A web highlighter is a virtual tool that allows users to underline, comment on, and save excerpts of text found on web pages or in digital files. It is also known as a “web highlighter” and may be referred to by various terms such as online highlighter, web annotation tool, online text marker, digital highlighter, or web note-taking tool. This application allows users to interact with online content, highlighting key information, adding personalized notes, and saving these changes for later reference.