LookUp is a versatile browser add-on developed by Jeremie Patonnier. This free Chrome extension allows users to create rules to search for specific text content or HTML nodes within web pages. With LookUp, users can easily check the quality of their HTML structure, search for specific citations, or even track mentions as a community manager.

LookUp is a valuable tool for web developers who want to ensure the quality of their HTML structure. By creating rules, they can easily identify any issues or inconsistencies in the code, making it easier to maintain and optimize their websites.

Journalists and students can also benefit from LookUp as they can quickly search for specific citations within articles or research papers. This saves them time and effort, especially when working on extensive projects.

Community managers who need to track mentions of their brand or organization can use LookUp to easily search for specific keywords or phrases on various web pages. This helps them stay updated on what people are saying and allows them to respond promptly.

Overall, LookUp is a powerful and user-friendly browser add-on that offers a range of applications. Whether you're a web developer, journalist, student, or community manager, LookUp provides a convenient way to search for text content or HTML nodes within web pages.