Nov 27 - Dec 1, 2025
React Advanced
London, UK & Online

React Advanced 2025

We will be diving deep

Full remote ticket included with Multipass.

Get ready for an annual deep dive into the latest trends in React and Web development. Learn from engineers behind the framework ecosystem and early adopters at the main React Conference in the UK.

The concept of the event is both about covering all you need to catch up on in the React ecosystem, combined with deep technical exploration of the latest architectural trends, new feature adoption, and efficient ways to solve complex problems.

Engage in discussion rooms, hallway track with experts, hands-on practical workshops, and tens of insightful talks. Engineers of any level are welcome but be prepared for hardcore.

Modern React Architecture
Nov 11, 15:00
Modern React Architecture
WorkshopPro
Brad Westfall
Brad Westfall
In this workshop we'll dive into the latest advancements in React and best practices for building modern React apps. We'll take a look at modern NextJS and React Router 7 Framework (aka Remix) along with React's new "React Server Components". We'll also talk about improving the data-fetching strategies of your SPAs along with options for migrating your SPA to modern React Router.
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Building Interactive Async UI with React 19 and Ariakit
Upcoming
Building Interactive Async UI with React 19 and Ariakit
Handling async operations in UI components can be tricky – flickering pending states, inefficient state updates, and unstable user experiences are common issues. Building accessible UI components presents additional challenges, as meeting accessibility requirements often requires extra effort, which can add complexity to the development process.In the context of the Next.js App Router, this session will demonstrate how React Server Components streamline data fetching, while other React 19 tools help manage mutations, loading states, and optimistic updates more effectively. We’ll combine these with Ariakit to simplify the process of building interactive, accessible UI components with less boilerplate. You’ll leave with practical strategies for managing async operations while ensuring a smooth, reliable user experience.
Node.js: More Threads Than You Think
Upcoming
Node.js: More Threads Than You Think
Node.js was announced in 2009 as a single-threaded JavaScript runtime. In 2018, it became multi-threaded, and no one noticed.What can worker_threads do? What are they useful for? What's the best way of communicating between two threads?
Build LLM agents in TypeScript with Mastra and Vercel AI SDK
Upcoming
Build LLM agents in TypeScript with Mastra and Vercel AI SDK
Workshop
Eric Burel
Eric Burel
LLMs are not just fancy search engines: they lay the ground for building autonomous and intelligent pieces of software, aka agents.
Companies are investing massively in generative AI infrastructures. To get their money's worth, they need developers that can make the best out of an LLM, and that could be you.
Discover the TypeScript stack for LLM-based development in this 3 hours workshop. Connect to your favorite model with the Vercel AI SDK and turn lines of code into AI agents with Mastra.ai.
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Final Fantasy IX in React: Fighting the Browser, One Frame at a Time
Upcoming
Final Fantasy IX in React: Fighting the Browser, One Frame at a Time
The original Final Fantasy IX was a masterclass in creative constraint – pushing the PlayStation’s hardware to its limits with tricks like pre-rendered backgrounds and low-res models. In this talk, Joe Hart recreates the magic in React, diving into WebGL, canvas positioning, and CSS hacks that should probably be illegal. It’s part love letter to retro games, part deep dive into browser APIs, and part performance art.
Automatic and Accessible Dynamic Themes With OKLCH Color Space
Upcoming
Automatic and Accessible Dynamic Themes With OKLCH Color Space
A few lines of code and UI theme will follow any colour that you want. Do you want it? Explore the OKLCH colour space for creating dynamic themes! This colour model ensures better a11y, predictable color transformations and supports the wide-gamut P3 colors. When it comes to changing colours by code, RGB, HSL, or LCH can lead to low contrast and poor accessibility; but OKLCH is specifically designed to avoid unexpected results with colour transformations. This talk will guide you on implementing dynamic themes using OKLCH in your React project along with Tailwind CSS, helping you automatically generate accessible palettes with vibrant, accurate colours.
Gamified 3D Solar System Explorer: An Interactive Learning Journey with Three.js
Upcoming
Gamified 3D Solar System Explorer: An Interactive Learning Journey with Three.js
Workshop
Houda Mouttalib
Houda Mouttalib
Craft immersive XR educational experiences through declarative 3D rendering with this advanced workshop. Leverage React Three Fiber's component-based architecture to build a gamified solar system explorer featuring dynamic orbital mechanics, interactive raycasting, and WebGL optimizations. Master performance-critical techniques including InstancedMesh implementation, reactive state management, and WebXR integration while creating engaging STEM visualizations. This workshop bridges theoretical physics concepts with practical front-end development, demonstrating how Three.js can transform educational content through spatial computing paradigms.Agenda:Introduction to React Three Fiber and Three.js: Setting up the project environmentBuilding the Solar System Scene: Creating planets, orbits, and space backgrounds with animations Interactivity and Gamification: Raycasting for object selection and interactionPerformance Optimization: Using InstancedMesh for efficient renderingWebXR Integration: Enabling AR/VR experiences in the browser
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