Many people don’t know about what is an online grammar checker. An online grammar checker is a utility that can check spelling mistakes and also grammatical errors of any given content present on the website, blog or anywhere else. A grammar checker tool ensures that the users can write error-free content for their website which makes it user-friendly. Most of the editors provide the feature of checking grammar errors but they are error-prone too. Under this situation, online grammar checker tools come into existence to overcome all the drawbacks of online editors and enhance writing skills using few clicks without wasting much time.
To write your essay, you have to pay close attention to grammar. Many students make grammar mistakes, which makes the essay look unprofessional. Fortunately, there are online grammar checkers that can help improve your writing skills. Here are some of the best free tools for grammar checker.
After The Deadline
After The Deadline is available as a Google Chrome extension. It comes with a built-in spell checker tool with optional grammar and readability check.
Once you have installed the addon in your browser, you will need to click on it and select options. This will open the addon’s settings page where you can check the options that you want the addon to look out for.

You can run the tool while writing your blog posts by clicking on the spellcheck icon at the bottom right corner of the editor.
Grammarly

Grammarly is one of the best free grammar checker tools that you can use for grammar, spelling, punctuation errors, and more.
It lets you check 100,000 characters at a time. You just have to copy and paste the content into the Grammarly editor, and it will check the content for factors like correctness, clarity, engagement, and delivery. With a text editor-like interface, you can easily do bold, italic, heading tags, and other stuff.
Should you want to use it directly in your WordPress site or your emails, you can do that using a free Chrome or Firefox extension, and it will highlight the errors by underlining them in red.
Features (free):
- AI-based text checker
- Browser, Google Docs, and MS Word integration
- 256-bit AES & SSL/TLS encryption
- Personal dictionary
- 1 user per account
- Available for mobile interface
Features (paid):
- Advanced style suggestions
- Better sentence structure analysis
- Tone and formality level checker
- Wordiness and ineffective vocabulary filter
- Built-in plagiarism checker
- Style consistency checker
- Human proofreading (additional cost)
- Formality level
- Inclusive language
- AML SSO (for accounts with 50+ users)
- Word choice
Pricing:
This grammar checker is available for free, but to unlock advanced features, you’ll have to spend $11.66 per month.
Jetpack

