Bailey HayesCosmonic
Early Bird
297 €
Until December 15th
2-Day Conference
Auditori L'illa
Where WebAssembly Gets Real
WASM I/O 2025 · 27 - 28 Mar · Barcelona
Wasm I/O is a two-day single-track conference focused on the WebAssembly ecosystem.
Join us in our third edition!
The WASM
Conference
in Europe
Join the WebAssembly community from around the world for two days of deep technical sessions. There is no better place to share, discuss, collaborate and socialize with other WebAssembly professionals.
WASM I/O 2025 will take place in the beautiful city of Barcelona. Don’t miss the chance to join us and shape the future of WebAssembly!
2 days
27 - 28 Mar 2025
Barcelona
An unbeatable location
Discover Our Sessions
Get ready for two jam-packed days filled with cutting-edge insights, groundbreaking discussions, and hands-on learning experiences.
Dive deep into the heart of WebAssembly through our talks, panels, and workshops.
View AgendaSecure
your ticket!
Early Bird
SOLD OUT![WASM I/O 2025]()
Standard
SOLD OUTStandard
379 €
Until February 23rd
![WASM I/O 2025]()
2-Day Conference
Auditori L'illaLate Bird
Ticket WASM I/O 25Late Bird
437 €
Until March 26th
-1days-18hours-18minutes-25secondsAll Things Webassembly
Barcelona
Mar • 27- 28 • 2025
2-Day Conference
Auditori L'illa
Take a look
at last year's edition
Discover Barcelona
Wasm I/O will be held at the Auditori L’illa which part of an enormous complex located on the main artery of Barcelona. City communications are excellent and access from Barcelona’s Airport and Sants Station is very quick.
Barcelona is a city with a wide range of original leisure options that encourage you to visit time and time again. Overlooking the Mediterranean Sea, and famous for Gaudí and other Art Nouveau architecture, Barcelona is one of Europe’s trendiest cities.
About The Venue
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