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Head-to-head · Grammar Checkers

Grammarly vs Microsoft Editor

  • 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
Microsoft Editor #3 in Grammar Checkers 9.0/10 Free plan Free plan✓ 3 of 5 features Try Microsoft Editor

Grammarly leads on 2 checks, Microsoft Editor on 0, and 5 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
  • Most featuresGrammarly · 5 of 5

Grammarly scores higher on our rubric for grammar checkers: 9.4 against 9.0 out of 10; our editors rank them #1 and #3.

Grammarly offers desktop app; Microsoft Editor doesn't. Grammarly leads on languages supported: 24 versus 23.

Grammarly is the better fit for broad, polished grammar and writing support. Microsoft Editor is the better fit for microsoft 365 users wanting integrated checking.

  • Grammarly fits best

    Broad, polished grammar and writing support

  • Microsoft Editor fits best

    Microsoft 365 users wanting integrated checking

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Side by side

Feature Grammarly 9.4/10 Visit ↗ Microsoft Editor 9.0/10 Visit ↗
At a glance
Editor score 9.4 9.0
Ranking #1 in Grammar Checkers #3 in Grammar Checkers
Best for Broad, polished grammar and writing support Microsoft 365 users wanting integrated checking
Pricing model Free plan + paid Free plan + paid
Starting price $12/user/mo —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Mobile, Browser extension Cloud, Desktop, Mobile, Browser extension
Platforms Web, Windows, macOS, iOS, Android, Chrome extension Web, Windows, macOS, iOS, Android, Chrome extension
Support Docs Docs
Integrations 8 integrations 7 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Grammarly 5/5 · Microsoft Editor 3/5
Browser extension ✓ ✓
Desktop app ✓ (best) —
Mobile app ✓ ✓
Style suggestions ✓ ✓
Tone detection ✓ (best) Not checked yet
Specs
Languages supported 24 (best) 23
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
  • Checks spelling, grammar, punctuation, capitalization, and style
  • Adds clarity, concision, formality, vocabulary, and readability suggestions
  • Integrates directly with Word, Outlook, and Microsoft Edge
Cons
  • The Free plan includes 100 AI prompts per month
  • The listed Pro price requires annual billing
  • Enterprise pricing requires contacting sales
  • Premium features require a Microsoft 365 subscription
  • Integration coverage centers on Microsoft products
  • Standalone Editor browser extensions were retired in 2025
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 →

Microsoft Editor is a writing assistant for spelling, grammar, punctuation, capitalization, and style. It is designed for people who write in Microsoft Word, Outlook, Word for the web, and Microsoft Edge, especially Microsoft 365 users who…

Read the review →
  1. GrammarlyGrammar Checkers 9.4Free plan
  2. Microsoft EditorGrammar Checkers 9.0Free 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

  • Microsoft Editor — where it wins

    • Checks spelling, grammar, punctuation, capitalization, and style
    • Adds clarity, concision, formality, vocabulary, and readability suggestions
    • Integrates directly with Word, Outlook, and Microsoft Edge

    Where it doesn't

    • Premium features require a Microsoft 365 subscription
    • Integration coverage centers on Microsoft products
    • Standalone Editor browser extensions were retired in 2025

More comparisons

All grammar checkers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update