Top 13 Grammar Correction Tools You Can’t Miss in 2025

Written content, ranging from blog articles and social media posts to everyday emails and office documents, makes up the most common type of online material.

Research indicates that professionals who make about 2.5 times more grammatical errors tend to experience slower career advancement compared to those who write more accurately. Making mistakes in your writing can damage your credibility and trustworthiness, especially if you’re just starting to learn how to blog. Poor grammar and readability not only hinder your ability to connect with your audience but also negatively impact your search engine rankings.

To avoid these errors and strengthen your writing, investing in the best grammar checker is essential. A reliable grammar tool can assist you in catching spelling errors, refining your grammar, and crafting clearer, more engaging sentences. I have personally tested every tool listed here and am among the top users of Grammarly, having checked over 7 million words.

To help you choose the right tool, I’ve reviewed and ranked the 13 best online grammar checkers. These assessments consider features, user-friendliness, plagiarism detection, accuracy, readability enhancement, AI capabilities, and more. Let’s dive into the details.

Please note, I may earn affiliate commissions from some links if you purchase a paid plan, but with no additional cost to you. These are the tools I trust for improving your grammar and writing quality. You can review my full affiliate disclosure in my privacy policy.

What is the Best Grammar Checker? Here are my top recommendations for this year.

1. Grammarly

Best overall for professionals and students ($30/month).

Grammarly stands out as the most popular grammar checker on the market. It helps users enhance their writing by correcting grammar, punctuation, spelling, and making better word choices. Whether you’re a blogger, student, or working professional, Grammarly can elevate your writing style and tone. It integrates seamlessly with platforms like Google Docs, Gmail, Microsoft Word, and WordPress, and is available as a browser extension for Chrome, Firefox, and Edge. The tool proofreads your work quickly, offering instant suggestions and explanations to help you understand and learn from your mistakes. One of its key benefits is the built-in plagiarism checker, making it a comprehensive writing assistant.

Key Features:
– Free version available, ideal for casual users to correct basic mistakes.
– Tone detection helps analyze whether your message sounds friendly, confident, or serious.
– Real-time synonym suggestions on mobile devices improve vocabulary during writing.

Pros:
– User-friendly and straightforward interface.
– Multiple formats including web app, browser extensions, desktop, mobile keyboard, and MS Office add-on.
– Premium includes plagiarism detection.
– Detects contextual errors and improves sentence structures.
– Identifies the tone of your writing.
– Mobile app available on iOS, Android, and Google Play.

Pricing:
Start with the free version; premium plans cost around $30 per month.

2. Ginger

Ideal for multilingual writers ($20.97/month).

Ginger is a powerful tool that can identify and correct a wide range of writing errors, including spelling mistakes, grammatical issues, stylistic flaws, and punctuation errors. It also offers the ability to translate text from one language to another. However, the free version is limited to 350 characters.

Once you sign up, you’ll gain access to the free Chrome extension, which allows you to use the Ginger writing app. You can paste your content into it to quickly spot and fix errors. Ginger also provides a mobile app for editing emails, text messages, and social media posts on the go. While it integrates well with Microsoft Word, it does not support Google Docs.

Key features include support for 40 languages, enabling users to work in multiple languages, and an auditory feedback feature that helps learners improve pronunciation and understand meanings more effectively. The interface is customizable, allowing users to change toolbar settings like font style and background color based on their preferences.

Hemingway Editor is a versatile tool designed for writers aiming to refine their craft. Its goal is to help you create simpler, clearer sentences, making your writing more accessible. When you input your text, the tool highlights sentences that are difficult or very difficult to read, guiding you to simplify complex structures. More than just catching grammar mistakes, Hemingway helps improve your overall writing style to make your content more engaging and reader-friendly.

The desktop version can be purchased with a one-time fee of $19.99.

This free tool is ideal for developers seeking a no-cost grammar checker for their websites.

‘After the Deadline’ is an excellent free resource to keep your writing free of errors. It effectively identifies spelling mistakes, contextual issues, and sentence structure problems. Additionally, it offers style suggestions for enhancing your writing and allows developers to embed its open-source code into their websites for consistent quality. The tool also provides strong customer support, particularly when integrated with OpenOffice.org, to help users produce error-free content.

‘After the Deadline’ is completely free to use.

A cost-effective choice for those seeking a reliable grammar checker at an affordable monthly rate ($6.66).

