How do I Add the LanguageTool Add-on to my Browser?

Whether on social networks or on your e-mail platform—a large part of professional and private communication takes place in written form via an internet browser. If you provide error-free and appropriate language in your writing, you will appear more competent, serious and successful.

The writing assistant LanguageTool combines a classic spell checker with style suggestions and improvements for your general phrasing. This makes embarrassing mistakes or imprecise messages to your colleagues, friends, or customers definitely a thing of the past. The installation of the intelligent writing assistant for your favorite browser takes only a few minutes.

In short, an add-on—as the name suggests—is an additional tool for your browser that you can install when necessary. Once installed, the add-on can be enabled or disabled per page, depending on your needs. The method of setting up the LanguageTool add-on differs slightly depending on the browser.

How Do I Install the Add-on for Mozilla Firefox?

Installation link for Firefox

You can find LanguageTool for Firefox in the add-ons.

  • Visit the specific download link for this browser
  • Click on “Add to Firefox”
  • Automatic download and installation of the writing assistant
  • LT icon will appear in the upper-right corner (next to the search bar)
  • Visit a page with a multi-line text field and type something
  • Style, spelling, and grammar problems are underlined
  • Click on the overview of all errors in the LT dialog (circled red number)

LanguageTool’s browser add-on for Mozilla Firefoxv

Example 1: Correction on Mozilla Firefox

How Do I Install the Add-on for MS Edge?

Installation link for MS Edge

Find the download link in the Edge add-ons.

  • Visit the specific download link for this browser
  • Click on “Get”
  • Automatic download and installation of the writing assistant
  • LT icon will appear in the upper-right corner (next to the search bar)
  • Visit a page with a multi-line text field and type something
  • Style, spelling, and grammar problems are underlined
  • Click on the overview of all errors in the LT dialog (circled red number)

LanguageTool’s browser add-on for Edge

Example 2: Correction on MS Edge

How Do I Install the Add-on for Chrome?

Installation link on Chrome

LanguageTool is available in the Chrome Web Store.

  • Visit the specific download link for this browser
  • Click on “Add to Chrome”
  • Automatic download and installation of the writing assistant
  • Click on the puzzle icon next to the search bar
  • Pin the LT icon permanently to the top-right corner
  • Visit a page with a multi-line text field and type something
  • Style, spelling, and grammar problems are underlined
  • Click on the overview of all errors in the LT dialog (circled red number)

LanguageTool’s browser add-on for Google Chrome

Example 3: Correction on Google Chrome

How Do I Install the Add-on for Safari?

Installation link for Mac

You can refer to your Mac App Store for the LanguageTool browser add-on.

  • Visit the specific download link for this browser
  • Click on “Get”
  • Open the Safari browser
  • Click on “Safari” in the Mac menu bar and then “Preferences” (or command ⌘ + comma) to enter the preferences
  • Navigate to the “Extensions” tab
  • Check the box next to the LT icon
  • Confirm your selection in the dialog that pops up
  • LT icon is now located in the Safari toolbar to the left of the search bar
  • Visit a page with a multi-line text field and type something
  • Style, spelling, and grammar problems are underlined
  • Click on the overview of all errors in the LT dialog (circled red number)

LanguageTool’s browser add-on for Apple Mac

Example 4: Correction on Safari

The installation of the Safari add-on takes additional steps.

What Are the Options After Installing the Add-on?

After the automatic download, the writing assistant is already active. Click on the LT icon that has now newly appeared in your browser. There are several setting options:

Now you’re ready to go! It’s important to reload pages that are already open so that the tool can check your texts directly. Whenever you encounter multi-line text fields on the Internet (Gmail, Twitter, Facebook, etc.), you can see exactly where there’s still room for improvement.

LanguageTool’s color scheme

Just the spelling of add-on can get a bit tricky. But now imagine that you want to tell your friends or colleagues about LanguageTool, and you don’t really know whether you need to put a hyphen. Precisely then it would be handy to have a program at your side, which reliably and quickly checks your spelling on all internet pages, right?

Just click into the following field and check how LanguageTool works—are all words really spelled correctly?

You should also try the Mac App, the iOS version, or the Windows App for your device.

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Marvin Erdner

Writing is simply in his blood! After finishing high school, Marvin first traveled to South America before studying English and Spanish linguistics in Augsburg. After graduating, this native of northern Germany returned to the north—this time not to Hanover, but to Hamburg. When he's not questioning German spelling rules, he's probably on Netflix, using Babbel, or traveling abroad. But his greatest passion is writing. Was that mentioned already?