Highlight This is a free Chrome extension designed to enhance web browsing by automatically finding and highlighting specified words and phrases. Users can create customized lists and organize their keywords into groups, allowing for a tailored experience. The extension supports Regular Expressions for advanced search patterns and ensures data privacy by storing all information locally. Additionally, it refreshes highlights automatically when pages are reloaded or content changes, maintaining the relevance of highlighted terms.

The extension offers an unlimited version with advanced features and allows synchronization of keyword lists across different browsers. Users benefit from a user-friendly interface that supports color-coded lists, site-specific highlighting preferences, and the ability to import/export settings. With its versatile capabilities, Highlight This is an excellent tool for research, studying, or emphasizing key information on web pages.