JS Days Is Back: A Free Virtual Conference for JavaScript Developers

Sencha is bringing back JS Days, a free, two-day online conference for JavaScript developers.

Dates: September 16 to 17, 2026

Format: Fully virtual, join from anywhere

Cost: Free

Hosted by: Sencha, part of Idera, Inc.

What It’s About

JS Days is for developers, architects, and team leads working on JavaScript apps. The sessions cover:

• Building apps that stay easy to manage as they grow
• Using AI tools the right way, without losing control of your code
• Working across different frameworks like Ext JS and React without the headaches
• Practical tips for testing, shipping, and keeping your team’s workflow smooth

How the Two Days Work

Day One kicks off with an opening keynote, followed by short 45-minute sessions running all day across multiple tracks.

Day Two focuses on low-code tools, UI design, and React, streamed live with speaker Q&A and discussion rooms.

Who’s Speaking

• James Cahill, General Manager, Sencha (opening keynote)
• Marc Gusmano, Sales Engineer, Sencha (building AI agents with JavaScript, React, and ReExt)
• Wemerson Januario, Developer Advocate, Sencha
• César Martell, Software Developer (recruitment app case study)
• Andres Villalba, Sales Engineer, Sencha
• Rafael Méndez, Sencha MVP (UI design best practices)

And more coming soon!

Why Join

It’s free, it’s online, and it’s built by people who actually build JavaScript apps for a living, not just people talking theory. You’ll walk away with ideas you can use right away.

Register at jsdays.io.