As web developers, we are constantly striving to provide our users with the best possible browsing experience. Regardless of their device, our aim is to provide them with resilient, performant websites that just work. Imagine if you could take this to the next level and provide your users with a super fast website with a similar experience to native applications. This is where Service Workers come in. They are a promising game changer that provides developers with powerful features such as offline browsing, periodic background syncs, and push notifications to name just a few! This talk will dive into Progressive apps and showcase some of the features that are available for developers to start using today. Topics include: The basics of Service Workers Eliminating third-party single points of failure Supercharging your caching Implement offline browsing Push notifications on the web Background Sync How to debug your Service Worker and much more! In this talk, we will run through working a few working examples and explore the ins and outs of Progressive. This talk is aimed at all web developers regardless of skill level - there is something for everyone!