Upcoming London Tech & Web Design Events 2025–2026
London remains one of the leading cities in Europe for technology, design, and innovation. Between late 2025 and 2026, the city will host a range of web design and development events, from specialist JavaScript conferences to large international tech festivals.
This guide highlights the key upcoming conferences, workshops, and community meetups, with practical details to help you decide which events are worth attending.
Table of Contents
Web Design & Development Events in 2025
React Advanced London 2025
📅 28 November & 1 December 2025
📍 Hybrid event – London venue + Online access
Overview:
React Advanced London is a specialist conference dedicated to React and modern front-end engineering. The programme features talks from React core contributors, experienced engineers, and framework specialists. Topics usually include React, TypeScript, Next.js, and performance optimisation — making it highly relevant for developers building web applications, SaaS platforms, and large-scale digital products.
Why attend:
- Learn directly from industry experts and framework contributors.
- Gain practical strategies for scaling and improving web applications.
- Stay updated with the latest React ecosystem developments.
- Network with front-end developers, product teams, and tech leaders.
Venue & transport:
The London venue is centrally located and accessible by Tube via the Victoria, District, and Circle lines. For attendees outside the UK, virtual tickets provide full remote access to sessions.
HalfStack London 2025
📅 12 November 2025
📍 93 Feet East, Shoreditch, London
Overview:
HalfStack London is a community-focused JavaScript conference known for its creative and informal style. Instead of purely technical lectures, it highlights innovative uses of JavaScript, live demos, and experimental projects. The event is smaller than many corporate conferences, which makes it more personal and interactive.
Why attend:
- Experience a relaxed, community-driven environment.
- See creative applications of JavaScript beyond standard frameworks.
- Connect with developers, designers, and tech enthusiasts in an informal setting.
- Enjoy unique extras such as live coding sessions and post-event entertainment.
Venue & transport:
93 Feet East is located in Shoreditch, a lively part of East London with plenty of restaurants and bars nearby. The venue is well connected by public transport:
- Overground: Shoreditch High Street Station (5 minutes’ walk).
- Underground & Rail: Liverpool Street Station (10 minutes’ walk).
Web Design & Development Events in 2026
NDC London 2026
📅 26–30 January 2026
📍 QEII Centre, Westminster | Official event site
Overview:
NDC London is one of the largest software developer conferences in Europe. The event runs for five days, beginning with two days of hands-on workshops, followed by a three-day multi-track conference. Sessions typically cover a wide range of topics, including .NET, JavaScript, DevOps, software security, and modern front-end frameworks.
Why attend:
- Gain access to deep technical talks from internationally recognised speakers.
- Choose from multiple tracks tailored to your interests and specialisation.
- Take part in workshops that provide practical, hands-on learning.
- Network with thousands of developers, engineers, and technology leaders.
Venue & transport:
The QEII Centre is located in the heart of Westminster, close to major landmarks such as Big Ben and Westminster Abbey. It’s well connected by public transport:
- Westminster Station: Jubilee, Circle, District lines – 5 minutes’ walk.
- St. James’s Park Station: District, Circle lines – 7 minutes’ walk.
CityJS London 2026
📅 15–17 April 2026
📍 Kensington Town Hall, London | Official event site
Overview:
CityJS London is one of the most established JavaScript conferences in Europe. The 2026 edition is especially significant as it marks 30 years of JavaScript. The event combines workshops, a full day of conference talks, and community-led after-parties, making it a key date in the calendar for developers working with modern frameworks, Node.js, and full-stack applications.
Why attend:
- Celebrate the 30th anniversary of JavaScript with an international community.
- Attend hands-on workshops that cover the latest tools and frameworks.
- Learn from industry experts on topics spanning front-end, back-end, and architecture.
- Build connections with developers, product teams, and open-source contributors.
Venue & transport:
The event takes place at Kensington Town Hall, a central London venue surrounded by hotels, cafes, and restaurants. It’s easy to reach by public transport:
- Kensington High Street Station: District line – 5 minutes’ walk.
- Bus routes: serving Kensington High Street stop directly outside the venue.
