Excellent Utilities: LanguageTool – style and grammar checker for 30+ languages

LanguageTool offers a variety of different ways to access its functionality. There’s a cross-platform Java desktop application for offline use. You can also use its grammar, style and spell checker in a web browser with both Firefox and Chrome add-ons. There’s also support for LanguageTool in Google Docs, LibreOffice, and community support has added other applications including Emacs, LyX, and vim.