Feature request: Integrate languagetool

[throwException]

Integrate LanguageTool, a free and open-source grammar, style, and spell checker, into the toot composition interface.

The LanguageTool server URI should be configurable to enable using on-machine or on-premise installations.

[h3poteto]

I don't know the tool. Is it popular?
If I use LanguageTool from my machine, do I need to launch it on my local machine? Or is there a public server I can use?

[throwException]

I don't know the tool. Is it popular?

From all public appearances, it's quite popular.

If I use LanguageTool from my machine, do I need to launch it on my local machine? Or is there a public server I can use?

Yes, there are public servers run by the project itself. They are default configured in the browser, mail client and libreoffice plugins.

[tassoman]

I'm not for giving user's data away without their consent. Using 3rd parties services must be explained before.
Users should have ability to disable this kind of features.
For example, writing a DM then giving it away to 3rd parties servers, is unfair.