2025 Edition

Three cities. Two continents. One connected JavaScript community.

In 2025, CityJS continued its mission of bringing developers together through hybrid events in London, Athens and New Delhi — connecting established local communities with the wider international JavaScript ecosystem.

CityJS around the world

London, United Kingdom — Hybrid
Athens, Greece — Hybrid
New Delhi, India — Hybrid

Across all three cities, CityJS brought together developers, international speakers, community leaders and technology partners to share knowledge, explore new ideas and create lasting professional connections.

Our events are designed to be more than a day of technical talks. They create a space where developers can learn from one another, speakers can share real-world experience, and technology companies can engage authentically with the communities building the future of the web.

For sponsors and partners, CityJS provides an opportunity to build meaningful relationships with technical audiences, increase visibility within the developer ecosystem and support accessible, community-driven technology events internationally.

3 Cities · 2 Continents · 3 Hybrid Events · One Global Community

Watch talks and highlights from our 2025 events on the CityJS YouTube channel.