AI Grammar Checker & Paraphraser – LanguageTool

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

LanguageTool is a powerful Chrome extension designed to instantly enhance your writing with advanced grammar checking and paraphrasing features. It detects errors beyond basic spell checkers, including grammar mistakes, punctuation issues, and commonly confused words. With support for over 25 languages, it seamlessly works across multiple websites such as Gmail, Facebook, Twitter, and LinkedIn without requiring registration.

This user-friendly tool not only corrects errors but also offers style improvements like synonym replacements, concise rephrasing, and formal alternatives to boost the clarity and professionalism of your texts. LanguageTool respects your privacy by securely sending texts over encrypted connections with no account needed. Whether you're a native or non-native speaker, LanguageTool provides comprehensive proofreading ensuring confident and polished content every time.

Manifest V3
Version:
8.19.4 (Last updated: 2025-04-09)
Creation date:
2022-01-19
Permissions:
  • activeTab
  • storage
  • contextMenus
  • scripting
  • alarms
Size:
14.62M
Full description:
See detailed description
Updated:
a day ago

Other platforms

AI Grammar Checker & Paraphraser – LanguageTool (v8.19.4)
3,000,000+ 4.82 (10,990)
Grammar and Spell Checker - LanguageTool (v8.19.4)
370,485+ 4.69 (4,392)

User reviews

Users appreciate the add-on for its effective spelling and punctuation correction across multiple languages, ease of use, and being free. However, a recurring major issue is that it recently stopped working properly on Microsoft Edge for many users. Some also note a lack of advanced grammar suggestions beyond basic corrections. Overall, while praised for its language support and utility, recent functional problems with Edge have diminished user experience.
Pros
  • Very effective at spelling and punctuation correction.
  • Supports multiple languages and improves communication.
  • Free to use with good basic functionality.
  • Easy to use and versatile across different languages.
  • Highly recommended and praised by many users for improving writing quality.
Cons
  • Stopped working recently on Microsoft Edge for multiple users.
  • The add-on sometimes does not respond or function properly in Edge context menus.
  • Limited in advanced grammar suggestions such as phrasing and sentence construction.
  • No configuration to set it as the main grammar checker in Edge.
  • Some features like 'enable double-click' have stopped working.
Recent reviews
Better then year ago for sure. // Daje radę, Polski język poprawia coraz lepiej.
by Patryk, 2025-04-19

Спасибо за данный инструмент :)
by ..., 2025-03-24

Muito bom...
by Leandro, 2025-03-23
View all user reviews

Extension safety

Risk impact

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

AI Grammar Checker & Paraphraser – LanguageTool is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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  • Good **** ********* *** **** **** *******
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Promo images

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