AI Grammar Checker & Paraphraser – LanguageTool

Name: AI Grammar Checker & Paraphraser – LanguageTool
Rating: 4.814475206979435 (11233 reviews)
Author: https://languagetool.org/

Instantly Enhance Your Texts with LanguageTool’s Grammar Checker and Paraphrasing Tool

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LanguageTool is a powerful Chrome extension that instantly improves your writing with advanced grammar and style checking. Unlike basic spell checkers, it detects complex grammar errors, commonly confused words, punctuation oversights, and offers style suggestions to elevate your texts. It supports over 25 languages, including various English dialects, Spanish, French, German, and more, making it ideal for both native and non-native speakers.

This extension works seamlessly across most websites such as Gmail, Facebook, Twitter, LinkedIn, and many others. It offers a personal dictionary feature, learns your custom words, and respects your privacy by securely checking your texts without storing IP addresses or requiring accounts. LanguageTool is a versatile and user-friendly tool designed to boost your confidence and control over your written content.

Extension AI Productivity Writing Privacy & Security

By:

https://languagetool.org/

Users:

3,000,000

Rating:

4.81

(11,233) 36 new ratings

Version:

8.21.1 Last updated: 2025-06-12

Creation date:

2020-06-16

Risk:

Permissions:

activeTab
storage
contextMenus
scripting
alarms

Size:

14.58MB

Email:

da*****@languagetool.com

URLs:

Website ,Privacy policy

Full description:

Source:

Chrome Web Store

Updated:

18 hours ago

Ranking

# 104 ▼ 8

Other rankings

#13 in Workflow & Planning

#7 in Learn a new language

#8 in The future of writing

#1 in paraphraser keyword 31

#4 in grammar checker keyword 67 ▼ 2

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Other platforms

AI Grammar Checker & Paraphraser – LanguageTool (v8.21.1)

904,701 4.80

(559)

Top 10 Chrome Extensions for Teachers in 2025

Publisher Change History

2024-03-10: Email was changed from su*****@languagetoolplus.com to da*****@languagetool.com

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User reviews

Users appreciate this Chrome extension for effectively improving grammar, ease of use, and value compared to competitors like Grammarly. However, multiple reviews report recent issues where interactive correction features stopped working, particularly in Google Docs, with the problem persisting across browsers. Some users mention the extension sometimes ceases to function properly, necessitating reinstallation. Despite these problems, it remains a favored tool for document editing and learning, especially in its free mode.

Pros

Helps improve grammar and orthography effectively.
User-friendly and easy to use, with helpful corrections.
Works well as a free tool with useful features.
Helpful for writing, document editing, and learning.
Cheaper than Grammarly and generally reliable.

Cons

Recent updates caused features like clicking underlined words to select corrections and synonyms to stop working, especially in Google Docs.
Some users report the extension stops working and requires reinstallation.
Main functions become inaccessible in free mode for some users.
Suggestions sometimes do not appear even though errors are detected.
Issues persist across different browsers and after disabling other extensions.

Recent reviews

I like it ,

To*****, 2025-06-22

La verdad que ayuda a la hora de tener más seguridad en escribir algo que sé con tus propias palabras.

da*****, 2025-06-21

It works. It's fabulous, but it gets in the way of you typing anything in a box. It will NOT let you space ahead. It's so ANNOYING. I had to remove it after 1 day

KC*****, 2025-06-21

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Extension safety

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

AI Grammar Checker & Paraphraser – LanguageTool requires very minimum permissions.

Risk impact analysis details

High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.

Risk likelihood

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension.

AI Grammar Checker & Paraphraser – LanguageTool has earned a good reputation and can be trusted.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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