Jetpack is one of the most popular WordPress plugins known for site security, performance optimization, and other powerful tools (one of which is the Jetpack proofreading module).
All you need to do is go to Jetpack > Settings > Writing and enable the spelling, style, and grammar check features, and it will automatically mark your errors on the WordPress editor in the following colors –
- Red – misused words and spelling errors
- Green – grammatical mistakes
- Blue – style suggestions
Features (free):
- Color coding for error recognition
- Available in English, French, German, Portuguese, and Spanish
- Dedicated WordPress plugin
- Regular updates by the Automattic team
- No hidden fees
Pricing:
Jetpack proofreading is available for free. You can install the plugin from the WordPress directory.
ProWritingAid
ProWritingAid is an online grammar checker and style editor for writers and content creators in general. This editing software not only helps you to quickly edit grammar and spelling errors, fix punctuation and optimize word choice but it also provides detailed reports to help you improve your writing skills.
I use this tool on a daily basis as integration to Google Docs, Gmail, and WordPress to double-check for grammar mistakes. I also like the style and terminology suggestions this software provides to perfect my written content.
In addition, the platform offers in-app explanations, suggestions, quizzes, videos, and articles to help you build your writing skills in real-time. ProWritingAid integrates with Google Docs, Microsoft Word, MS Outlook, as well as most web browsers.
A Desktop App is available for Windows and Mac. Users can also upload their documents to the platform’s web-based editor.
Key features
- Spelling and grammar check software.
- Mac and Windows support
- Checks for consistencies in spelling, hyphenation, and capitalization.
- Third-party integration and browser extensions available.
- More writing reports than any other tool.
- Suggestions that improve words power and clarity.
- Checks for plagiarism.
Pricing and plans
ProWritingAid is available in three packages – Free, Premium, and Premium Plus.
Free plan
- Free of charge.
The free version gives you access to a web-based grammar checker of up to 500 words, as well as a basic browser extension that checks grammar and spelling online.
Premium plan
- $20.00 per month.
- $79.00 per year.
- $399.00 lifetime.
One-time payment.
The Premium version package allows you to check documents of any size via a desktop app or Google Doc, Microsoft Word, and Scrivener integrations with in-depth reports.
Premium Plus plan
- $24.00 per month.
- $89.00 per year.
- $499.00 lifetime.
One-time payment.
For a few extra dollars, a “Premium Plus” version includes all of the same features as the Premium version, as well as 60 plagiarism checks per year.
Ginger
Pricing: $13.99 per month
An Israeli startup created Ginger in 2007, making it one of the more established spelling and grammar checkers on the market. Like Grammarly, Ginger offers free grammar and spell-check as well as premium online proofreading software.
Key Features
The quickest way to get started is by installing a Chrome extension or any other browser extension. It is also available for advanced tools like Slack. It provides apps for Windows and iOS… but none for Google Docs yet.
You can use a keyboard for Android. Or, you can paste extracts of your text into their web app. You can also use it as a punctuation checker to correct your text in Gmail.
Ginger reveals the character count, word count, and the number of sentences for your text. The tool also helps you find and fix synonyms for commonly overused words like make. Ginger identifies grammatical errors and spelling errors by highlighting them in blue.
Like Grammarly, Ginger Premium offers more context for grammatical mistakes and identifies more issues than the free grammar checker version. For instance, it has advanced features to check for grammar rules like subject-verb agreement.
Interestingly, Ginger can translate extracts of your writing into 60 other languages, including Spanish, German, and even Yiddish. Sure, Google Translate also does this, but being able to check a document for grammar issues and translate from within one app is useful.
A Ginger Premium subscription also includes a virtual writing tutor who provides video grammar lessons and tests. This English grammar checker feature should appeal to those learning or writing in the language for the first time
This makes Ginger online grammar corrector ideal for non-English native writers—you could write in Yiddish, translate to English, and then grammar check your writing all within Ginger.
You can also add words that you don’t want to identify as mistakes to a personal dictionary within the Ginger grammar checking tool. I could see this appealing to fiction writers with unusual character names for their stories.
How Much Does Ginger Software Cost?
- A Ginger monthly subscription costs $13.99 per month.
- A Ginger annual subscription costs $7.49 per month if you pay upfront.
- A Ginger two-year subscription costs $6.99 per month if you pay upfront.
At the time of writing this best grammar checker review, Ginger was offering a discount of 30% on its premium plans. You can also avail of a 7-day, 100% money-back guarantee.
Ginger Review
For this Ginger review, I used the Chrome extension of this grammar checker software. Unlike Grammarly, Ginger doesn’t offer a Mac desktop app yet.
Like Grammarly, Ginger identified all of my grammar errors, spelling errors, and punctuation mistakes as well as the ones MS Word missed. However, Ginger was less insistent about fixing my inconsistent comma usage in the text.
Interestingly, Ginger Premium missed a spelling mistake in one of my headings. While you may wonder if it’s spell-checker function is top-notch, this particular mistake can be attributed to a formatting issue, which I explain in my video review.
I also had to hover over all grammar errors and punctuation errors with my mouse rather than reviewing them in a sidebar. This meant I spent more time correcting my grammar errors. It’s a small gripe, but I’m a little obsessed with workflows!
It also didn’t suggest sentence improvements like Grammarly. And I ran into several other usability issues. As a Mac user, I couldn’t get this app to fit into my workflow. To learn more, read our Ginger vs Grammarly comparison.Pros
- The free version of Ginger grammar checker software is relatively powerful
- Useful for non-English native speakers thanks to a virtual writing tutor and translation features
- Personal dictionary a nice addition
Cons
- Hovering over grammatical mistakes slows self-editing somewhat
- Some accuracy issues
- Mac app is barebones
- No support for Google Docs
Conclusion:
Grammar checker is now essential for quality writing. The best online grammar checker can be very handy when it comes to checking our business documents. However, there are grammar check software that are free and they do the job nicely.