Traditionally, AI models have been trained and deployed in high-performance or cloud environments, often raising concerns about data privacy and latency. However, with the rise of powerful dedicated AI processors and hardware acceleration technologies, a new era of edge computing has emerged, enabling AI to run directly in the web browser. In this presentation, we'll discuss the advantages and limitations of client-side versus server-side AI, helping you make informed decisions for your projects. Tailored for web developers eager to harness client-side AI, we'll explore how to create smarter, more responsive applications without data leaving users' devices. We'll delve into the latest on-device AI technologies, including Chrome's built-in AI APIs, Transformers.js, WebLLM, and Ollama. Join us to explore the future of web development, where AI is not just a backend feature but an integral part of the user experience right in the browser.