Glasp Web Highlighter is a free extension that enables users to highlight text on web pages and PDF documents directly within their browsers. This tool not only provides various color options for highlighting but also allows users to collect and organize their highlighted content into manageable notes. It supports exporting highlights to other note-taking applications, facilitating easier study and research management. Glasp's detailed features aim to improve productivity and information retention for students, researchers, and anyone looking to streamline their online reading process.