Grammarly
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AI writing assistant for grammar, clarity, tone, and generative drafts across every app you write in.
Overview
Grammarly started as a grammar checker and has evolved into a full-stack AI writing assistant that works everywhere: Gmail, Docs, Slack, LinkedIn, your CRM. The free tier catches errors; the paid tier adds tone adjustments, clarity rewrites, and Grammarly Premium's generative AI drafts. For SMB teams, Grammarly Business keeps communication on-brand with a shared style guide and enforces tone across email, proposals, and support replies. The company behind Grammarly renamed itself Superhuman in October 2025; the product keeps the Grammarly name, and the Enterprise plan is now sold through Superhuman Go.
Pros & Cons
Pros
- Works in every major app
- Strong brand voice features
- Tone detection is excellent
- Good generative AI drafts
Cons
- Browser extension can slow pages
- Plagiarism check is weaker than dedicated tools
- Advanced suggestions need premium
Workflows that use Grammarly
Get a new AI workflow each week — many feature Grammarly and other tools in this category.