Devoxx UK 2026
📅 6–7 May 2026
📍 London (venue TBA) | Official event site
Overview:
Devoxx UK is one of the largest annual developer conferences in the UK, attracting more than 1,000 attendees. The conference runs across multiple tracks, covering topics such as Java, cloud-native development, security, progressive web applications, and modern front-end architecture. It’s designed for developers, engineers, and architects looking to balance deep technical knowledge with practical solutions to current industry challenges.
Why attend:
- Access multi-track sessions tailored to a wide range of development areas.
- Hear from experienced speakers and industry leaders across the software ecosystem.
- Explore cutting-edge practices in cloud, Java, and web technologies.
- Network with a large community of developers, tech companies, and open-source contributors.
Venue & transport:
While the 2026 venue is still to be confirmed, Devoxx UK has historically taken place at the Business Design Centre in Islington. If hosted there, it is easily reached via:
- Angel Underground Station: Northern line – 5 minutes’ walk.
- Bus routes: serving Upper Street, Islington.
International JavaScript Conference (iJS) London 2026
International JavaScript Conference (iJS) London 2026
📅 11–15 May 2026
📍 Central London (venue TBA) + Online access
Overview:
The International JavaScript Conference (iJS) London 2026 is a hybrid event dedicated to the latest developments in JavaScript and modern web engineering. Running over several days, the conference features workshops and multi-track sessions covering Angular, React, Node.js, performance optimisation, and emerging web standards. It’s designed for developers who want practical strategies they can implement immediately in their projects.
Why attend:
- Explore the newest tools, frameworks, and best practices in the JS ecosystem.
- Attend workshops for hands-on training with expert instructors.
- Gain insights into both front-end and full-stack development approaches.
- Choose between in-person networking in London or flexible online participation.
Venue & transport:
The 2026 London venue is still to be confirmed, but will be centrally located with strong transport connections. Expect easy access by:
- London Underground: Multiple central line stations within walking distance.
- National Rail: Nearby mainline connections make it accessible from outside London.
- Virtual option: Full online access for remote participants worldwide.
LeadDev London 2026
📅 2–3 June 2026
📍 London (venue TBA) | Official event site
Overview:
LeadDev London is a two-day conference designed for engineering managers, tech leads, and senior developers transitioning into leadership roles. Sessions focus on leadership skills, scaling teams effectively, technical decision-making, and improving developer experience. The event attracts a mix of engineering leaders from start-ups, scale-ups, and global tech companies.
Why attend:
- Learn strategies for managing and scaling high-performing engineering teams.
- Gain insights into leadership, communication, and decision-making in technical environments.
- Connect with peers in engineering leadership roles across different industries.
- Access practical case studies that go beyond theory and highlight real-world challenges.
Venue & transport:
While the 2026 venue is yet to be confirmed, LeadDev has previously been hosted at the Barbican Centre in London. If held there again, it is well connected by public transport:
- Barbican Station: Circle, Hammersmith & City, Metropolitan lines – 3 minutes’ walk.
- Moorgate and Liverpool Street stations: within 10 minutes’ walk, offering Underground and National Rail connections.
London Tech Week 2026
📅 8–12 June 2026
📍 Olympia London + city-wide venues | Official event site
Overview:
London Tech Week is one of the largest technology festivals in Europe, bringing together global leaders, innovators, and start-ups. The 2026 edition will feature AI, digital product development, design innovation, sustainability, and start-up growth. In addition to the main exhibition at Olympia London, the festival includes dozens of fringe events across the city, ranging from panel discussions and product launches to networking evenings.
Why attend:
- Connect with investors, entrepreneurs, and tech leaders from around the world.
- Explore exhibitions showcasing the latest in AI, design, and digital technology.
- Attend specialist talks and workshops tailored to business growth and innovation.
- Take advantage of city-wide fringe events for additional networking opportunities.
Venue & transport:
The main hub is Olympia London, directly served by:
- Kensington (Olympia) Overground Station: directly connected to the venue.
- District Line (London Underground): stopping at Kensington (Olympia).
- Shuttle buses and taxis: available throughout the week for ease of travel.
Fringe events are spread across London, often located near major transport hubs for convenience.
