The Verdict
Grammarly remains the gold standard for grammar and style checking. Its AI rewrite features have improved significantly, but it's best used as a polishing layer rather than a content generator.
How we score
Output Quality = accuracy, nuance, and edit-readiness across 12 standardized tasks. Ease of Use = onboarding time, UI clarity, and learning curve. Value = capability per dollar vs. competitors. Features = breadth of capabilities, integrations, and API. Overall = weighted average (Quality 35%, Ease 25%, Value 20%, Features 20%).
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What is Grammarly?
Grammarly is an AI-powered writing assistant that checks grammar, spelling, punctuation, tone, and style. It works as a browser extension, desktop app, and IDE plugin.
We tested Grammarly for 3 weeks as a daily writing companion across emails, documents, and code comments.
What We Like
- Best grammar checking available
- Works everywhere (browser, desktop, mobile)
- Tone detection is excellent
- Team style guides
- Good free tier
Limitations
- AI writing features trail competitors
- Not a content generator
- Premium features require paid plan
- Can over-correct casual writing
Who Should Use It
Anyone who writes professionally and wants a safety net for grammar, tone, and clarity. Especially valuable for non-native English speakers and teams that need consistent writing standards.
Ready to try Grammarly?
Grammarly remains the gold standard for grammar and style checking. Start free, upgrade when you're ready.