Pluginofficial publisher

Grammarly

Plugin : A set of capabilities installed into an AI application or a host · requires chrome/word/gmail

Real-time English writing assistant across all your apps.

For professional writing in English; of little relevance in French.

Official site Docs

Overall score

7.5 /10

Security: one caveat, see the card

Utility

8.0

Reliability

6.0

Security

One caveat

Ease

1 click · Beginner

Security reflects where data goes, requested permissions and incidents on record at the verification date. It is not a guarantee of zero risk: check the deployment mode and the connections you enable.

What it does, concretely

Writing clearly and professionally in English takes time and careful proofreading. Grammarly works directly inside your everyday tools to correct and improve your text as you type, without switching applications.

The tool analyzes grammar, spelling, sentence structure, and tone in real time. It suggests full sentence rewrites, tone adjustments based on context, and can generate text from your instructions using AI prompts. An AI-generated content detector is also available.

Grammarly is designed for professionals, students, and anyone who writes regularly in English: emails, reports, social media posts, or Word documents. It is used by more than 40 million people and 50,000 organizations.

However, it offers little value for users who write primarily in French or other non-English languages. Advanced rewriting and tone adjustment features are reserved for the paid plan.

What it offers

·Real-time correction of grammar, spelling, structure, and clarity.
·Tone suggestions to adapt your message to the context (professional, casual, etc.). (paid)
·Full sentence rewrites to improve flow and clarity. (paid)
·Text generation via AI prompts: 100 prompts/month on the free plan, 2,000 on Pro.
·AI-generated content detector to identify passages to revise. (paid)
·Text humanizer to restore a personal voice to your writing. (paid)
·Brand style guide compliance for teams. (paid)

Our tips

Install the Chrome extension to get corrections directly in Gmail, Google Docs, and most online text fields.
Check the tone indicator Grammarly displays before sending a professional email: it flags whether your message comes across as too formal or too casual.
Use the 100 free monthly AI prompts for occasional rewriting tasks, and save them for important texts so you do not run out quickly.
For documents containing sensitive information (client data, confidential details), review the terms of use before enabling Grammarly, as the tool reads all text you type.

Watch out

Grammarly reads all text entered in every application where it is active: avoid using it on documents containing sensitive data without first reviewing the terms of use.
The most useful features (sentence rewrites, tone adjustment) are reserved for the paid plan, which significantly limits the value of the free version for professional use.

In practice

Price: Freemium · from 11 €
Commercial use: Commercial use: yes
Available on: web, chrome, word, macos, windows, ios, android
Host: chrome/word/gmail
FR interface: No

Security and data

Rating: Security: one caveat, see the card
Your data: Data with the vendor
Known incidents: Plaintes facturation auto-renew.
Maintenance: Active

Links and repository checked on 25 October 2026 · added on 1 January 2009

How to install Grammarly

1. Go to grammarly.com and create a free account. 2. Download the Chrome extension from the official website or the Chrome Web Store. 3. Pin the extension in your browser for easy access. 4. For Word or desktop applications, download the Grammarly app for Windows or macOS from the official website. 5. Sign in with your account in each application to activate suggestions. 6. Precaution: temporarily disable Grammarly on tabs or documents containing confidential information.

Official documentation ↗

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