Grammarly
FreemiumThe most universally useful writing tool on this entire list - everyone should have this installed regardless of what else they use.
Visit Grammarly→Overview
Grammarly remains the gold standard for writing quality assurance - grammar, style, tone, and now AI generation. The browser extension is used by over 30 million people daily.
Pricing
Free (grammar and spelling only), Pro $12/mo billed annually, Business $15/user/mo.
Pros
- +Browser extension works in Gmail, Docs, Slack, LinkedIn, and more
- +Tone detection flags unexpectedly harsh or confusing writing
- +Free tier covers 95% of day-to-day grammar needs
- +Plagiarism checker integrated in Pro tier
Cons
- -Premium tier is overpriced vs. free GPT-4o alternatives
- -AI generation features are basic compared to dedicated writing tools
- -Sometimes too aggressive with corrections that change your voice
- -Business features thin compared to Jasper or Copy.ai
Score Breakdown
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