WhiteSmoke ranks among the most budget-friendly grammar checking tools on the market. The paid version seamlessly integrates with Windows, MS Office, Mac, and Gmail, offering a range of features such as mistakes detectors and correction tools. It also provides video tutorials and explanations for common errors, helping users understand the corrections better.

WhiteSmoke offers two paid subscription plans. The more affordable plan costs $5 per month, while the premium option is priced at $6.66 monthly. There is also a free plan available, but it limits users to checking only 250 characters at a time, ideal for short messages or social media posts. The platform includes key features like pre-made templates for formatting documents, a style checker that offers suggestions tailored to your writing style, and educational tutorials to improve your grammar skills.

Its advantages include support for over 50 languages via an automated translation service, a plagiarism checker for paid plans, and a helpful blog section with writing tips. Additionally, WhiteSmoke is compatible with iOS and Android devices, allowing users to review correction suggestions on the go. It works across various browsers, such as Safari, Firefox, Opera, Chrome, and Outlook, making it versatile for different workflows. The premium plan costs $6.66 per month, providing a cost-effective way for users to enhance their writing quality.

LanguageTool is an open-source grammar checker especially useful for writers and editors working in multiple languages, including Spanish, German, French, Polish, and Russian. It features a customizable dictionary, enabling users to add frequently used terms for more accurate checks. The tool offers browser extensions for Chrome and Firefox, which can also be integrated with platforms like Google Docs, LibreOffice, and Microsoft Word. With keyboard shortcuts, users can quickly perform grammar checks without interrupting their workflow. Its advanced algorithm detects language-specific nuances, such as gender errors, enhancing the precision of its suggestions. Paid plans start at $19 per month, providing robust features suitable for professional editing.

Key features include a generous free version that checks up to 20,000 characters at a time, with an enterprise option allowing up to 40,000 characters per check. The tool also supports over 20 languages and lets users create a personal dictionary to filter out common but unconventional words. For organizations, an API allows for custom integration, improving content quality across platforms. The user interface is clean and straightforward, and a community forum offers support and guidance for troubleshooting. Paid subscriptions begin at $19 monthly, making it a flexible choice for users needing multi-language support and detailed grammar analysis.

ProWritingAid caters to writers seeking detailed feedback on their writing style and structure. It costs $70 annually and offers in-depth analysis to help improve clarity, readability, and style consistency. The platform provides extensive reports and suggestions to refine your writing, making it especially useful for authors, students, and content creators aiming for polished work. Its features include style analysis, repeated phrase detection, and contextual thesaurus. The tool integrates with many popular writing platforms and offers browser extensions, desktop apps, and integrations for Microsoft Word and Google Docs, making it a versatile option for different working environments.

This summary captures the core features and benefits of each grammar checker, providing an overview of various tools suited for different user needs, from budget-friendly options to professional-grade solutions.

ProWritingAid is a highly effective grammar checking tool designed to help users improve their writing skills. If you’re familiar with Grammarly, you’ll find that ProWritingAid offers similar features and capabilities. It can detect and fix issues related to grammar, spelling, punctuation, and style, aiding you in producing clearer, more polished content.

The platform provides 20 different detailed writing reports, accessible one by one. This allows users to go through each aspect of their writing carefully, rather than rushing through revisions. For example, you can initially focus on correcting spelling, grammar, or style issues, then later check for repetitive phrases or unnecessary words. Additionally, it offers a dedicated report to analyze sentence structures and identify clichés, helping you understand the finer points of good writing and craft more engaging sentences.

Key features of ProWritingAid include in-depth writing reports that assess your style and overall quality, a comprehensive readability analysis to make your content more audience-friendly, and affordability compared to other premium editing tools. It’s designed to make the editing process manageable and efficient, ensuring a professional finish. The tool’s lifetime subscription is available for a reasonable $240, making it accessible for regular users. It also seamlessly integrates with Scrivener, a popular word processing platform, and includes a WordExplorer feature that assists in finding the perfect words for your sentences. Repetitions and word substitutions are highlighted for clarity, helping you craft concise and precise writing.

In terms of pricing, ProWritingAid offers a monthly plan at $20, an annual plan at $70, and a one-time lifetime purchase for $299. These options provide flexibility depending on your usage and long-term needs.

