Glarity is an open-source extension that leverages ChatGPT's capabilities to generate instant summaries of content from YouTube videos, Google searches, and any webpage. Its cross-language summarization feature allows users to understand and translate content easily, assisting in studies, research, or casual browsing. Additionally, Glarity can handle various formats, including PDFs and emails, enhancing its versatility. The extension is ideal for anyone looking to quickly grasp the essence of lengthy documents or video presentations without sifting through extensive texts.