Explore the transformative power of Thymeleaf in Spring web applications through this comprehensive conference talk. Delve into core Thymeleaf concepts and their application in Spring MVC and Spring Boot ecosystems. Discover how this modern Java template engine bridges the gap between web design and software development, offering an enhanced developer experience. Learn about HTML5 prototyping, page composition, markup selectors, and fragment parameters. Uncover Thymeleaf's extensibility and view layer testing capabilities. Gain insights into Thymeleaf 3.0's new architecture, improved performance, full HTML5 support, enhanced inlining, JavaScript natural templates, fragment expressions, decoupled templates, and reactive-friendly operation modes. Master the art of creating efficient and visually appealing user interfaces by leveraging Thymeleaf's server-side templating prowess in conjunction with client-side frameworks.