Top Developer Conferences in Europe 2025
| Event | Description | Date – Location |
|---|---|---|
| BASTA! Spring | BASTA! Spring is the premier conference for .NET developers, offering in-depth sessions on C#, cloud, and software architecture. Attendees can connect with experts and explore new tools and techniques for the .NET ecosystem. Twitter / LinkedIn / Facebook Speakers Categories: Developer, Tech | Mar 3-7, 2025 Frankfurt, Germany + Online |
| Flutter Heroes | Flutter Heroes is a developer-focused conference celebrating the Flutter framework’s power and versatility. It will feature hands-on workshops, expert talks, and a vibrant community in Italy. Twitter / LinkedIn Categories: Developer, Mobile app, Tech | Mar 12, 2025 Turin, Italy |
| KubeCon + CloudNativeCon Europe | KubeCon + CloudNativeCon Europe is the premier event for cloud-native computing, uniting developers, end users, and industry leaders. It showcases cutting-edge innovations, best practices, and networking opportunities in Kubernetes and cloud-native technologies. Twitter / LinkedIn / Facebook Categories: Developer, Tech | Apr 1-4, 2025 London, UK |
| International JavaScript Conference | International JavaScript Conference focuses on JavaScript, covering frameworks, performance, and coding best practices. It’s ideal for developers building dynamic web applications. Twitter / LinkedIn / Facebook Speakers Categories: Angular, Developer, Javascript, Typescript, Tech | May 12-15, 2025 London, UK + Online |
| React Summit | React Summit is a premier event for React developers, featuring sessions on frameworks, tools, and best practices. Connect with experts to deepen your knowledge of React. Categories: Developer, Javascript, React, Typescript, Tech | Jun 13-17, 2025 Amsterdam, Netherlands + Online |
| LeadDev | LeadDev is an essential conference for engineering leaders, covering team management, career growth, and tech trends. It’s ideal for those navigating the challenges of modern tech leadership. Categories: Developer, Tech | Jun 16-17, 2025 London, UK |
| LDX3 London | LDX3 is a new festival of engineering leadership happening in London. It brings together engineering leaders at all levels to share best practices and ideas through talks and activities. The event focuses on improving software delivery ecosystems by enhancing teams, working methods, and technology. Categories: Developer, Tech | Jun 16-17, 2025 London, UK |
| WeAreDevelopers World Congress | WeAreDevelopers World Congress gathers developers to explore the latest in coding, AI, and software development. It’s a top event for developers eager to expand their expertise. Twitter / LinkedIn / Facebook Categories: Developer, Mobile app, Tech | Jul 9-11, 2025 Berlin, Germany |
| Open Source Summit | Open Source Summit is the key event for open-source developers, featuring talks on innovation, collaboration, and software advancements. It’s a gathering point for those shaping the open-source landscape. Categories: Developer, Tech | Aug 25-27, 2025 Amsterdam, Netherlands |
| LeadDev Berlin | LeadDev Berlin is a premier conference for engineering leaders, focusing on leadership, team management, and technical excellence. It offers expert talks, practical insights, and peer networking to help engineering managers thrive. Categories: Developer, Tech | Nov 3-4, 2025 Berlin, Germany |
| Big Data Conference Europe | Big Data Conference Europe gathers data experts to explore AI, machine learning, and analytics. It’s perfect for those driving data-driven innovation in their organizations. Speakers Categories: AI, Data science, Developer, Tech | Nov 18-21, 2025 Vilnius, Lithuania + Online |
| KubeCon + CloudNativeCon Europe | KubeCon + CloudNativeCon Europe is the premier gathering for Kubernetes and cloud-native innovators. It showcases cutting-edge advancements, expert insights, and hands-on learning opportunities for developers and enterprises. Categories: Developer, Tech | Mar 23-26, 2026 Amsterdam, Netherlands |
FAQs on Developer Events in Europe
Which cities host the most developer conferences?
London, Berlin, Amsterdam, and Barcelona are key cities for developer conferences due to their thriving tech ecosystems and strong developer communities.
What topics do these conferences usually cover?
European developer conferences focus on programming languages, cloud platforms, DevOps practices, artificial intelligence, cybersecurity, and advancements in open-source technologies.
What is the average cost of attending a developer conference?
Attendance fees typically range from €300 to €1,500, depending on the event’s scale and reputation. Travel and accommodation expenses vary by city.
What are some notable speakers who frequently present at developer conferences?
Prominent speakers include tech leaders like Martin Fowler and Brendan Eich and executives from companies like GitHub, Google, and Microsoft, who share insights into innovative tools and programming trends.
