Glarity is a browser extension that summarizes YouTube videos and web pages and translates pages in place. It produces cross-language summaries of videos, Google search results, PDFs, emails and articles, with timestamped highlights for videos. Translation covers full pages, selected text, PDF selections and images. Extra features include an AI reader for webpages and PDFs, a writing assistant for articles and emails, and an AI chat that offers more than 10 models and a 200k context window. It is available for Chrome, Edge, Safari, Firefox and Opera.
Students and researchers use it to digest long videos and papers quickly, and professionals rely on it to skim lengthy reports or email threads before replying. People who read content in a second language gain side-by-side translation without leaving the page. Writers and marketers draft articles, emails and social media responses with the writing assistant, and anyone who watches tutorials or lectures can pull out the key points and create FAQs from a video. More than 1,000,000 users have installed it.
Typical uses include summarizing a long YouTube lecture into chapters, translating a foreign news article while reading it, asking questions about a PDF through chat, and generating subtitles that can be translated. A quick reply button in Gmail helps with email writing, and custom prompts let a user extract specific details from any page. Summaries are available in over a dozen languages, so a Spanish video can be summarized in English. Glarity also supports Twitter summaries, web content Q&A and voice translation, and it is open source.
