description LanguageTool Desktop App Overview
For users with high security or limited internet access, the dedicated desktop application version of LanguageTool is invaluable. It allows for thorough grammar and style checking entirely offline, ensuring that sensitive documents never need to be uploaded to a third-party cloud server. This privacy-first approach makes it a top choice for legal, governmental, or highly confidential industries where data sovereignty is a primary concern.
help LanguageTool Desktop App FAQ
Can the LanguageTool Desktop App really check documents offline?
LanguageTool's current help center says its Windows and macOS desktop apps can check writing without an internet connection. However, its Windows integration article asks users to keep a stable internet connection for some supported applications, so verify the exact offline mode before using confidential documents. [LanguageTool help center](https://help.languagetool.org/hc/en-us/articles/39254499343383-Where-can-I-access-the-LanguageTool-Writing-Assistant)
Which operating systems support the LanguageTool Desktop App?
The desktop app is available for Windows and macOS, and the Windows article specifies Windows 10 or Windows 11. LanguageTool's Notepad integration works only with Windows 11, while the iOS version is a separate mobile app. [LanguageTool Windows information](https://blog.languagetool.org/insights/post/product-windows-app/)
Can LanguageTool Desktop check Outlook, Notepad, and Word?
The Windows app supports Outlook and Windows 11 Notepad, which LanguageTool calls Editor. Microsoft Word uses a separate LanguageTool add-on rather than the same Windows integration. [LanguageTool Windows information](https://blog.languagetool.org/insights/post/product-windows-app/)
Does offline LanguageTool include every online feature?
Offline grammar checking should not be assumed to include cloud-based paraphrasing, account features, or every premium suggestion. If the document must never leave the computer, test the exact desktop feature with the network disabled before relying on it.
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