Grammarly is the world’s most popular AI writing assistant, checking grammar, spelling, punctuation, clarity, engagement, and delivery in real time. Grammarly Business adds brand tone consistency. The new Grammarly AI uses generative AI to rewrite sentences, suggest full email drafts, and improve tone.
Pros
- ✅ Works everywhere (browser, Word, Gmail)
- ✅ Excellent grammar checking
- ✅ Tone detection
- ✅ Very generous free plan
Cons
- ❌ Premium features expensive
- ❌ Rewrites can over-sanitize writing style
Best For
Anyone who writes professionally — marketers, students, executives, and non-native English speakers