Top 25 AI Grammar Checkers
Ranked by ToolRank — ToolPotion's proprietary traction engine
#1 right nowGrammarly91Elite- measured
- 40
- avg. ToolRank
- 43.1/100
- combined audience
- 8.6M
ToolRank
ToolRank is ToolPotion’s proprietary ranking engine.
It continuously evaluates hundreds of signals across the open web — real traffic and popularity, audience and community strength, authority and longevity, adoption and engagement — processing millions of data points to place every tool where it has earned to be.
Every AI type is measured by its own tailored model: what proves traction for a SaaS app is not what proves it for an open-source framework or a creator channel. Missing a platform never counts against a tool — ToolRank judges the evidence that exists.
No paid placement. No self-reported numbers.
If you want one grammar checker that works across the apps and sites you write in, Grammarly is the best, with tone adjustments and full-sentence rewrites. QuillBot adds strong paraphrasing, and LanguageTool is the pick for 30+ languages. — Editor's verdict
Quick picks
- # 1Top PickGrammarlyAI AppGrammarly offers AI writing assistance to enhance your writing skills. With personalized guidance and text generation, it helps users write clearly and effectively across various applications and websites.91ToolRankElite
- # 2Runner UpQuillBotAI AppQuillBot is an AI-powered writing tool designed to enhance your writing by providing paraphrasing, summarizing, and grammar checking features. It aims to improve clarity and coherence in your text.75ToolRankStrong
- # 3Third Place
LanguageToolAI AppAn AI-powered grammar, spelling, and style checker that works in over 30 languages across browsers, desktop apps, and office programs, with a free tier and no sign-up needed.71ToolRankStrong
- 4
WordtuneAI AppWordtune is an AI writing assistant that paraphrases, rewrites, corrects grammar, adjusts tone, and summarizes documents, articles, webpages, and videos, helping users express themselves clearly in English.57ToolRankSolid - 5
ProWritingAidAI AppProWritingAid is an AI-powered writing assistant and editor that helps storytellers craft, polish, and elevate their work. It offers in-depth analysis, actionable feedback, and tailored suggestions to improve grammar, style, and reader engagement. Works with popular writing apps, providing a comprehensive toolkit for writers.56ToolRankSolid - 6
Hemingway EditorAI AppHemingway Editor is a writing app that makes your writing bold and clear by highlighting lengthy or complex sentences, adverbs, passive voice, and common errors so you can simplify and tighten your prose.52ToolRankSolid
- 7
Trinka AIAI AppTrinka AI is an AI-powered writing and grammar checker built for academic, technical, medical, and professional writing, offering advanced grammar and language enhancement, paraphrasing, plagiarism and AI detection, and publication tools.51ToolRankSolid - 8
SaplingAI AppSapling is an AI-powered language model toolkit designed for enterprises, developers, and customer-facing teams. It provides grammar checking, autocomplete, AI detection, and more through an API and SDK, enhancing communication and productivity.50ToolRankSolid - 9
AntidoteAI AppAntidote is a comprehensive writing assistance software suite that helps users write error-free and find the right words. It integrates a corrector, dictionaries, and guides, making it an essential tool for anyone who writes, whether professionally or personally.47ToolRankSolid - 10
OutwriteAI AppOutwrite is an AI writing assistant that goes beyond grammar checking, helping you fix spelling and grammar, improve style and structure, and rewrite sentences wherever you write online.45ToolRankSolid - 11
Ginger Chrome ExtensionGinger's AI-powered tool enhances English communication by correcting grammar, spelling, and punctuation. It offers sentence rephrasing, synonym lookup, definitions, and translation for over 40 languages, working seamlessly across websites as you type.42ToolRankSolid - 12
TextGearsAI AppAn online grammar, spelling, and readability checker with an API for businesses, analyzing text across many languages and scoring it on multiple quality criteria.39ToolRankEmerging - 13
Ginger SoftwareAI AppGinger Software is an AI-powered writing assistant that enhances your writing by correcting grammar, spelling, and style errors. It offers personalized editing solutions for users on desktop and mobile, making writing easier and more efficient.36ToolRankEmerging - 14
Linguix: Grammar CheckerLinguix is an AI-powered writing assistant that enhances your content with real-time grammar and punctuation checks. It offers paraphrasing, text humanization, and ChatGPT integration to refine clarity, style, and length across millions of websites in multiple languages.34ToolRankEmerging - 15
WhiteSmoke Grammar CheckerAI AppWhiteSmoke is an all-in-one English grammar checker, spell checker, and style checker. It enhances writing quality for students, professionals, and businesses, ensuring error-free content with ease and confidence.32ToolRankEmerging
- 16
