Chrome //
Extensions 
Chrome
Web store
select chrome_id_no,plugin_tag_line,plugin_name,plugin_icon,sitemap_url,oldvsnew_comment from final_chrome_totaldata_sept2022 where MATCH(plugin_name) AGAINST('+grammar' IN Boolean MODE) order by users desc
Grammarly: Grammar Checker and Writing App
Improve your writing with Grammarly's communication assistance—including spell check, grammar check, punctuation check, and more.
Microsoft Editor: Spelling & Grammar Checker
Write with confidence with Microsoft Editor, your intelligent grammar, spelling, and style checking writing assistant.
Grammar & Spell Checker — LanguageTool
Check your texts for spelling and grammar problems everywhere on the web
Grammar and Spelling checker by Ginger
Improve your English communication with Ginger's #1 spelling and grammar checker!
ProWritingAid Grammar Checker & Writing Coach
The best writing style and grammar checker for everything you send, share, tweet or publish.
Outwrite — Grammar checker & rewrite tool
Write perfect content with Outwrite. Check spelling & grammar, improve writing style, find synonyms and paraphrase sentences.
Grammar Checker and Rewrite Tool — Linguix
Improve your writing and create compelling content with Linguix grammar checker & rewriter.
Sapling Grammar Checker and Writing Assistant
Improve your writing with a spell + grammar checker and writing suggestions.
Spell checker and Grammar checker by Scribens
A powerful, free spelling and grammar checker. Scribens corrects 250 types of grammar mistakes. English and French.
Grammar.com
Check your text and writing for style, spelling and grammar problems everywhere on the web
Becorrect – English Grammar & Spell Checker
Becorrect extension automatically checks and corrects your English on the websites you visit.
NG Spelling and Grammar Checker (Portuguese)
An automatic spelling and grammar checker for common errors in Portuguese.
Typeright: Grammar & Spelling Checker
Check your texts for grammar, spelling, or punctuation mistakes. Polish up your writing with style and synonym suggestions!
WProofreader Secure Grammar Checker
Сorrect and improve your messages, docs, and emails with WProofreader secure writing assistant.
Karenina Multilingual AI Grammar Checker
Performs AI style & grammar correction for English, Spanish, French, German, Chinese, Japanese & more!
English Grammar
★ ★ ★ ★ ★ WAGmob: An eBook and app platform for learning, teaching and training !!! ★ ★ ★ ★ ★
WAGmob brings you SimpleNEasy,…
Chinese Grammar Wiki Anki and Progress Helper
This extensions help you export example sentences (for Anki etc) and mark what grammar points you have studied
Lapis AI - proofreading and grammar
A better proofreading tool. This is for non-native speakers who have to use English in their work.
Bad Grammar
Test the grammar vigilantes in your life by changing every appearance of its/it's, your/you're and there/they're/their they see.