LanguageTool

LanguageTool is an AI-based grammar checker.

Web application · by Jaume Ortolà, Daniel Naber · languagetool.org

Open LanguageTool in AirStack

What LanguageTool’s own pages say

What it says it doesLanguageTool is an AI-based grammar checker. languagetool.org
PlatformsWindows, iOS, macOS languagetool.org
IntegrationsChrome, Edge, Firefox, Opera languagetool.org
ComplianceGDPR languagetool.org
Free planYes languagetool.org
PlansPremium languagetool.org
Customers (their claim)2000+ organizations trust our AI-based writing tools languagetool.org

Each value is a quote AirStack found on the product’s own pages, read 2026-11-04. A missing field means AirStack has not found it on its pages.