LanguageTool

LanguageTool is an AI-based grammar checker covering 30+ languages, offering a free tier and premium with unlimited paraphrasing. It checks grammar, spelling, and style, and provides a paraphrasing tool to rephrase sentences. The browser add-on works on Chrome, Firefox, Edge, Safari, and Opera, and integrates with email clients and office suites. Premium includes advanced suggestions, picky mode, and a personal dictionary. It suits writers, professionals, and non-native speakers needing multilingual writing assistance.