Grammarly is the most famous writing assistant on earth — and its free plan is genuinely useful. Here's what Pro really costs in 2026 and the free alternatives worth using instead.
Grammarly's free plan is genuinely useful — unlimited grammar, spelling, punctuation and clarity suggestions for everyday writing. Pro is $12/month billed annually ($144/year) or $30 monthly, adding AI rewriting, tone adjustments, and plagiarism checks. That's a real product, but for most people the free plan plus a free AI assistant (ChatGPT, Gemini, DeepSeek) covers 90% of writing needs at $0. If you write professionally all day, Pro is worth a look; otherwise, save the money.
Grammarly is an AI writing assistant that checks grammar, spelling, punctuation, clarity, tone and style as you type — in your browser, desktop apps, email, docs and Slack. It now includes full AI writing features (generate, rewrite, reply) powered by its own models. It's used by millions of professionals, students and non-native English speakers worldwide.
Verified via multiple 2026 pricing sources (Grammarly's pricing page is JavaScript-rendered; figures cross-checked):
Free: $0 — unlimited grammar/spelling/punctuation, limited clarity & tone, no AI generation
Pro: $12/month billed annually ($144/year) or $30/month billed monthly — everything in Free + full AI writing, plagiarism checks, tone & formatting
Business: ~$25/user/month — team admin, style guide, centralized billing
Prices are USD; confirm current pricing on grammarly.com — plans change regularly.
The key insight: the free tier covers everyday writing. Pro matters mainly for heavy professional writing, academic work (plagiarism) or tone-sensitive business communication.
Yes — the free plan is a real product, not a trial. You get unlimited grammar, spelling and punctuation correction across all your apps, forever. The limits are on clarity/tone suggestions (daily quota) and AI generation (Pro-only). If you mainly need "stop embarrassing typos," the free plan is genuinely enough.
These free options cover most writing needs.
Best for: open-source grammar checking, free
Best for: free paraphrasing and rewriting
Best for: free all-round AI writing — our full review
Best for: completely free AI writing — our full review
Best for: free AI writing with strong reasoning — our full review
| Tool | Free access | AI writing | Starting price | Best for |
|---|---|---|---|---|
| Grammarly | Grammar check free | Pro only | $12/mo (annual) | Grammar everywhere |
| LanguageTool | Yes | Premium only | $0 | Open-source grammar |
| QuillBot | Yes | Free paraphraser | $0 | Rewriting |
| ChatGPT | Yes | Yes (free tier) | $0 | All-round writing |
| Gemini | Yes, unlimited | Yes | $0 | Unlimited AI writing |
| DeepSeek | Yes, unlimited | Yes | $0 | Reasoning + writing |
Yes. The free plan includes unlimited grammar, spelling and punctuation checks plus limited clarity and tone suggestions — a genuinely useful $0 product.
Pro is $12 per member per month billed annually ($144/year), or $30/month billed monthly. Business starts around $25/user/month. The free plan is $0. Confirm on grammarly.com.
Pro adds AI rewriting, tone, plagiarism and more. Worth it for heavy professional writers. For everyday use, the free plan plus a free AI assistant covers most needs at $0.
LanguageTool (open source grammar), QuillBot (free paraphraser), ChatGPT, Gemini and DeepSeek (free AI writing). Most writing tasks can be handled free.
Yes — clarity and tone suggestions are especially helpful for non-native writers, and the free plan already catches most errors.
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