Grammar, Spelling, and Style

LanguageTool finds many more mistakes than your average writing tool, including tone and style improvements.

Works Everywhere You Write

LanguageTool works in all major browsers, as well as common writing tools like MS Word or LibreOffice.

Multilingual by Nature

Check your writing in 30+ languages, such as English, German, French, Portuguese, Spanish, Dutch, and more.

Did you know?

Our Browser Add-On Works Anywhere on the Web

Receive tips on how to improve your text while typing an e-mail, a blog post, or just a simple tweet. Whatever language you’re using, LanguageTool will automatically detect it and provide suggestions. To respect your privacy, no text is stored by the browser add-on.

Best-rated grammar checker for Microsoft Edge

Over 1 million users trust LanguageTool with their writing

What else?

Frequently Asked Questions

Make your text sound professional and avoid embarrassing style, punctuation, and grammar mistakes

Is LanguageTool a comprehensive grammar checker?

Yes, LanguageTool is a powerful tool that goes beyond simply checking for spelling errors. It's a comprehensive writing assistant that offers in-depth analysis of your text, including grammar checks, word choice suggestions, and even style recommendations. Think of it as your personal grammar and spell checker, helping you craft polished and professional content.

How well does LanguageTool grammar checker detect comma errors?

LanguageTool, a powerful grammar checker excels at identifying and correcting punctuation errors, including commas. Its punctuation checker can differentiate between optional and required commas, ensuring your writing is polished. Plus, it can handle even the most complex sentence structures with its advanced comma check.

How does error detection and correction by LanguageTool work?

The error display and suggestion cards are shown automatically and directly while typing. This means that texts can be checked and corrected in just a few moments. To see synonyms, simply double-click on any word.

Which languages can be checked with LanguageTool's grammar checker?

LanguageTool grammar checker masters more than 30 languages and dialects. Its main languages are English, Spanish, German, French, Dutch, and Portuguese. In its English version, you can choose between six standard varieties (US, UK, Canada, Australia, New Zealand, and South Africa).

Is LanguageTool free?

LanguageTool is available in two versions. The free version corrects spelling as well as simple punctuation and some style mistakes. Only the Premium version will show you all errors and give you the best possible text. Team accounts for companies are also available.

Does LanguageTool work on my program?

LanguageTool is not bound to a specific program or website. There are several extensions and add-ons available, so it can be used in all common internet browsers. In addition, you can find a dedicated text editor as an app for iOS, macOS (Apple), and Windows. All you need is just one user account.

Is LanguageTool suitable for paraphrasing sentences?

LanguageTool now offers an A.I.-based paraphraser in addition to correction. This can help you to rewrite entire sentences to make them simpler, shorter, or more formal.

Can LanguageTool help me correct a bachelor or master thesis?

If you have to write a term paper, bachelor thesis or master thesis at a university, LanguageTool can help you to be sure that it is free of errors. The writing assistant’s style check is also particularly helpful for other academic texts in schools or at publishing houses. By the way, students get a discount for LanguageTool.

✅ Correction	Grammar, spelling & style
👓 Punctuation	Detects missing commas
🌎 Multilingual	English, Spanish…
🎁 Free	No sign-up required

Amaze Your Friends, Colleagues, and Customers With Your Clear and Precise Writing

LanguageTool works perfectly with Firefox and many other services around the web. Start today and use LanguageTool wherever you write.

List of all supported services

Grammar Checker for Firefox