Documents & Writing
Best Grammar Checkers in 2026
Grammar checkers vary in where they can be used and the kinds of feedback they provide. Compared on browser extensions, desktop apps and mobile apps, the entries can help you assess access across your writing routine; style suggestions and tone detection indicate other review capabilities to compare.
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Duden-Mentor Duden-Mentor suits people writing German who want spelling, grammar, punctuation, and style suggestions in browser text fields or supported versions of Word.
From €2.99/mo Free plan Web · Windows · macOS · API9.4 Visit Specs - 02 Cordial From €0.67/mo Free plan Web · Windows · iOS · Android9.4 Visit Specs
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Scribens From €4.99/mo Free trial Web · Windows · macOS · iOS9.3 Visit Specs - 04
Wordvice AI It suits students and academic writers working on research papers or admissions essays, as well as people editing business or everyday writing.
From $8.45/mo Free plan Web · Windows · macOS · Browser extension9.3 Visit Specs - 05 Grammar Guru From $1/mo Free plan Web · Windows · macOS · Linux9.3 Visit Specs
- 06 Grammarly
It suits individuals and teams looking for proofreading, rewrites, and tone guidance, with browser, desktop, and mobile access.
From $12/mo Free plan iOS · Android9.2 Visit Specs - 07
Sapling Sapling suits teams seeking writing assistance and developers integrating language model-powered features.
From $5/mo Free plan Web · Windows · API · Self-hosted9.2 Visit Specs - 08 MerciApp
MerciApp suits writers who want in-line corrections and rewriting tools across browser and desktop workflows.
From €12/mo Free plan Web · Windows · macOS · iOS9.2 Visit Specs - 09
TextGears TextGears may suit students, universities, EdTech, HR, and content or advertising services needing writing checks or API text analysis.
From $2.48/mo Free plan Web · API · Self-hosted · Browser extension9.2 Visit Specs - 10
GrammarCheck.ai GrammarCheck.ai suits writers, students, bloggers, and non-native English speakers who want grammar correction and related writing tools.
From $2.50/mo Free plan Web · Linux · iOS · Android9.2 Visit Specs - 11 Trinka
Trinka suits academic and technical writers who want grammar, style, document proofreading or citation tools.
From $6.67/mo Free plan Web · Windows · macOS · API9.1 Visit Specs - 12 Rechtschreibprüfung24 Free plan Web · API · Browser extension9.1 Visit Specs
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LanguageTool LanguageTool suits people who want spelling, grammar, and style help across multiple languages and writing apps.
Free plan Windows · macOS · iOS · Browser extension9.0 Visit Specs - 14
ProWritingAid It suits English-language writers who want grammar and style suggestions in supported editors or browsers.
From $10/mo Free plan Browser extension9.0 Visit Specs - 15
Linguix Linguix suits individuals who want writing checks, rewriting, and shortcuts across websites and supported apps.
From $5/mo Free plan Web · iOS · Android · API9.0 Visit Specs - 16
Outwrite Outwrite suits students, professionals, casual writers, and teams looking for writing feedback in supported online tools.
From $7.95/mo Free plan Web · Windows · macOS · API9.0 Visit Specs - 17
Ginger Ginger may suit native and non-native English speakers, students and professionals who want writing corrections and rephrasing.
From $0.50/mo Web · Windows · macOS · iOS8.9 Visit Specs - 18 iGrammar
It suits students, professionals, and creative writers looking for writing corrections and revision tools across multiple languages.
From $10/mo Free plan Web · macOS · iOS · Android8.9 Visit Specs - 19
Harper Harper suits students, journalists, and developers who want local grammar and spelling checks in a browser, editor, or desktop app.
Free plan Open source Web · Windows · macOS · Linux8.9 Visit Specs - 20 Microsoft Editor
Editor suits people who want spelling and grammar help in a browser or within Word and Outlook, with guidance across multiple languages.
From $0.83/mo Free trial Web · Windows · macOS · Browser extension8.8 Visit Specs - 21 LexiCheck From $2/mo Free plan Web8.8 Visit Specs
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Corrector.app Free plan Web · Windows · iOS · Android8.8 Visit Specs - 23
CorrectEnglish From $6.67/mo Free plan Web · iOS · Android · Browser extension8.7 Visit Specs - 24 Lexicon Free plan Windows · macOS · Linux · Browser extension8.5 Visit Specs
- 25 Slick Write Free plan Web · Browser extension8.5 Visit Specs
Languages supported, free-plan availability and paid-from pricing add further points to consider. LanguageTool, Sapling and Grammarly are among the listed options, along with Ginger and Trinka. Think about the languages you write in, the devices you use, and whether style or tone feedback is useful alongside grammar review. Use the listed details to weigh what fits your drafting and editing needs.