Best grammar checker Chrome extensions (2026)
The 20 most-used grammar checkers on the Chrome Web Store, ranked by real store users. Listings rated under 3 stars on 20+ ratings are left out.
Top 20 grammar checkers, ranked
- 1
Grammarly: AI Writing Assistant and Grammar Checker App
Grammarly for Chrome helps you write with confidence. Get AI support for grammar, clarity, and tone, from first draft to final edit.
≈40M users4.5★ from 43.1K ratingsUpdated 5 days ago9 permissions - 2
Quillbot: AI Writing Assistant with Humanizer, Paraphraser & AI Detector
Improve your writing - Detect and Humanize AI content, create images, Paraphrase, Check Grammar, AI Chat, and more!
≈6M users4.7★ from 6K ratingsUpdated 4 days ago11 permissions - 3
AI Grammar Checker & Paraphraser – LanguageTool
Instantly Enhance Your Texts with LanguageTool’s Grammar Checker and Paraphrasing Tool
≈2M users4.7★ from 12.6K ratingsUpdated 3 weeks ago5 permissions - 4
Wordtune: AI Paraphrasing and Grammar Tool
Unlock your potential with Wordtune's free AI writer – paraphrase, rewrite, translate, fix grammar, and more.
≈1M users4.6★ from 2.4K ratingsUpdated 6 months ago9 permissions - 5
Jetwriter AI: Reply Emails, Ask Page, Summarize, Fix Grammar, and More
Write emails & messages, chat with page, improve writing, translate, and do much more. Powered by the most intelligent AI models
≈500K users4.6★ from 1.4K ratingsUpdated 3 weeks ago4 permissions - 6
AI Grammar and Spell Checker by Ginger
Improve your English communication with Ginger's all-in-one AI spelling and grammar checker!
≈500K users3.8★ from 1.6K ratingsUpdated 12 months ago6 permissions - 7
SkrivaText
Discover the spelling and grammar checker of the future, created by experts in language, speech therapy and pedagogy.
≈400K users3.7★ from 3 ratingsUpdated 7 weeks ago5 permissions - 8
ProWritingAid: Grammar Checker & Paraphrasing Tool
Gain confidence in your writing with the best grammar checker and paraphrasing tool that works wherever you do.
≈200K users4.8★ from 7K ratingsUpdated 4 days ago11 permissions - 9
JustDone: GPT-4o AI Writing Assistant & Grammar Checker
Elevate your writing with JustDone — your all-in-one tool for grammar checking, paraphrasing, AI writing, and more.
≈200K users3.7★ from 272 ratingsUpdated 11 months ago3 permissions - 10
Zhongwen: Chinese-English Dictionary
Great tool for learning Chinese. Includes links to Chinese Grammar Wiki. Supports adding words to Skritter.
≈100K users4.6★ from 737 ratingsUpdated 2 weeks ago3 permissions - 11
QuestionAI Homework Powered AI Assistant
AI Copilot can answer screenshot queries and assist with writing, summarizing, translating, and grammar checking.
≈100K users4.8★ from 2.1K ratingsUpdated 6 months ago11 permissions - 12
Grammar Checker and AI tool - Correcto
Improve your writing with the AI-powered online grammar and spelling checker in Spanish and our paraphrasing tool.
≈70K users4.6★ from 176 ratingsUpdated 12 months ago6 permissions - 13
Private Grammar Checker - Harper
The private grammar checker for 21st Century English
≈60K users4.2★ from 128 ratingsUpdated 10 days ago3 permissions - 14
Sapling Grammar Checker and Writing Assistant
AI-powered grammar checking, paraphrase, and autocomplete for email, docs, chat, and more.
≈60K users4.4★ from 130 ratingsUpdated 4 days ago13 permissions - 15
Grammar Checker
Grammar, spelling and style checker. Get suggestions on writing improvements
≈40K users4.2★ from 45 ratingsUpdated 7 months ago1 permissions - 16
Linguix: Grammar Checker and AI Writing App
Improve your writing and create compelling content with Linguix grammar checker & rewriter.
≈30K users4.5★ from 547 ratingsUpdated 5 weeks ago8 permissions - 17
Fix Grammar and Spelling
Instantly fix grammar and spelling in any text field with AI. Correct punctuation, typos and tone on any website in one click.
≈30K users4.8★ from 57 ratingsUpdated 8 days ago8 permissions - 18
Free Spell Checker for Google Chrome™
Check your grammar, spelling and style. See word and character counts...!
≈30K users4.0★ from 114 ratingsNot updated for 2+ years3 permissions - 19
Scribens: Grammar Checker and Writing Assistant
Scribens is a grammar checker and a writing assistant.
≈20K users3.8★ from 78 ratingsUpdated 2 months ago2 permissions - 20
Semrush AI Writer and Editor
Improve your writing, edit text, check grammar, and create content on the go.
≈20K users4.5★ from 11 ratingsUpdated 3 weeks ago7 permissions
Head-to-head comparisons
Grammar checkers: questions
What is the most popular grammar checker Chrome extension?
Grammarly: AI Writing Assistant and Grammar Checker App is the most used, with ≈40M users and a 4.5-star rating. Quillbot: AI Writing Assistant with Humanizer, Paraphraser & AI Detector is next with ≈6M users.
Which grammar checker extension has the best rating?
Of the listings with 100+ ratings, ProWritingAid: Grammar Checker & Paraphrasing Tool rates highest: 4.8 out of 5 from 7K ratings.
Are these grammar checkers still maintained?
10 of the 20 listed here were updated in the last 30 days. Each card shows how recently it was updated.