Trinka AI for ChromeTrinka AI is a next-generation language and grammar checker designed for academic and technical writing. It enhances clarity, conciseness, and tone while correcting complex grammar errors. This AI assistant works in real-time across various websites, offering secure and free usage for individual users.31ToolRankEmerging - 17
CorrectoCorrecto is an AI-powered Chrome extension designed to enhance writing in Spanish. It offers real-time grammar and spelling correction, along with a paraphrasing tool to rewrite texts. Improve clarity, adjust tone, and enrich vocabulary for various writing needs.31ToolRankEmerging - 18
Sagai Writing AssistantSagai is a Chrome extension that acts as a writing assistant, helping users improve grammar and wording across the web. It functions like a proofreader directly in your browser, suggesting clearer and error-free text. Users highlight text, click the extension, and receive improved versions to copy and paste.31ToolRankEmerging - 19
ScribensAI AppScribens is a free grammar checker that corrects a wide variety of mistakes, including conjugation, agreement, word confusion, punctuation, typography, and more. It helps users improve their writing skills in English and over 40 other languages.30ToolRankEmerging - 20
Zoho BluePencilZoho BluePencil is a secure, AI-powered writing assistant that provides real-time spelling, grammar, and style suggestions as you type across the web. It helps identify errors, suggests improvements for clarity, and enhances the impact of your written content, making your work more professional and effective.30ToolRankEmerging - 21
Grammar CheckAI AppGrammarCheck.me is an AI-powered tool designed to correct grammatical errors, including spelling, punctuation, and tense issues. It offers multilingual support and provides instant suggestions to enhance writing quality.30ToolRankEmerging - 22
Corrector AppAI AppA free online grammar and spell checker available in English, Tagalog, and many other languages, with an AI content detector and no account or download required.30ToolRankEmerging - 23
Pitaya Proofreader (火龙果校对)Pitaya Proofreader is a bilingual grammar checking tool for Chinese and English. It helps users write emails, documents, and messages fluently by quickly identifying spelling and grammar errors, offering suggestions for tense, collocations, and grammar issues.29ToolRankEmerging - 24
WProofreaderWProofreader is a multi-language AI grammar and spell checker extension. It corrects texts, rephrases content, and offers style suggestions. Available in free and business plans, it supports over 20 languages with enhanced AI for English, German, and Spanish, ensuring secure writing assistance.29ToolRankEmerging - 25
FixMeBot - AI Writing AssistantFixMeBot is a Chrome extension that enhances writing across 90+ languages. It corrects errors, paraphrases text, translates, generates replies for social media, and answers questions. Ideal for professionals and students seeking polished, impactful communication online.29ToolRankEmerging
Quick picks
Editor's round-up
This board ranks AI apps that catch grammar, spelling and style mistakes. Grammarly leads with an elite ToolRank of 90. It checks grammar in real time, adjusts tone, rewrites full sentences and detects plagiarism. QuillBot is second and adds paraphrasing and summarizing tools to its grammar checker. LanguageTool takes third with support for 30+ languages, browser add-ons and a free tier that needs no sign-up.
Writers with specific needs have good options. Wordtune rewrites sentences and switches between casual and formal tones in one click. ProWritingAid suits novelists with Chapter Critique and Manuscript Analysis. Hemingway Editor highlights long sentences, adverbs and passive voice so you can tighten your prose. Trinka AI is built for academic, technical and medical writing, with citation checks and a journal finder.
Budget and niche picks sit lower. Scribens is a free checker for English and 40+ other languages. Sapling offers grammar checking through an API and SDK for teams. Antidote combines a corrector with dictionaries and language guides.
Choose Grammarly for everyday writing and LanguageTool if you write in several languages. ProWritingAid or Hemingway Editor make sense when style matters as much as correctness.
How to choose AI grammar checkers
Check your languages
Many checkers focus on English. LanguageTool covers 30+ languages with automatic detection, Scribens handles English plus 40+ others, and Linguix supports 14 languages.
Pick your rewriting level
Some apps only flag errors, while others rewrite for you. Hemingway Editor highlights problems for you to fix, and Wordtune and QuillBot offer full rewrites and paraphrasing.
Match your writing genre
Academic papers and novels need different feedback. Trinka AI checks citations and formal language for research, while ProWritingAid critiques chapters and whole manuscripts.
Confirm where it works
A checker helps only inside the apps you use. LanguageTool plugs into Chrome, Firefox, Word and Google Docs, and Scribens integrates with Microsoft Office and Google Workspace.