23-24 March | Barcelona

WASM I/O 2023

All things WebAssembly

Wasm I/O is a two-day single-track conference focused on the WebAssembly ecosystem.
Join us in our first edition!

Secure Your Ticket
Call for Papers

The Wasm
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 2023 will take place in the beautiful city of Barcelona. Don’t miss the chance to join us and shape the future of WebAssembly!

Detail illustration WASM I/O Detail illustration WASM I/O

2 days

23-24 March 2023


An unbeatable location

Call for papers

Want to share your knowledge / experience or have an interesting story? Presenting at Wasm I/O is an awesome opportunity to engage with the WebAssembly community.

Send us your talk, lightning talk, panel or workshop session for more in-depth coverage of topics.

We welcome proposals from everyone, and will evaluate each proposal.

Submit your proposal

Share your story!

Our CFP is open, don't miss the opportunity to speak at Wasm I/O 2023


Secure your ticket!

Early Bird

227 €

Until 15th Dec (limited)


297 €

15th Dec 22 - 28 Feb 23

Late Bird

367 €

After 1st March

*All prices exclude VAT

Get your Ticket today

Discover Barcelona

Wasm I/O will be held at the AXA Convention Center 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.

Detail illustration WASM I/O Detail illustration WASM I/O

Become a Sponsor

Let's build the future together!
Download our prospectus to find out more about the benefits of sponsoring Wasm I/O 2023

Download our prospectus

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