Grammarly
The everywhere proofreader — grammar, clarity and tone as you type.
Standout features
Grammarly works wherever you write — email, docs, the browser — fixing grammar and sharpening clarity and tone in real time.
Worldwide search interest, indexed 0–100 · Google Trends.
Grammarly is the most widely used AI writing assistant — real-time grammar, clarity and tone help wherever you type.
- From the company now called Superhuman (Grammarly founded 2009).
- Works across browser, desktop, email and docs.
- Fixes errors and improves clarity and tone live.
- 40M+ daily users.
Grammarly is a layer over everything you write.
- Real-time corrections in almost any text field.
- Clarity, conciseness and tone suggestions.
- Generative rewrites and drafting with prompts.
- Now part of a broader Superhuman productivity suite.
A free tier, with paid plans for more.
Grammarly fits anyone polishing their own writing.
- People who want a live proofreader everywhere.
- Professionals sharpening emails and documents.
- Non-native English writers wanting confidence.
- People who want a from-scratch drafting partner (ChatGPT/Claude).
- Those uneasy with an always-on assistant watching input.
No tool is perfect — the trade-offs to weigh:
- More polish than creation — it edits more than it drafts.
- Always-on extension raises privacy questions.
- Best features need Pro.
- Now bundled into a broader suite.
- ✓Live proofreading wherever you type
- ✓Clear grammar, clarity and tone help
- ✓Generative rewrites built in
- ✓Huge, proven user base
- ✓Useful free tier
- ✕More editor than drafting tool
- ✕Always-on extension raises privacy questions
- ✕Best features need Pro
- ✕Now bundled into a broader suite
People love that Grammarly quietly improves their writing everywhere they type, catching errors and softening tone without breaking flow. The recurring concerns are privacy around an always-on assistant and that the most useful features sit behind Pro. Sentiment is positive, especially among professionals and non-native English writers.
Grammarly is made by the company now called Superhuman (formerly Grammarly, Inc.).
Company figures are drawn from public disclosures and reputable trackers (gathered Jun 2026). User and revenue numbers are estimates and move fast.
Pick up to two other coding tools to see them head-to-head on the same rubric.