Cosmos by Polarity Lab is a Chrome extension designed to enhance your personal knowledge management by integrating your browser history into a visual graph. This tool filters out irrelevant navigational data and only retains meaningful pages from your browsing history. It operates on a straightforward premise: your reading material becomes an organized graph for easy reference. Key features include hourly background synchronization, local filtering of unnecessary data, and a simple setup process that ensures your graph reflects your actual reading habits without cluttering it with irrelevant entries.

This extension prioritizes user privacy by sending minimal data to its servers, including only the URL, title, hostname, last visit timestamp, and visit count. By filtering out noise such as search results and untitled tabs, Cosmos ensures that your knowledge graph is both accurate and useful. The installation process is user-friendly, requiring just the minting of an MCP key and pasting it into the extension's options. With its focus on efficiency and privacy, Cosmos by Polarity Lab is a valuable tool for anyone looking to better manage their digital reading.