9. Scribens.

For users seeking a free yet capable grammar checker, Scribens is an excellent choice. Its user-friendly interface allows writers to easily scan their content for grammatical errors, with real-time suggestions for corrections. Scribens includes a “Statistics” feature that provides insights into your writing, such as the number of sentences, paragraphs, total words, and average sentence length. Simply input your text, and the tool will instantly highlight mistakes and recommend appropriate fixes. It also marks awkward sentences that could benefit from rephrasing and identifies redundant or overly repetitive words, helping you eliminate filler content. Additionally, its Vocabulary Enhancement feature suggests more precise or sophisticated words to improve your writing style.

Key features of Scribens include a comprehensive dictionary to look up word meanings, synonyms, and definitions; extensive platform integration enabling you to check content across Gmail, Yahoo, Hotmail, Facebook, LinkedIn, Twitter, forums, and blogging sites; and detailed statistical data on your writing attributes. Best of all, it is available at no cost and supports multiple browsers like Safari, Chrome, and Firefox. You can also easily connect Scribens with MS Office applications for Mac and Windows, or add extensions for various browsers and office suites including Google Sheets and LibreOffice. For developers or website owners, Scribens offers an API that can be integrated into any website to maintain content quality.

Pricing-wise, Scribens is completely free, making it a valuable resource for writers who need a powerful grammar check without additional costs.

Ideal for Beginners Who Want an Easy-to-Use Interface ($25).

Grammar Slammer is designed for writers seeking a simple tool to ensure their writing is free of errors. It functions as a straightforward webpage that allows users to quickly look up grammar and editing rules to improve sentence construction.

Beyond basic stylistic, grammatical, and spelling advice, it also offers a wealth of linguistic data to significantly enhance your writing skills. Additionally, the software allows for easy correction of common writing mistakes. However, note that it is not web-based; you need to download or buy the software to use it.

The one-time payment options start at $25, with prices going up to $49.

Great for Both Beginners and Professionals Looking to Write Engaging Content ($14.99/year).

Spell Check Plus is an easy-to-use grammar checking tool that emphasizes education and improvement over quick editing. It helps users understand the reasons behind each mistake, making it particularly valuable for those wishing to learn correct English usage. The tool also offers a free version with essential grammar features, making it suitable for both novices and experienced writers.

It costs $14.99 per year for the full subscription.

Free resource for students and teachers to proofread and improve their writing.

Virtual Writing Tool is a free grammar checker designed mainly for online ESL teaching. It allows users to quickly review spelling, punctuation, and grammatical errors. The platform features a modified version of the Language Tool system, which makes proofreading engaging and easy through an intuitive mistake editing game.

Additionally, it helps educators automate proofreading and editing chores, reducing their workload and enabling quicker feedback for students. This real-time feedback mechanism makes assigning and reviewing assignments more efficient. Students, in turn, can practice and improve their ESL skills independently.

Key features include:
– Switching layout options, which display feedback either below or beside the text.
– The ability to create and publish hypertext narratives online using HTML, jQuery, or as iframes.
– A random error checker that enhances vocabulary, spelling, and grammar skills.

The tool is capable of correcting context-sensitive spelling and grammatical mistakes, identifying various vocabulary types, including conversational, academic, cliches, and field-specific terms. Users can access their feedback history, print reports, and even utilize speech recognition to improve pronunciation and enable hands-free editing. It also offers IELTS practice tests to help learners evaluate their writing scores.

The platform is entirely free to use.

For writers needing comprehensive editing support, AutoCrit is an effective tool primarily used by novelists and book authors. It costs $30 per month and helps streamline editing tasks by automating the process, saving significant time that can be redirected toward improving content quality. The software personalizes suggestions based on the writer’s unique style and offers guidance on reducing overuse of adverbs, filler words, clichés, and repetitive phrases. However, AutoCrit works exclusively through web browsers and doesn’t support offline editing.

Its features include:
– AI-powered, genre-specific editing suggestions that maintain context.
– A comparison function to review your manuscript against online content.
– A step-by-step editing process covering 20 different aspects, ensuring thorough revisions.

AutoCrit also provides analyses of pacing and momentum, helping writers craft more engaging stories. It highlights areas needing improvement instantly and allows users to track their progress using scores and fingerprints. The tool evaluates your manuscript across six criteria—dialogue, word choice, strong writing, repetition, fiction comparison, pacing, and momentum.

Pricing starts from $30 per month, with two subscription plans available.

