CityJS London 2026

AI-Powered. JavaScript-Driven..

Get latest trends and insights from expert-led talks and workshops,

plus valuable networking, free meetups, swag, and session recordings.

LocationKensington Town Hall, LondonDate15-17 April 2026
Get free-event priority
3
days
In Person
35
speakers
JavaScript topics
6+
workshops
Pro and Free
Conference background

About the event

This year we celebrate the 30 years of JavaScript with a Three days of Workshops, Meet-up's , followed by a 1 day Javascript Conference.

Day 1
time15 April 19:00 - 21:00

FREE Meetup

Day 1
time15 Apr 09:00 - 18:00

Professional Workshops

Day 2
time16 Apr 09:00 - 18:00

Professional & Free Workshops

Day 3
time17 Apr 09:00 - 17:00

Full Conference Day

Tickets

Our prices are community prices. Get your ticket whilst our prices are low.

All tickets include:

  • red tickTicket for Main Conference 17 April
  • red tickPriority for Free Meetup
  • red tickPriority for FREE Workshops
  • red tick30 Speakers
  • red tickBreakfast
  • red tickLunch
  • red tickCoffee and Snacks
  • red tickConference Tshirt
Check now our latest offers

Talks

Find out more about our amazing speakers

Tejas Kumar

Tejas Kumar

Director, Developer Relations @ IBM

The New UX

ContejasAIDrivenUXVoiceMultimodalInterfaces
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Matteo Collina

Matteo Collina

Platformatic Co-Founder & CTO- Node.js TSC member

The state of NodeJS

nodejs backend
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 Douglas Crockford

Douglas Crockford

JSON Creator

JavaScript: The Best Part

javascript bestpart
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Anna Henningsen

Anna Henningsen

Staff Engineer @ MongoDB

Effective Data Modeling for Document Databases

Nosql Mongodb Datamodeling
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Rich Harris
Rich Harris

Rich Harris

Vercel

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Sara Vieira

Sara Vieira

Senior Frontend Developer

Main stage MC

25-04-2025 - 09:30Royal Geographical Society, 1 Kensington Gore, South Kensington, London SW7 2AR
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Kitze

Kitze

Sizzy

From Vibe Coding to Vibe Engineering

AI-Assisted DevelopmentVibeCodingFuture of Frontend
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Alicia Spivak

Alicia Spivak

Google

How to choose the right AI model for your project

Generative AI Model SelectionAI Evaluation & BenchmarkingProduction AI Architecture
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Luca Mezzalira

Luca Mezzalira

Software Architect @AWS

The Dark Side of Micro-Frontends

Micro-frontendsArchitectureAnti-patterns
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David Whitney

David Whitney

Director of Architecture at NewDay

The Future of the AI Bubble (Panel)

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David Benson

David Benson

Senior / Lead Web Developer

The Future of the AI Bubble (Panel)

Ethics of Emerging TechnologyAI Infrastructure & RiskGenAI
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Ruben Casas

Ruben Casas

Staff Engineer @ Postman

React Beyond Components: The Rise of Generative UI

ReactGenerativeUILargeLanguageModels
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Alvin Bryan

Alvin Bryan

Developer Advocate at Yoto

A personal AI agent, off cloud, for $100

AILargeLanguageModelsPrivacy
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Alexander Cheprasov

Alexander Cheprasov

Senior Software Engineer, Valstro (UK) Ltd

JSBT: A Binary Serialization Format for Real JavaScript Object Graphs

JavaScriptPerformanceDataSerialization
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Aprajita Verma

Aprajita Verma

Mycom, Frontend Architect

WebAssembly + JavaScript: Partners, Not Competitors and Why now is the right time to pay attention

WebAssemblyHigh-Performance WebNext-Gen Browser Applications
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Daniel Roe

Daniel Roe

Framework Lead @ Nuxt

Beyond the Framework

Web ArchitectureFrontend ToolingSustainable Software
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Eduardo Aparicio Cardenes

Eduardo Aparicio Cardenes

Senior Software Engineer at Happening

From Isolation to Acceleration: Building the fastest payment platform on an iFrame

Web PerformanceArchitectureVue.js
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Scott Spence

Scott Spence

XtendOps

Pigeon-Driven Development

AIInPracticeSafeAndReliableAISvelte
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Zbyszek Tenerowicz

Zbyszek Tenerowicz

LavaMoar R&D team Lead at Consensys

Effortlessly defend your dev machine from North Koreans on NPM

SecurityNPMPackages
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Nkechi Anyanwu

Nkechi Anyanwu

Vouchsafe

From Executor to Orchestrator: Building in the Age of AI Agents

AI OrchestrationAI-Assisted DevelopmentBuilder Mindset
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Carly Richmond

Carly Richmond

Senior Developer Advocate at Elastic

OTel You It's Not Just for Backend!

Frontend ObservabilityOpenTelemetryWeb Performance Monitoring
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Steven Goodwin

Steven Goodwin

Unemployable computer geek

Code Golf - Getting A Hole-in-One-(Liner)

JavaScript InternalsCode GolfingLanguage Quirks
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Ananya Kittane Yogananda

Ananya Kittane Yogananda

Senior Engineer - Web standards technologist, Samsung R&D Institute UK

Off-the-main-thread : Building fast, smooth and future-proof web apps.

Main ThreadWeb PerformanceJavaScript Optimization
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Workshops

Choose between paid and free workshops led by industry experts to deepen your knowledge and skills.

Its all about the memories

Our community conference has been a journey of unforgettable moments and connections.

FAQs

For any questions you can always email us at at [email protected]

Dont miss out!! Find out all the AI and JS trends!