Grammarly

About

Grammarly is the rare AI tool that doesn't need an introduction — 40 million users and 50,000+ organizations already use it. But most people still think of it as a spell checker with delusions of grandeur. The 2026 version is something else entirely. It's an AI communication platform that rewrites sentences, adjusts tone for different audiences, generates full drafts from prompts, and checks for plagiarism — all embedded directly in your browser, email client, and IDE. The free plan is genuinely useful, not a teaser. You get basic grammar and spelling correction, tone detection, and 100 AI prompts for text generation. That's enough for casual writers and students. But the real product starts at Pro — $12/month per member (billed annually) or $30/month if you pay monthly. Pro unlocks full sentence rewrites, tone adjustment to match your audience (formal for executives, casual for Slack, technical for documentation), and 2,000 AI prompts per month. Brand consistency tools ensure your team's writing sounds like it came from one voice. For developers, Grammarly works inside VS Code, JetBrains IDEs, and terminal-based tools. It catches ambiguous variable naming in comments, improves documentation clarity, and rewrites commit messages that actually explain what changed. If you've ever reviewed a PR with the message "fix stuff," you understand the value. The Enterprise plan adds unlimited AI prompts, confidential mode, data loss prevention, and granular permission controls. Grammarly claims enterprise clients achieve a 17x ROI, saving approximately $5,000 per employee annually through reduced editing cycles and fewer miscommunications. Grammarly's competitive moat is distribution. It lives everywhere you write — Gmail, Google Docs, Slack, Microsoft Office, social media, and 500,000+ apps via browser extension. You don't open Grammarly; Grammarly opens with you. That ubiquity is why it retains users who've tried and dropped ChatGPT, Jasper, and every other AI writing tool. The limitation is depth: Grammarly makes everything you write 20% better, but it won't generate a 3,000-word blog post from scratch the way Jasper or Writesonic will.

Key Features

• AI-powered grammar, spelling, and punctuation correction
• Full sentence rewriting with tone adjustment for different audiences
• 2,000 AI prompts per month for text generation (Pro plan)
• Plagiarism detection with citation generation
• Brand consistency tools for unified team voice
• Browser extension working across 500,000+ apps and websites
• IDE integration for VS Code, JetBrains, and developer tools
• Enterprise data loss prevention and confidential mode

Use Cases

• 1Marketing teams maintaining consistent brand voice across all written communications
• 2Developers improving code comments, documentation, and commit messages
• 3Sales teams polishing outreach emails and proposals before sending
• 4Remote teams reducing miscommunication in Slack and async messaging
• 5Content creators checking plagiarism and improving readability scores