RANKINGS/AI TOOLS/AI GRAMMAR & SPELLING CHECKERS

Top 10 AI Grammar & Spelling Checkers

10 ranked on capability, adoption, value, momentum and trust, with a plain verdict on every entry.

LISTER SCORE · UPDATED REGULARLY

Grammarly dominates with comprehensive AI capabilities suitable for professionals and students alike. ProWritingAid excels for serious writers and editors who need in-depth analytics. Hemingway Editor offers simplicity and clarity focus for anyone seeking readable, concise prose.

RANKENTRYSCORETRENDFROM

GrammarlyOver 30 million people use Grammarly, with detection powered by machine learning trained on billions of words95.0NEWFree

ProWritingAidProWritingAid provides over 20 different reports on your writing, including readability, pacing and clichés92.7NEW$10 per month

Hemingway EditorUses colour coding to highlight issues by severity, making it simple for writers to spot problems instantly90.3NEW$10 per month

Microsoft Word EditorIntegrated into Microsoft 365, allowing seamless grammar checking without leaving Word or Outlook88.0NEW$6.99 per month

QuillBotQuillbot's paraphrasing engine can rewrite sentences in seven different styles to improve variety and clarity85.7NEW$9.95 per month

LanguageToolSupports over 30 languages and dialects, making it ideal for multilingual writing teams83.3NEW$4.99 per month

GingerGinger analyses text within its grammatical and linguistic context rather than relying solely on rule-based flagging81.0NEWCustom

WhiteSmokeOffers writing templates for business communications, resumes and personal correspondence78.7NEW$4.99/month (billed annually)

ReversoReverso specialises in grammar and style checking for multiple European languages with context-aware suggestions76.3NEWFree (Premium from €9.99 per month)

Scribd EditorIntegrated within Scribd's publishing platform, offering grammar checking alongside document sharing and collaboration74.0NEW$11.99 per month

CURATED · UPDATED REGULARLY

The ranking, in detail

Grammarly

Grammarly uses advanced AI to check grammar, spelling, tone and plagiarism across web browsers, email, word processors and social media. It offers real-time suggestions with explanations and adapts to your writing style over time.

From FreeBest for Essay writing and grammar checking

95.0

ProWritingAid

ProWritingAid combines AI-powered grammar checking with comprehensive writing analytics, including readability scoring, style reports and detailed suggestions for improvement. It integrates with Word, Scrivener, Google Docs and web browsers.

From $10 per monthBest for Long-form fiction and academic writing

92.7

Hemingway Editor

Hemingway Editor highlights complex sentences, passive voice, adverbs and readability issues in real time, encouraging clearer and more direct prose. It works as a web app and desktop application with a focus on simplicity and readability.

From $10 per monthBest for Bloggers and copywriters focusing on readability

90.3

Microsoft Word Editor

Built-in AI-powered editing in Microsoft Office

Microsoft Word Editor leverages AI to provide grammar, spelling, style and inclusivity suggestions directly within Word and Outlook. It offers accessibility insights and tone detection as part of Microsoft 365 subscriptions.

From $6.99 per monthBest for Microsoft Office users who want integrated checking without additional software

88.0

QuillBot

Quillbot combines grammar checking with paraphrasing, plagiarism detection and citation tools. It emphasises helping users improve phrasing and writing variety whilst maintaining correctness, with integrations for major browsers and writing platforms.

From $9.95 per monthBest for Paraphrasing and vocabulary enhancement

85.7

LanguageTool

LanguageTool is an open-source tool supporting 30+ languages with rules-based and AI-powered checking. It works as a browser extension, web app, desktop application and within various document editors, with a free version available.

From $4.99 per monthBest for Multilingual writers and privacy-conscious users

83.3

Ginger

On-demand mental health coaching and therapy access

Ginger uses contextual grammar checking, spell checking and sentence rephrasing powered by machine learning. It offers browser extensions, mobile apps and a web-based editor, with an emphasis on correcting errors in context rather than flagging rule violations.

From CustomBest for Those seeking professional therapy combined with AI-assisted scheduling and care coordination

81.0

WhiteSmoke

AI writing assistant with advanced language models

WhiteSmoke provides multilingual grammar, spelling and style checking with desktop, web and mobile apps. It includes templates for business and personal writing, plagiarism detection and voice input capabilities.

From $4.99/month (billed annually)Best for Budget-conscious writers needing multi-language support and plagiarism detection

78.7

Reverso

Translation and writing correction for multiple languages

Reverso combines translation, grammar checking and spell checking across 15+ languages. It offers context-aware correction and works as a browser extension and standalone tool, with strong support for European languages.

From Free (Premium from €9.99 per month)Best for Multilingual users and those translating between languages regularly

76.3

Scribd Editor

Writing assistance powered by AI for document quality

Scribd Editor integrates grammar and spelling checking within the Scribd publishing platform alongside document collaboration features. It provides real-time suggestions as you write and supports both personal and professional documents.

From $11.99 per monthBest for Scribd platform users and those publishing or collaborating on documents within that ecosystem

74.0

Frequently asked questions

What is the difference between AI-powered and rule-based grammar checkers?

Rule-based checkers use predefined language rules to flag errors, whilst AI-powered tools use machine learning trained on vast datasets to understand context and catch nuanced mistakes. AI tools generally achieve higher accuracy, especially for complex sentences and contextual errors that rule-based systems miss.

Do these tools work offline or do they require an internet connection?

Most tools offer both online and offline functionality. Grammarly, ProWritingAid and LanguageTool have desktop applications that work offline, though cloud sync features require internet. Some lighter tools like Hemingway Editor work fully offline in their desktop versions.

Are these grammar checkers suitable for non-native English speakers?

Yes, many are particularly effective for non-native speakers. Ginger specialises in contextual correction for ESL learners. LanguageTool and Reverso excel for multilingual users. Grammarly and Quillbot also provide strong support with clear explanations of rules and suggestions.

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Top 10 AI Grammar & Spelling Checkers

The ranking, in detail

Frequently asked questions

What is the difference between AI-powered and rule-based grammar checkers?

Do these tools work offline or do they require an internet connection?

Are these grammar checkers suitable for non-native English speakers?

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