sribens uses an easy to understand the algorithm to check for grammar and spelling mistakes. Its features include dictionaries, grammar, spelling and punctuation checking, statistics, synonyms, color key, etc.  

This software's biggest weakness is that it doesn't have a plagiarism checker...which seems to be a trend at this point.

I also noticed that it didn't highlight instances of passive speech in my text. 

But I loved how easy it was to work with it. I also noticed it gives lots of integration options, which is a big plus. 

SoftSimmo Inc, a company that has been in operation since 1998, released Reverso Context in 2013. Reverso acquired Fleex in 2015 and released a mobile app in 2018. As of July 2019, the software had over 95 million active monthly users.    

Features

Here are Reverso's features.

Spelling and grammar checking

This spelling and grammar checker helps you correct spelling as well as grammar mistakes. Be sure to recheck your work, as some suggestions may not be accurate.

Dictionary

This solution uses the Collins Dictionary to give you definitions, synonyms, and conjugations of different words. It also defines the slang, neologisms, idiomatic phrases as well as specialized vocabulary. 

If you need different variations of dictionaries, i.e., English-French, English to French, and so on, this is a brilliant tool. 

With this feature, you can also create your own dictionary using a list of your favorite words. 

Advanced features

The following are Reverso's advanced features.

Flashcards and quizzes

This online grammar checker has flashcards and quizzes. These tools are essential in simplifying the learning of grammar and vocabulary. 

Translation

You can translate your text to 14 different languages using Reverso. It turns phrases into accurate and natural-sounding expressions, as a native speaker would. 

You can either speak out or write the words that need translation with this software. 

Oh, there's more:

The solution allows you to listen to native speakers pronounce the words. If you're preparing to present a speech to people from a different country, this is a sure way to impress them.  

Apps and integrations

Reverso has both Android and iOS apps. It's also cloud-based so you can use it on Mac and Windows. 

Unfortunately, this solution doesn't allow integrations.  

Pricing

Reverso offers online free grammar and translation checks. It also has premium versions, but you have to contact the vendor for a quote. 

Verdict

Reverso is a robust tool with features like spelling and grammar checking, dictionary, translation (both written and spoken), over 100 language pairs, flashcards, and quizzes. 

While using this tool, I found it to be not so accurate. 

Pointer: 

Always double check your work after using the spell checker to ensure that all word replacements make sense.