LanguageTool + TeXstudio + VSCode

Table of Contents

Introduction

LanguageTool is a proofreading open-source software written in Java that allows you to integrate grammar, and spell checking on several text editors. I use it mainly with TeXstudio for LaTex documents but when I tried to use in parallel with VSCode I found some problems.

The objective of this brief tutorial is to configure TeXstudio and VSCode to work with LanguageTool in parallel.

Download and configure LanguageTool

• Download LanguageTool desktop version for offline use.
• Unzip the folder.
• Run languagetool.jar
• In TexChecking > Options enable Run as server on port 8081

Configure TeXstudio

• Go to Options > Configure TeXstudio > Language Checking
• Configure Server URL, LT Path, and LT Arguments as follows.
• Maybe you'll find that some users add --allow-origin "*" to LT Arguments. It's not necessary for TeXstudio because --allow-origin "*" is used to serve from the browser add-on, see official documentation.

Check LanguageTool is activated on TeXstudio

• Go to Help > Check LanguageTool. The LT Report.txt will be opened showing LT current status: working.

Download and configure the LanguageTool Linter VSCode extension

• Download LanguageTool Linter.
• Go to the extesion configuration and set the Class Path and Jar File options as follows,

Check LanguageTool is activated on VSCode

• Open the OUTPUT window and select LanguageTool Linter. You will see the following.
• Although I mentioned not to use --allow-origin "*", we use on VSCode to force LanguageTool to open another port because 8081 is already used by TeXstudio
• A warning message will appear at the bottom to change it the default setting. I tried the suggestion but didn't work for me.

Test the parallel working on VSCode and TeXstudio

• TeXstudio
  
• VSCode
  

Done! I hope it works for you too.