Trending September 2023 # 18 Best Free Grammar Checker Software (2023) # Suggested October 2023 # Top 17 Popular |

Trending September 2023 # 18 Best Free Grammar Checker Software (2023) # Suggested October 2023 # Top 17 Popular

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A grammar checker is a software that checks your writing for grammatical mistakes, appropriate punctuation, misspellings, and issues related to sentence structure. Some programs also evaluate tone, style, and syntax to ensure your writing is flawless. These tools have functionality to check active and passive voice as well as sentence quality in your paragraphs.

Following is a handpicked list of Top Grammar Check Tool with their popular features and website links. The list contains both open source (free) and commercial (paid) software.

Top Pick


Grammarly is one of the best grammar checking software, which is widely used free grammar check app. It offers numerous writing styles, suggestions for grammar, vocabulary, and syntax. This active voice check software allows you to add words to your dictionary.

Visit Grammarly

Best Grammar (Sentence) Quality Checker Software & Tools

Grammarly is one of the best grammar checking software, which is widely used free grammar check app. It offers numerous writing styles, suggestions for grammar, vocabulary, and syntax. This active voice check software allows you to add words to your dictionary.

#1 Top Pick



Active and Passive Voice: Yes

Punctuation Check: Yes

Free Trial: Lifetime Free Basic Version

Visit Grammarly


It helps you to detect spell mistakes and also offers suggestions for using the right pair of words.

This free grammar checker also points out confused prepositions.

You can check plagiarism by evaluating text against over eight billion web pages.

Offers Google Chrome, MS-Word, MS Outlook, plugins.

Prowriting Aid is one of the best grammar checker software that checks sentence quality, checks punctuation, passive and active voice usage. It allows you to check grammar, readability, and plagiarism related issues. This feature-rich tool is available in both free and premium versions.


Offers detailed report on all grammar errors

Runs a readability analysis allows you to test how easy it is to read and understand your draft

Provides a thesaurus for word suggestions

This is a free grammar checker supports Mac and Windows devices

You can Integrate with MS Word, Gmail, Open Office, outlook mail, Google Docs, Google Chrome, etc.

Linguix AI-based writing assistant is a grammar checker tool which helps you to check real time grammar errors. This is one of the best grammar and punctuation checker tool that provide alerts and recommendations.

It allows you to copy-paste your existing text and it also provides alternative words and phrases and spelling corrections and eliminating poor phrase and sentence structures and typos.


Real time Spelling and grammar corrections

Suggest forgotten punctuation mistakes

Master your style

Offers Chrome browser extension

Provide performance statistics

Context-appropriate recommendations

#4) Writer

Writer is an AI writing assistant tool for businesses. This grammar check app enables you to customize writing guidelines to your unique brand and write with the same style, terminology, and brand voice.


Up to 200 custom terms,

Chrome extension

Provide content security

Standard writing guidelines

Plain language

Grammar and spelling

#5) Hemmingway


Clean and easy-to-use interface

Does not require an internet connection

Helps you if you want to break your large size sentences into small part to make it more readable.

This grammar checker tool Improves readability for the average user

Suggestions and pointers are detailed

#6) Ginger Software

The Ginger Grammar Checker allows you to write better English. It is one of the best free grammar checker software that works on uses patent-pending technology that will enable you to correct grammar mistakes, spelling, and misused word mistakes.


Allows contextual spelling correction

Correct Grammar mistakes regarding subject, verb, and agreement

Misused words correction

Correct written texts with ease

This is a grammar checker free tool also offers multiple integrated options. When you select a word, a pop-up appears at the bottom where you can find associate words and the thesaurus or the dictionary definition.


Free grammar checker tool that display key Statistics

Prepositional Phrase Index

This sentence quality checker allows you to check Readability Index

The flow of your content structure, sentence length, and word length

#8) After The Deadline

After the Deadline is a free-to-use grammar and spellcheck application for the web. This grammar checker tool helps you to detect errors and provides smart suggestions for your content.


Advanced style checking

Contextual spelling check

Misused words detecting

Grammar checking software

Errors explanation tips

#9) Online Correction


This best free grammar checker tool helps you to checks Grammar and spelling errors

Stylistic hints

This best grammar checker helps you to check stylistic issues


You can review suggestions for sentence construction and vocabulary

Supports English dialects

#10) Druide Antidote

Antidote is a powerful French and English language grammar checker online tool. This grammar correction software offers error analysis, grammar diagnostics, an online dictionary, and much more. You can run this tool, either standalone or with Microsoft Word.


Advanced corrector with smart filters

Multiple dictionaries with powerful search tools

Clear and detailed language guides

Punctuation: Excessive or missing comma

This is a best grammar checker online tool which provide detailed syntactic analysis of sentences

Allows you to display bold, italic, and emojis

#11) PaperRater

PaperRater software offers grammar, spelling, and action check. This one of the best comma checker tool that also provides a feature of a plagiarism checker.

However, in a free plan, you will only be able to know what percentage of your text is copied. However, it does not display an actual line of text.


