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Head-to-head · AI Grammar Checkers

LanguageTool vs Antidote

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score LanguageTool #2 in AI Grammar Checkers 9.2/10 Free plan Free plan✓ 2 of 5 features Visit LanguageTool
Antidote #3 in AI Grammar Checkers 8.9/10 30-day trial Free trial✓ 2 of 5 features Visit Antidote

LanguageTool leads on 1 check, Antidote on 0, and 2 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreLanguageTool · 9.2/10
  • Free planonly LanguageTool
  • Free trialonly Antidote

LanguageTool scores higher on our rubric for ai grammar checkers: 9.2 against 8.9 out of 10; our editors rank them #2 and #3.

LanguageTool offers free plan; Antidote doesn't.

LanguageTool is the better fit for multilingual users prioritizing value. Antidote is the better fit for serious English or French proofreaders.

  • LanguageTool fits best

    Multilingual users prioritizing value

  • Antidote fits best

    Serious English or French proofreaders

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Side by side

Feature LanguageTool 9.2/10 Visit ↗ Antidote 8.9/10 Visit ↗
At a glance
Editor score 9.2 8.9
Ranking #2 in AI Grammar Checkers #3 in AI Grammar Checkers
Best for Multilingual users prioritizing value Serious English or French proofreaders
Pricing model Free plan + paid Paid
Starting price — €48/user/yr
Free plan ✓ (best) —
Free trial — 30 days
Deployment Cloud, Self-hosted, Desktop, Mobile, Browser extension Cloud, Desktop, Mobile, Browser extension
Platforms Web, Windows, macOS, iOS, Chrome extension Web, Windows, macOS, Linux, iOS, Android, Chrome extension
Support Email, Live chat, Docs Email, Phone, Docs
Integrations 11 integrations 4 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features LanguageTool 2/5 · Antidote 2/5
Browser extension ✓ ✓
Desktop app ✓ ✓
Custom rules Not checked yet Not checked yet
Team administration Not checked yet Not checked yet
AI rewrite suggestions Not checked yet Not checked yet
Specs
Supported languages Not checked yet Not checked yet
Document integrations Not checked yet Not checked yet
Our review
Pros
  • Checks grammar, spelling, punctuation, and style across 31 languages
  • Supports web, desktop, mobile, office apps, APIs, and self-hosting
  • Offers AI paraphrasing, style guidance, and personal dictionaries
  • Corrects grammar, spelling, typography, punctuation, and style
  • Combines reformulation, tone detection, dictionaries, and language guides
  • Works across desktop, web, mobile, and browser connectors
Cons
  • Advanced features require a paid plan
  • Team pricing is limited to up to 20 users
  • The broad feature set may exceed simple proofreading needs
  • No free plan; subscriptions are billed annually
  • Focused on English and French rather than broad language coverage
  • Some advanced capabilities require choosing the two-language plan
Our verdict

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

Read the review →

Antidote is writing-assistance software for individuals, families, organizations, and educational users who need more than basic grammar checking. Its corrector covers grammar, spelling, typography, punctuation, and style, while integrated…

Read the review →
  1. LanguageToolAI Grammar Checkers 9.2Free plan
  2. AntidoteAI Grammar Checkers 8.930-day trial

Strengths and trade-offs

  • LanguageTool — where it wins

    • Checks grammar, spelling, punctuation, and style across 31 languages
    • Supports web, desktop, mobile, office apps, APIs, and self-hosting
    • Offers AI paraphrasing, style guidance, and personal dictionaries

    Where it doesn't

    • Advanced features require a paid plan
    • Team pricing is limited to up to 20 users
    • The broad feature set may exceed simple proofreading needs

  • Antidote — where it wins

    • Corrects grammar, spelling, typography, punctuation, and style
    • Combines reformulation, tone detection, dictionaries, and language guides
    • Works across desktop, web, mobile, and browser connectors

    Where it doesn't

    • No free plan; subscriptions are billed annually
    • Focused on English and French rather than broad language coverage
    • Some advanced capabilities require choosing the two-language plan

More comparisons

All AI grammar checkers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update