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10 Best Free Online Grammar Checkers on 2024

Clear and correct writing is paramount for effective communication. Whether you are a student, professional, or casual writer, maintaining impeccable grammar can significantly enhance your credibility and readability. Fortunately, there are numerous free online grammar checkers available that can help you polish your writing. Here, we present a comprehensive review of the 10 best free online grammar checkers, detailing their features, benefits, and how they can assist you in improving your writing.

1. Grammarly

Grammarly is widely regarded as the most popular and powerful online grammar checker available today. It provides an extensive array of tools that surpass basic grammar checks.

Key Features:

  • Advanced Grammar and Spelling Checks: Detects a wide range of errors from simple typos to complex grammatical mistakes.
  • Style and Tone Suggestions: Provides suggestions to improve clarity, engagement, and delivery of your writing.
  • Plagiarism Detection: Checks your text against billions of web pages to ensure originality.
  • Integration: Available as a browser extension, desktop app, and mobile app.


Grammarly’s AI-powered insights make it an invaluable tool for anyone looking to improve their writing. It’s particularly useful for professionals who need to maintain a high standard of written communication.

2. ProWritingAid

ProWritingAid combines grammar checking with in-depth writing style analysis, making it a favorite among authors and professional writers.

Key Features:

  • Detailed Reports: Offers over 20 different writing reports, including grammar, style, and readability.
  • Thesaurus and Contextual Thesaurus: Helps find the perfect word for your text.
  • Integrations: Compatible with MS Word, Google Docs, and Scrivener.


ProWritingAid’s focus on in-depth analysis helps writers refine their work to a professional standard, providing tools that aid in both grammar correction and stylistic improvements.

3. Hemingway Editor

The Hemingway Editor is crafted to enhance your writing by making it bold and clear, prioritizing readability and conciseness.

Key Features:

  • Readability Scores: Assesses your text’s readability and suggests improvements.
  • Highlight Complex Sentences: Identifies hard-to-read sentences and passive voice.
  • Formatting Options: Allows for text formatting within the app.


Hemingway Editor is perfect for writers who want to ensure their work is clear and easy to read, making it ideal for content meant for a broad audience.

4. Ginger Software

Ginger Software offers a robust grammar and spell checker, along with unique features like a personal trainer and translation tool.

Key Features:

  • Grammar and Spell Checker: Comprehensive error detection.
  • Sentence Rephraser: Suggests alternative phrasing to improve writing style.
  • Translation: Translates text into over 60 languages.


Ginger Software’s unique features, such as the sentence rephraser and personal trainer, set it apart from other grammar checkers, making it a versatile tool for improving overall writing skills.

5. Slick Write

Slick Write is a fast, reliable grammar checker that also focuses on stylistic errors and readability.

Key Features:

  • Grammar and Style Checks: Detects grammar, punctuation, and stylistic errors.
  • Writing Statistics: Provides detailed stats about your writing.
  • Integrations: Can be integrated into your browser or used as a standalone web app.


Slick Write’s comprehensive statistics and stylistic checks make it a great choice for writers who want detailed feedback on their writing habits and overall style.

6. WhiteSmoke

WhiteSmoke offers a robust set of tools for grammar checking, translation, and writing enhancement.

Key Features:

  • Grammar and Spell Checker: Detects a wide range of errors.
  • Translation and Dictionary: Supports translation in over 55 languages.
  • Style Checker: Provides suggestions for improving writing style.


WhiteSmoke is particularly useful for non-native English speakers due to its translation features, making it a valuable tool for those who write in multiple languages.

7. PaperRater

PaperRater combines grammar checking with writing suggestions and plagiarism detection, making it a comprehensive tool for students and educators.

Key Features:

  • Grammar and Spelling Checks: Detects errors and provides suggestions.
  • Plagiarism Detection: Ensures the originality of your text.
  • Writing Suggestions: Offers feedback on style and vocabulary.


PaperRater’s focus on educational feedback makes it an excellent choice for students looking to improve their writing skills and avoid plagiarism.

8. LanguageTool

LanguageTool is an open-source grammar checker that supports multiple languages, making it ideal for multilingual writers.

Key Features:

  • Grammar and Spell Checking: Detects a variety of errors in over 20 languages.
  • Style Suggestions: Improves the style and readability of your text.
  • Integration: Available as a browser extension, desktop app, and add-on for various writing platforms.


LanguageTool’s support for multiple languages and open-source nature makes it a versatile and accessible tool for a wide range of users.

9. Scribens

Scribens offers detailed grammar checking and provides explanations for each correction, helping users learn from their mistakes.

Key Features:

  • Grammar and Spell Checking: Detects errors and explains corrections.
  • Vocabulary Enhancement: Suggests synonyms to diversify vocabulary.
  • Integrations: Available as a browser extension and for the integration with Google Docs and MS Word.


Scribens’ educational approach to grammar checking makes it an excellent tool for users who want to improve their English skills and understand the rationale behind corrections.

10. Reverso

Reverso provides grammar checking along with powerful translation tools, making it ideal for users who work with multiple languages.

Key Features:

  • Grammar and Spell Checking: Identifies and corrects errors.
  • Translation: Offers translation in multiple languages.
  • Contextual Examples: Provides examples of how the phrases and words are used in context.


Reverso’s combination of grammar checking and translation tools makes it a valuable resource for multilingual writers and those looking to improve their language skills.


The right grammar checker can significantly enhance the quality of your writing. Each of these tools offers unique features and benefits that cater to different writing needs. Whether you are a student, professional, or casual writer, utilizing these free online grammar checkers will help you produce clear, error-free, and engaging content.

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