Capabilities
- grammar
- tone-detection
- rewriting
- brand-voice
Pricing tiers
- +Grammar + clarity checks
- +Browser extension
- +Generative AI prompts
- +Tone detection
- +Rewrites
- +Brand voice
- +Plagiarism check
- +Style guide enforcement
- +Admin + SSO
- +Custom dictionaries
Pros & cons
- +Lives inside every text field in every app — friction-free
- +Brand voice + style-guide features are best-in-class for marketing teams
- +Tone detection is genuinely useful, not gimmicky
- −Generative features feel bolted-on vs a real LLM
- −Suggests changes too aggressively for some writing styles
- −Per-seat pricing on Enterprise adds up fast
What is Grammarly?
Grammarly is a writing & chat tool — 文法・トーン・ブランドボイスをリアルタイムで補正するライティングアシスタント — あらゆるアプリで利用可能。.
Out of the box, Grammarly is built to grammar, tone detection, and rewriting.
Who should use Grammarly?
Grammarly earns a place on a shortlist for three workflows: teams that need to grammar, solo operators who tone detection, and builders who want to rewriting.
Frequently asked questions about Grammarly
- How much does Grammarly cost?
- Grammarly has a free tier with paid plans starting at $12/mo. The free tier is usually enough to evaluate whether it fits your workflow before paying.
- What's the best alternative to Grammarly?
- In the writing & chat category, our top editorial pick is ChatGPT — OpenAI's flagship chat assistant — the broadest, most-used AI product on earth.. It's the most direct alternative our editors have used hands-on. See the alternatives section for more options sorted by category fit.
- What can I use Grammarly for?
- Grammarly is built primarily to grammar. It also supports tone detection, rewriting, brand voice — see the capabilities section above for the full list.
Alternatives in Writing & chat
- ChatGPTGPT-5
OpenAI's flagship chat assistant — the broadest, most-used AI product on earth.
✍️Writing & chatFreemium · from $20chatreasoningvisionvoice - ClaudeSonnet 4.6
Anthropic's chat assistant — preferred by developers and writers for its tone and reasoning.
✍️Writing & chatFreemium · from $20chatreasoningvisionartifacts - Gemini2.5 Pro
Google's chat assistant with 1M+ token context and tight Workspace integration.
✍️Writing & chatFreemium · from $20chatreasoningvisionvoice - Wordtunev3
AI rewriting assistant — instantly rephrase sentences to be clearer, shorter, more casual.
✍️Writing & chatFreemium · from $10rewriteparaphraseshortentone AI writing partner built for fiction — brainstorm plots, generate scenes, rewrite in your voice.
✍️Writing & chatSubscription · from $10fictionrewritebrainstormstory-bible- Lexv2
Distraction-free AI writing editor — Google-Docs-like with /commands to invoke AI inline.
✍️Writing & chatFreemium · from $16editorinline-aicollaborateminimal
