Powerful generative AI features are quickly becoming a baseline in modern development. Potential blockers include privacy concerns, the need for a stable connection, and the costs associated with using or hosting models. However, we can now leverage generative AI directly in the browser on the user's device using emerging Web APIs like WebNN, combined with higher-level frameworks, for a better developer experience. In my session, I’ll discuss the current state of in-browser ML and AI features, compare the main players, and show you how to start building an offline-ready, future-proof, standards-based web application.

Let's be honest, nowadays most of us see an error, copy it into ChatGPT, and hope for the best. I've done it. You've done it. We've all wasted 30 minutes going back and forth with AI when our browser could've shown us the answer in 2 minutes.

This talk is about remembering that our browsers have incredible debugging tools we've forgotten how to use. Through live demos of real bugs, I'll show you how breakpoints, call stacks, and the network tab can solve problems maybe faster than any AI assistant.

You'll learn:

Performance advice tells us to reduce bundle size, minimize re-renders, and optimize everything to the extreme. But do we really need to? Is there anything else we can explore to make our apps look and feel faster—and if we’re lucky, actually be faster?

In this talk, we will review some conventional wisdom and explore techniques beyond it, like different UX strategies, overfetching, and modern Web APIs. We’ll even ask an unexpected question: Can SEO and LSO (LLM Search Optimisation) help with performance?

How many times did we read about JavaScript being a bad language, JavaScript being on its way out and that technology X would kill it. In this talk, we will take a look at the lessons learnt from attempts at killing JavaScript. We will start as early as the late 90s where the battle for web-domination was still open. Then we will travel through time to understand the current state of an hypothetical javascript-less web platform.