Grammarly
The writing assistant that beat being a feature.
The Spinoza Score
Reviewed by Kamran Arshad. See how we evaluate · Updated 2026-07-12.
- Category
- writing
- Starts at
- Free
- Platforms
- Launched
- Jul 2009
- Last reviewed
- 2026-07-12
Survived the 'won't ChatGPT eat them' question and kept growing.
Grammarly was supposed to be the canonical 'feature, not a company' casualty of the LLM era. Instead it became the enterprise writing layer — sales emails, support docs, brand voice — exactly because it's not a chat interface. The integration depth is the moat.
What Grammarly actually looks like
Scroll inside the panel to see the full homepage. Live screenshot — updates as the product evolves.
Best for
- Anyone writing for work
- Non-native English writers
- Enterprise communication
Not for
- Creative writers wanting a hands-off pass
What it actually does
Real-time corrections
Grammar, spelling, punctuation, and clarity fixes as you type.
Tone detection
Shows how your writing will land, and helps you adjust it.
Generative AI
Draft, rewrite, shorten, and reply with built-in AI.
Works everywhere
Browser, desktop, and integrations across the apps you use.
Clarity & concision
Rewrites wordy sentences into something sharper.
Plagiarism & tone (Pro)
Originality checks and brand-tone controls on paid plans.
Composite of hands-on testing and editorial review — five dimensions, each rated 0–5 against the same published rubric for every tool in the category. How we score →
- Overall
- 4.0/5
- Output Quality
- 4.3/5
- Control & Editing
- 4.5/5
- Ease of Use
- 4.7/5
- Range
- 4.2/5
- Value
- 4.3/5
What it costs, by tier
Grammar, spelling, and clarity basics.
Generative AI, tone, and advanced suggestions.
Common questions about Grammarly
Is Grammarly free?
Yes, the core grammar and clarity checks are free. Pro adds generative AI, tone, and more from around $12/mo.
What is Grammarly best for?
Improving everyday writing, email, docs, posts, with corrections, clarity, and tone right where you type.
Grammarly or a general AI assistant?
Grammarly polishes what you write in place; a general assistant is better for generating long-form content from scratch.
Ready to try Grammarly?
There's a real free tier — you can test the verdict yourself in five minutes.
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