Grammar & spelling check

Plagiarism check Integrated into a proofreader

Provides ad-free results

Accurate writing suggestions provided by this best grammar checker tool.

#12) Grammar Check

GrammarCheck is a web-hosted and free grammar checker app that has functions that help you to write their content more effectively and flawlessly. You can check your text by directly type or copy-paste a write-up into a given dialog box.


Basic grammar and spelling checking

Common active and passive voice checker

Web-hosted and easy to access anytime and anywhere

Easy-to-use via simple copy-pasting of content

Display info about the capitalization, punctuation, and spelling rules

#13) Writefull

Writefull helps you to improve the quality and consistency of your writing. This tool provides quick feedback on your writing by checking your text against large databases of languages such as Google Books, Google Scholar, Google News, etc.


Allows you to hear text pronounced

Find out common words used in the article

Review synonyms of a given word

This best grammar checker (free) tool helps you to translate your text into the English language

#14) Language Tool

LanguageTool is a grammar checker tool that offers spell and grammar checking. This open source grammar checker software allows users to find and fix grammatical and stylistic issues in their articles or text. You will also enable or disable rules in the language tool app.


It is one of the best free grammar checking tools which offers personal Dictionary

Stand-Alone App for desktop

Grammar, Spelling, and style Check

Suggested correction

Keyboard shortcuts

It supports multiple languages like English, French, German, Polish, and Russian.

#15) Reverso

Reverso is a website for online translation aids and language services. This software to check grammar includes online dictionaries, multilingual concordances, spell checking, and conjugation tools.


Instant Translation up to 11 languages.

Indexes of millions of words.

Examples of use in context.

Option to view reverse translations.

Frequency details.

Definitions or conjugations.

Supported platforms: iOS, Android, web.

#16) Scribens

Scriben is an useful paragraph checker tool which allows you to correct more than 250 types of common writing and spelling mistakes. This of the best grammar software that helps you to resolve the common grammatical errors of verbs, nouns, pronouns, prepositions, punctuation, and typography corrections.

This is one of the best grammar checker app that checks the Grammar of your texts and finds spelling mistakes.


A powerful, free English grammar checker

Useful Writing And Style Tools

Extensions & API

Offers Writing and Styling Tools

Detects repetitions, redundancies and suggests synonyms

Easy User Interface

#17) SpellCheckPlus

SpellCheckPlus is a web-based spelling and grammar checker ideal for students who use English as their second language. This is one of the best passive voice checker tool which is defined as both student and teacher-friendly. This free grammar checker seeks to aid students in identifying errors in their Writing.


Text archiving or writing portfolio

Process-based learning

Punctuation checker and capitalization

Grammar and spelling errors

Grammar explanations

Interactive grammar exercises and active voice checker

Full-screen editor

Commonly confused words

#18) Outwrite

Outright is a cloud-based best grammar checker solution for small businesses. This grammar check tool allows you to manage sales and expenses, calculate taxes, and facilitate electronic payments.


It is one of the best grammar checker free tool.

This is the best grammar and It helps you to correct spelling, Grammar, and punctuation errors.

You can meet your desired word count with customized suggestions.

Write compelling sentences by using a more active voice.

This is one the best grammar checker free app which helps you to track readability and grade level scores in real-time.

Enhance your vocabulary with stronger synonyms.

Buying Guide:

A grammar checker software checks your writing for grammatical mistakes, punctuation, misspellings, and sentence structure issues. Some programs also evaluate tone, style, and syntax to ensure your writing is flawless. In addition to these features, you might be interested in using one of the best plagiarism checkers to ensure the originality of your content.

Following are some of the best grammar checker software:






After The Deadline

Online Correction

A grammar checker tool helps you find each sentence in a text and look up each word in the Dictionary. They can parse the sentence into a form that matches the grammar using various rules and algorithms to detect multiple errors, like agreement in tense, number, word order, etc.

Grammar checking tools such as Grammarly or ProWritingAid offers their users the ability to install separate MS-word plugin extension. Once you install the plugin it will checks for mistake in grammar as you type in word. This will help you eliminate the grammatical mistakes without using the browser.

Here are the benefits of Grammar checker Software:

Saving editing time by having the program proofread your work first.

Helps you to improve readability, so writing appeals to the intended audience.

Learning better Grammar by paying attention to suggested corrections.

Improving your writing skills by learning from and correcting your mistakes.

Helps you to avoid plagiarism as it also correct plagiarism mistakes.

There are many grammar checker tools that allow you to check your grammar online. All you need to do is visit their official website.

Copy and paste your text to be examined into the selected area and enjoy a basic grammar check. The checker will highlight your mistakes and offer their suggested corrections.

Some grammar checker tools like Autocrit, Grammarly, and Prowriting aid offer personal Dictionary. However, all the grammar check tool does not provide that option.

Most Grammar checkers comply with data privacy laws. They have strict privacy policies as well as checks and balances to ensure employees do not have access to the content you create. You can anytime delete the content stored on their servers.

Best Grammar (Sentence) Quality Checker Software & Tools

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