Glarity is a browser extension written in TypeScript that integrates ChatGPT-powered summarization capabilities directly into web browsing experiences. Available as both a Chrome extension and Firefox add-on, the tool displays AI-generated summaries alongside search results, videos, and other web content, enabling users to quickly extract key information without leaving their current page.
The extension supports an extensive range of websites beyond its core Google and YouTube functionality. Users can access summaries on Yahoo! Japan News, PubMed, PMC, NewsPicks, GitHub, Nikkei, Bing, Google Patents, Bilibili, Twitter, and virtually any webpage. This broad compatibility makes it a versatile tool for researchers, students, and professionals who regularly consume content across multiple platforms. The project also extends to Safari on both iOS and macOS, expanding its reach beyond traditional desktop browsers.
Feature-rich functionality distinguishes Glarity from simpler summarization tools. The extension offers side-by-side translation capabilities with mirror translation and immersive translate options, Gmail quick reply assistance, and Web Content Q&A functionality. For YouTube specifically, it provides video transcripts, summaries, and identification of key moments. Users can choose between multiple backend options including the official OpenAI API with GPT-3.5-turbo and text-davinci-003 models, ChatGPT Plus integration, or Glarity's own AI model. The interface supports markdown rendering, code highlighting, dark mode, and multiple language options, with the ability to copy summaries to clipboard and provide feedback for model improvement.
The repository demonstrates active maintenance and community engagement. GitGenius tracking shows a median issue and pull request response latency of 372.5 hours across 37 tracked items, indicating reasonably responsive project management. The most active contributor tracked is givebest with 32 recorded events, followed by justincnn and wangzhiming1999 with 3 events each. The project maintains connections with major open-source ecosystems, with GitGenius identifying overlapping contributors linking to microsoft/vscode, microsoft/typescript, and rust-lang/rust repositories.
Installation is straightforward through official app stores or manual installation from source. Users can add the extension directly from the Chrome Web Store or Mozilla Add-on Store, or build from source by cloning the repository, installing dependencies with npm, and running the build command. Pre-built packages for Chromium and Firefox are available in the packages directory. The project includes troubleshooting documentation, such as specific instructions for Brave browser users who need to disable fingerprinting prevention settings.
Glarity originated as a fork of wong2/chatgpt-google-extension and incorporates code from qunash/chatgpt-advanced and the YouTube Summary with ChatGPT project, acknowledging its collaborative roots within the open-source community. Released under the GPL-3.0 license, the project maintains transparency about its dependencies and inspirations. The extension is sponsored by Felo AI and maintains an active blog documenting features and user guides at glarity.app, its official homepage.
