Grammarly

Overview

Grammarly is the leading AI writing assistant for English, and since October 2025 it is part of Superhuman — the AI-native productivity suite that unites Grammarly, Coda, Superhuman Mail and Superhuman Go. Built on 16+ years of experience and trusted by over 40 million daily users across 1M+ applications and websites, Grammarly offers grammar checking, tone adjustments, paragraph rewrites, AI detection and humanizing features.

Key Features

• Grammar & correctness: catch grammar, spelling, punctuation and clarity issues in real time across apps and browsers.
• Tone detection & adjustments: understand and fine-tune the tone of your writing; fluency, conciseness and inclusivity suggestions.
• Rewrites & translation: unlimited paragraph rewrites and translations in 15+ languages.
• AI detection & plagiarism checker: spot AI-generated text and fix accidental plagiarism.
• Proofreader agent: advanced document proofreading with tailored feedback.
• Humanizing features: make AI-assisted writing sound natural, on-brand and like you — with brand tones and style guides for teams.
• Writing everywhere: browser extension (Chrome, Edge), desktop apps (Mac/Windows), mobile (iOS/Android), Microsoft Word add-in and web.
• Superhuman Go integration: proactive AI assistant that connects data and coordinates writing agents wherever you work.

Pricing

• Free: $0 — essential writing suggestions, AI chat, 6-language support.
• Pro: $12/member/month (annual) or $15 monthly — unlimited rewrites & translations, AI detection, plagiarism checker, brand tones.
• Business: $33/member/month (annual) or $40 monthly — adds Superhuman Mail, inbox AI, CRM/connector integrations.
• Enterprise: custom — SSO, advanced security/admin controls, data loss prevention, dedicated support.

Platforms

• Web, desktop (Mac/Windows), iOS/Android apps
• Browser extensions (Chrome, Edge, Firefox, Safari)
• Microsoft Word add-in, Google Docs, and 1M+ integrations

Best For

Writers, professionals and teams who want polished, error-free, on-brand English writing across email, docs, and content — from individuals on the free tier to enterprises needing compliance-grade writing tools.

FAQ

Is Grammarly now Superhuman?

Grammarly's parent company rebranded to Superhuman in October 2025, unifying Grammarly, Coda, Superhuman Mail and Go; Grammarly remains available as a standalone product.

Is there a free version?

Yes — the Free plan covers essential writing suggestions, AI chat and 6-language support.

How much does Pro cost?

$12/member/month billed annually ($15 monthly), including unlimited rewrites, AI detection and plagiarism checking.

Where does Grammarly work?

Web, desktop, mobile, browser extensions, Word add-in and 1M+ app/website integrations.