> Markdown version of [/events/world-congress-2025/sessions/848-marko-js-unsung-hero](https://www.wearedevelopers.com/events/world-congress-2025/sessions/848-marko-js-unsung-hero). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Marko.js: Unsung Hero of Scalable Web Frameworks


- **Date:** Friday, Jul 11, 2025
- **Time:** 13:40–14:10 (30 min)
- **Room:** Stage 9
- **Event:** World Congress 2025
- **Tags:** frontend, javascript, performance

## Recording

[Watch recording](https://www.wearedevelopers.com/videos/1669-marko-js-unsung-hero-of-scalable-web-frameworks)

## Description

Marko.js is a JavaScript framework created by eBay back in 2014. It offers super-efficient server-side rendering, making it ideal for big e-commerce sites and other multi-page apps where speed and SEO really matter. After over 10 years of development, Marko has some standout features that make it an interesting choice. In this talk, I’ll dive into these unique features and showcase some of Marko's innovative solutions. You might not use Marko.js at your company, but there’s still a lot you can learn from it to bring to your next project.

## Speaker

### [Eugene Fidelin](https://www.wearedevelopers.com/@eugene-fidelin)

Engineering Manager & Frontend SME @ eBay


## Related talks at this congress

- [Advanced Micro Frontends: Multi-Version and Multi-Framework Scenarios](https://www.wearedevelopers.com/events/world-congress-2025/sessions/501-advanced-micro) — Manfred Steyer
- [End-to-End TypeScript: Completing the Modern Development Stack](https://www.wearedevelopers.com/events/world-congress-2025/sessions/759-end-to-end) — Marco Podien
- [The Journey of a Pixel in a React Application](https://www.wearedevelopers.com/events/world-congress-2025/sessions/890-the-journey-of-a) — Shem Magnezi
- [How to kill JavaScript from your Stack with HTMX and Kotlin](https://www.wearedevelopers.com/events/world-congress-2025/sessions/742-how-to-kill) — Frederik Pietzko