Overview

Grammarly is a aI writing assistant for grammar, clarity, tone, and style across every platform. It handles grammar, clarity, tone, and plagiarism, and it's best suited for anyone wanting ai-powered writing improvement. It has been around since 2009, giving it a 17-year head start in building out integrations and refining the product.

The free plan is free basic grammar checks — enough for most people to evaluate whether it fits.

Strengths

  • Includes Grammar as a core feature, purpose-built for ai writing workflows
  • Includes Clarity as a core feature, purpose-built for ai writing workflows
  • Free basic grammar checks — generous enough for most small teams to get real work done
  • Established product with 17+ years on the market and a mature ecosystem

Weaknesses

  • Free plan exists but key features are locked behind the paid upgrade
  • Fewer built-in features means you may need additional tools to cover gaps
  • Ecosystem of third-party integrations is smaller than the market leaders in ai writing
  • Mobile experience lags behind the desktop version in features and polish

Quick info

Category
AI Writing
Starting price
Free
Free tier
Yes — Free basic grammar checks
Open source
No
Best for
Any size
Founded
2009

Last updated 2026-04-12

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