The standard for English proofreading. It flags grammar, spelling, and tone in real time, living in your browser and Office apps so you can fix as you write.
Pricing
- FreeFree
Core grammar and spelling checks with some AI assistance.
- ProFrom $12/mo (annual)
Full rewrites, tone adjustments, plagiarism checks, and more.
- EnterpriseContact sales
Org-wide style guides and admin controls.
※ For reference as of January 2026. Prices and plans change often — always check the official site for the latest.
Key features
Real-time proofreading
Flags and fixes grammar, spelling, and punctuation as you type.
Tone adjustment
Detects how you sound and rewrites toward confident, friendly, etc.
Works everywhere
Lives in browser extensions, Office, and mobile keyboards.
Generative AI
Drafts, summaries, and reply suggestions from prompts.
Tier lists featuring this service
Categories aggregate their whole subtree; threads count their own votes. Tap a row to open the tier list.
Not ranked in any tier list yet. Cast the first vote in a thread you care about.