# Grammar Checker

### Grammar Checker

**Grammar checker** is a Datasaur extension in the token-based project which corrects grammatical errors on the dataset.

<figure><img src="https://448889121-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MbjY0HseEqu7LtYAt4d%2Fuploads%2Fgit-blob-a3c4d42755de20ee7d32ef854a3e53e9512cbe1d%2FExtension%20-%20Grammar%20checker%20-%20highlight%20-%20empty.png?alt=media" alt=""><figcaption></figcaption></figure>

#### How to Use Grammar Checker:

1. Enable **Grammar checker** extension from the **Manage extensions** dialog
2. Select a service provider
3. Click **Check document** to enable the checker
4. Click **Clear results** to clear the grammar mistake results

#### How It Works:

* The **Grammar checker** extension will check the entire document
* It will show the list of grammar mistakes on the **Grammar checker** extension and underline the mistakes in red on the token editor

<figure><img src="https://448889121-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MbjY0HseEqu7LtYAt4d%2Fuploads%2Fgit-blob-456a161a3275071263e42a7343d1964a0f1da24a%2FExtension%20-%20Grammar%20checker%20-%20red%20underline.png?alt=media" alt=""><figcaption><p>The grammatically mistaken text will be underlined in red</p></figcaption></figure>

<figure><img src="https://448889121-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MbjY0HseEqu7LtYAt4d%2Fuploads%2Fgit-blob-7a298ec2454168c4c868ebbba3678444dd3a90d6%2FExtension%20-%20Grammar%20checker%20-%20highlight%20-%20results.png?alt=media" alt=""><figcaption><p>The list of grammar mistakes after enabling the Grammar Checker</p></figcaption></figure>

* Clicking the item on the list of grammar mistakes will jump to the row where it refers to
* When the **Grammar checker** is enabled, it will always recheck the line where text modification happens

> About LanguageTool:
>
> [LanguageTool](https://languagetool.org/) is a free online proofreading service for English, Spanish, and 20 otherf languages. Instantly check your text for grammar and style mistakes.
>
> * We use LanguageTool open-source
> * [Here](https://community.languagetool.org/rule/list?lang=en) is the link to the LanguageTool rules