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Grammar and Spell Checker - LanguageTool
A style and grammar checker for English, German, French, Dutch, Spanish, Russian, and several other languages. It finds many errors that the Google spell checker cannot detect.
LanguageTooler GmbH
102,066 users
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Overview
★ Finds many errors that Google's spell checker cannot detect
★ No registration needed
★ Supports more than 25 languages (see below)

With this extension you can check text with the free style and grammar checker LanguageTool. LanguageTool finds many errors that a simple spell checker cannot detect, like mixing up there/their, a/an, or repeating a word, and it can detect some grammar problems. It supports more than 25 languages, including English, German, Spanish, French, Dutch, Polish, and Russian.

With LanguageTool our aim is to give users a fully-featured grammar checker and proofreader that will enable them to have control and confidence over their content. While LanguageTool is a vital extension for non-native speakers; it’s also smart enough to recognize mistakes that native speakers commonly make and it will improve your writing overall. This grammar and spelling correction works across all variations of common language; distinguishing between U.S. and British English, for instance. LanguageTool also features a personal dictionary for exceptions or words that you might commonly use but that are not found in a conventional dictionary. 

Usage: Just click "Add-ons > LanguageTool > Check text" in the menu to start proofreading your document. The detected errors will be shown on the sidebar. Select an error and it will be highlighted in the text.

Unlike Grammarly and Ginger, LanguageTool works for many languages.

Your privacy is important to us: By default, this extension will check your text by sending it to https://languagetool.org over a securely encrypted connection. No account is needed to use this extension. We don't store the texts you check. In fact, we don't even store your IP address. See https://languagetool.org/privacy/ for our privacy policy.

List of supported languages: English (Australian, Canadian, GB, New Zealand, South African, US), French, German (Austria, Germany, Swiss), Asturian, Belarusian, Breton, Catalan (also Valencian), Chinese, Danish, Dutch, Esperanto, Galician, Greek, Italian, Japanese, Khmer, Persian, Polish, Portuguese (Brazil, Portugal, Angola, Mozambique), Romanian, Russian, Slovak, Slovenian, Spanish, Swedish, Tagalog, Tamil, Ukrainian
Reviews
A User of Grammar and Spell Checker - LanguageTool
September 20, 2019
Awesome tool. Even the basic version has proven very helpful.
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A User of Grammar and Spell Checker - LanguageTool
September 20, 2019
It's a very useful tool for writing stories. I'm a horror writer. :)
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A User of Grammar and Spell Checker - LanguageTool
September 20, 2019
cool
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Micah Richardson
September 20, 2019
its really really helpful great for using at school i am usually the one that has no errors on my writing thanks to this!
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A User of Grammar and Spell Checker - LanguageTool
September 20, 2019
Really good app to help me with school work!
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A User of Grammar and Spell Checker - LanguageTool
September 20, 2019
helps me a lot to revise and proofread my essays!!!
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A User of Grammar and Spell Checker - LanguageTool
September 19, 2019
this such an amazing app that it is better than...GRAMMARLY.it is very useful it shows you your mistakes and gives you the corrections you need.Not just spelling but for grammar too
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A User of Grammar and Spell Checker - LanguageTool
September 19, 2019
Very useful, it shows you your mistakes and gives you the corrections you need,. Not for just spelling, but for grammar too.
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A User of Grammar and Spell Checker - LanguageTool
September 19, 2019
It is great at checking work and helps me all the time.
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A User of Grammar and Spell Checker - LanguageTool
September 19, 2019
A recommended plugin for translators
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