Is Grammar and Spell Checker - LanguageTool safe?
LanguageTool transmits typed text and webmail recipient details to its own API servers during grammar checks.
When the user enables remote checking, the extension sends the full text of any editable field—including email drafts—to api.languagetool.org on every keystroke. For webmail sites such as Gmail, Yahoo Mail, and Yandex Mail it also collects the recipient's email address and full name from the compose window and includes them in each API request. Remote checking is off by default and requires explicit consent on first install.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
Who publishes itLanguageTooler GmbH - no other listings under this identity, 6 shared hostnames
LanguageTooler GmbH - no other listings under this identity, 6 shared hostnames
What this publisher told the store about itself, and the other listings that told it the same thing.
Shared hosts - 6 hostnames
Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
What it can do
Permissions this extension asks for, as declared in version 11.3.1. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.
Act on the current tab, but only after you click the extension
activeTab
Store data in your browser
storage
Add items to the right-click menu
contextMenus
Run its own code inside the pages you visit
scripting
Schedule its own background tasks
alarms
Where it sends data
Destinations our analysis observed Grammar and Spell Checker - LanguageTool contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- api.languagetool.org
Grammar and Spell Checker - LanguageTool sends data to api.languagetool.org. 3 other extensions we have analyzed send data here.
- api-fallback.languagetool.org
Grammar and Spell Checker - LanguageTool sends data to api-fallback.languagetool.org. No other extension we have analyzed sends data here.