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Head-to-head · Grammar Checkers

Grammarly vs LanguageTool

  • Updated Oct 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score Grammarly #1 in Grammar Checkers 9.4/10 Free plan Free plan✓ 5 of 5 features Visit Grammarly
LanguageTool #2 in Grammar Checkers 9.2/10 Free plan Free plan✓ 5 of 5 features Visit LanguageTool

Grammarly leads on 0 checks, LanguageTool on 1, and 6 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreGrammarly · 9.4/10
  • Free planboth

Grammarly scores higher on our rubric for grammar checkers: 9.4 against 9.2 out of 10; our editors rank them #1 and #2.

LanguageTool leads on languages supported: 31 versus 24.

Grammarly is the better fit for broad, polished grammar and writing support. LanguageTool is the better fit for multilingual users and self-hosted deployments.

  • Grammarly fits best

    Broad, polished grammar and writing support

  • LanguageTool fits best

    Multilingual users and self-hosted deployments

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Side by side

Feature Grammarly 9.4/10 Visit ↗ LanguageTool 9.2/10 Visit ↗
At a glance
Editor score 9.4 9.2
Ranking #1 in Grammar Checkers #2 in Grammar Checkers
Best for Broad, polished grammar and writing support Multilingual users and self-hosted deployments
Pricing model Free plan + paid Free plan + paid
Starting price $12/user/mo —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Mobile, Browser extension Cloud, Self-hosted, Desktop, Mobile, Browser extension
Platforms Web, Windows, macOS, iOS, Android, Chrome extension Web, Windows, macOS, iOS, Chrome extension
Support Docs Email, Live chat, Docs
Compliance SOC 2, ISO 27001, HIPAA, PCI DSS, SSO/SAML, 2FA GDPR
Integrations 8 integrations 11 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Grammarly 5/5 · LanguageTool 5/5
Browser extension ✓ ✓
Desktop app ✓ ✓
Mobile app ✓ ✓
Style suggestions ✓ ✓
Tone detection ✓ ✓
Specs
Languages supported 24 31 (best)
Our review
Pros
  • Checks grammar, spelling, clarity, fluency, style, tone, and punctuation
  • Works across web, desktop, mobile, browser extensions, and major business apps
  • Pro adds rewrites, plagiarism checks, AI detection, and team writing controls
  • Supports grammar, punctuation, style, and paraphrasing in 31 languages
  • Works across web, desktop, mobile, office apps, browsers, and APIs
  • Open-source core with a self-hosted LanguageTool server option
Cons
  • The Free plan includes 100 AI prompts per month
  • The listed Pro price requires annual billing
  • Enterprise pricing requires contacting sales
  • Premium Monthly costs €19.90 per user per month
  • Team pricing is limited to up to 20 users
  • Advanced features are concentrated in paid plans
Our verdict

Grammarly is an AI-powered writing assistant for individuals, professionals, teams, and educational users. It checks grammar, spelling, punctuation, clarity, fluency, wordiness, style, and tone across its online Editor, desktop…

Read the review →

LanguageTool is a multilingual writing assistant for individuals, professionals, teams, and developers. It checks grammar, spelling, punctuation, and style through a web editor, browser extensions, desktop applications, mobile software,…

Read the review →
  1. GrammarlyGrammar Checkers 9.4Free plan
  2. LanguageToolGrammar Checkers 9.2Free plan

Strengths and trade-offs

  • Grammarly — where it wins

    • Checks grammar, spelling, clarity, fluency, style, tone, and punctuation
    • Works across web, desktop, mobile, browser extensions, and major business apps
    • Pro adds rewrites, plagiarism checks, AI detection, and team writing controls

    Where it doesn't

    • The Free plan includes 100 AI prompts per month
    • The listed Pro price requires annual billing
    • Enterprise pricing requires contacting sales

  • LanguageTool — where it wins

    • Supports grammar, punctuation, style, and paraphrasing in 31 languages
    • Works across web, desktop, mobile, office apps, browsers, and APIs
    • Open-source core with a self-hosted LanguageTool server option

    Where it doesn't

    • Premium Monthly costs €19.90 per user per month
    • Team pricing is limited to up to 20 users
    • Advanced features are concentrated in paid plans

More comparisons

All grammar checkers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update