QCon London 2026
📅 16–19 March 2026
📍 QEII Centre, Westminster | Official event site
Overview:
QCon London is a senior-level software development conference designed for software architects, senior engineers, and technical decision-makers. The 2026 edition will feature multiple tracks focused on scalability, architecture, developer experience, front-end performance, and emerging technologies. The format includes workshops, in-depth technical sessions, and networking opportunities with industry leaders.
Why attend:
- Gain insights into real-world architectures used at scale.
- Explore solutions for performance, resilience, and scalability.
- Learn from senior practitioners rather than vendor pitches.
- Network with architects, engineering managers, and senior developers.
Venue & transport:
The QEII Centre is centrally located in Westminster, close to iconic London landmarks such as Big Ben, Westminster Abbey, and St. James’s Park. It is well connected by public transport:
- Westminster Station: Jubilee, District, Circle lines – 5 minutes’ walk.
- St. James’s Park Station: District, Circle lines – 7 minutes’ walk.
- Bus routes: Numerous services run via Parliament Square and Victoria Street.
ContainerDays London 2026 (with MCPconf)
📅 11–12 February 2026
📍 London (venue TBA) | Official event site
Overview:
ContainerDays London, co-located with MCPconf, is focused on cloud-native technologies, Kubernetes, container security, and AI/ML platforms. The conference brings together developers, DevOps engineers, architects, and platform teams to explore scalable infrastructure, CI/CD pipelines, and modern application delivery practices.
Why attend:
- Learn the latest approaches to Kubernetes, containers, and microservices.
- Gain insights into cloud-native security, observability, and automation.
- Connect with practitioners solving real-world scaling challenges.
- Explore how AI/ML is being integrated into modern infrastructure.
Venue & transport:
The exact 2026 London venue is yet to be confirmed, but it will be centrally located and accessible by:
- London Underground: multiple central stations nearby depending on venue.
- National Rail: easy access from mainline stations such as Waterloo, Victoria, or King’s Cross.
- Local transport: bus and taxi connections for onward travel.
Why Attend These Events?
- Sharpen your skills
Learn the latest techniques and best practices directly from experienced designers, developers, and industry innovators. - Expand your network
Meet like-minded professionals, potential collaborators, and future clients in an environment built for knowledge sharing. - Stay future-ready
Prepare for upcoming shifts in frameworks, UX trends, AI integration, and cloud-native development so your work stays relevant. - Boost your professional profile
Whether you’re attending, speaking, or sharing your insights online, participation in these events helps establish credibility and authority for you and your brand.
Final Word
London continues to be one of the most influential hubs in Europe for web design and software development. The events scheduled for 2025–2026 offer valuable opportunities to learn from experts, discover new tools and practices, and connect with professionals across the industry.
Whether you’re a front-end developer, UX designer, engineering manager, or agency owner, attending these conferences and festivals can help you stay competitive, build meaningful connections, and prepare for the future of digital design and development.
🔗 Pro resources:
FAQs
Q: What are the top web design and development events in London for 2025–2026?
A: Some of the leading events include React Advanced London 2025, HalfStack London 2025, NDC London 2026, CityJS London 2026, Devoxx UK 2026, International JavaScript Conference London 2026, LeadDev London 2026, London Tech Week 2026, QCon London 2026, and ContainerDays London 2026.
Q: Who should attend these London tech and design events?
A: These events are ideal for web designers, front-end and full-stack developers, UX professionals, engineering managers, agency owners, start-up founders, and anyone looking to learn, network, or stay updated with the latest digital trends.
Q: Are these conferences beginner-friendly?
A: Yes. While many sessions cater to experienced developers and leaders, most conferences also offer beginner-friendly workshops, talks, and networking opportunities for those new to web design or development.
Q: How can I travel to these events in London?
A: Most venues, such as the QEII Centre, Olympia London, Kensington Town Hall, and the Business Design Centre, are centrally located and accessible by Underground, Overground, National Rail, and bus services. Many events also offer online access for remote attendees.
Q: When should I buy tickets for London tech events?
A: Tickets usually go on sale six to eight months before each event. Early-bird passes are often available at discounted rates, so booking in advance is recommended.
Q: Can I attend London Tech Week 2026 without a conference pass?
A: Yes. London Tech Week includes both ticketed events and free city-wide fringe activities, making it accessible whether you’re attending as a delegate, exhibitor, or simply exploring the festival atmosphere.
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