Another useful option is PaperRater, which is designed for professionals needing a quick and reliable grammar check. It costs $11.29 per month.

PaperRater quickly provides editing recommendations after you submit your text. It uses artificial intelligence and data science to analyze sentence structures and perform real-time language assessments. The platform is user-friendly and doesn’t require registration or software downloads, allowing immediate use.

This affordable grammar checker is ideal for writers and students aiming for error-free writing under tight deadlines. It not only checks for grammatical mistakes but also assesses punctuation, word choice, spelling, passive voice, sentence length, and even detects plagiarism.

The monthly subscription costs $11.29.

Proper use of English is essential because it’s one of the most widely spoken languages worldwide. Over 1.5 billion people communicate in English, and more than 90% of the US population use it daily. Other popular languages include Spanish, French, and German. Despite this, writers often make numerous grammatical mistakes, such as missing commas, incorrect spacing, capitalization errors, and subject-verb disagreements. Microsoft has listed the top 10 common typing errors in English, highlighting how easy it is to overlook mistakes in our communications.

Generally, these errors are only noticed after sending an important email or document. Detecting mistakes manually can be difficult, but grammar checkers make the process simple and efficient. These tools are sophisticated software programs designed to identify and correct spelling errors, inappropriate word usages, incorrect verb forms, and more. Businesses rely on these tools to ensure clear and professional communication, enhancing their image in the market. In education, they are invaluable for helping students improve their writing skills. Popular options include Grammarly, Hemingway Editor, and Grammar Slammer, among others.

Most grammar checking tools are straightforward to use, offering a similar user experience across platforms. Once familiar with one, it’s easy to apply the same process to others. For example, using Grammarly’s free plan involves visiting their website or installing a browser extension. After signing in, click on the “New” button to start editing. You can either type directly into the editor, paste content from another document, or upload files. The tool will then highlight errors on the right side of the screen, providing an overall score for your writing and suggestions for improvements. Additional features may include assessments of clarity, engagement, and delivery quality, helping you refine your work further.

You can easily correct highlighted mistakes using the Grammarly editor itself.

A tool like Grammarly also offers a premium subscription plan, which requires payment. These paid plans can detect a wider range of errors compared to the free version.

What Should You Look For in a Grammar Checker?
Your specific needs will determine what features are most important in a grammar checking tool. Still, there are some essential features that all users should consider.

These include:
1. Extensive Compatibility
To be truly useful, your grammar checker should work across different operating systems and devices. For instance, Grammarly is highly versatile, available as a desktop app for Windows and Mac, compatible with iOS and Android devices, and offers extensions for Chrome, Firefox, and Edge.

2. Translation Capabilities
If you need to communicate in languages other than English, having a tool that can translate content is valuable. Ginger, for example, not only corrects grammar mistakes but also supports translation into more than 40 languages.

3. Overall Score Display
A helpful feature is an overall readability or quality score. This helps you gauge how polished your document is. A high score indicates readiness, while a low score points to areas needing improvement. Grammarly and WhiteSmoke, for example, provide accurate scoring systems.

4. Document Statistics Generation
For projects that require adherence to specific formats or standards, detailed statistics such as word count, sentence length, paragraph length, and estimated reading time are useful. Choose tools that provide these insights to streamline your editing process.

5. Typo Corrections
Typographical errors, including punctuation mistakes, often go unnoticed by basic spell checkers. A good grammar tool should catch even the smallest errors and suggest corrections efficiently.

6. PDF Compatibility
Many documents are shared and stored in PDF format. Ensuring your grammar checker can handle PDFs—edit, review, and save them—is a significant advantage. Most top tools support this function.

7. Third-Party Integrations
Seamless integration with other applications can save time and effort, especially if you frequently use platforms like Word, Outlook, Google Docs, or Scrivener. For example, ProWritingAid offers extensive integrations and works well with WordPress, making it ideal for bloggers.

Executive Summary
Using grammar checkers makes editing and proofreading much easier, while also enhancing your writing skills. However, each tool has distinct features and capabilities, so it’s important to choose one that aligns with your specific needs and expertise.

If you’re on a tight budget, free options like Scribens or Virtual Writing Tutor can be effective. But for the best overall performance, the premium version of Grammarly remains the top choice.

Which grammar checker do you plan to use, and what features matter most to you? Share your thoughts below.