About Card Catalyst
Built by an e-commerce veteran with over 20 years of hands-on experience
Weyman Kwong
Founder & Developer
I've been working in e-commerce since 2004. Over the past two decades, I've helped build and manage multiple e-commerce businesses, and owned a multi-million dollar revenue e-commerce operation of my own. Throughout it all, my focus has always been on streamlining and optimizing processes — finding ways to do more with less, reduce errors, and scale efficiently.
Card Catalyst is the product of everything I've learned. It's the tool I wished I had when I was managing thousands of SKUs across multiple marketplaces, pulling orders, and trying to keep pricing competitive. I built it to solve the real, day-to-day problems that TCG sellers face.
See my stores in action:
Why Card Catalyst?
20+ Years in E-Commerce
Deep, practical knowledge of online selling since 2004 — from marketplace listings to fulfillment logistics and everything in between.
Proven at Scale
Experience building and running a multi-million dollar revenue e-commerce business, dealing firsthand with the challenges of high-volume operations.
Process Optimization
A relentless focus on streamlining workflows, eliminating bottlenecks, and building systems that let businesses run smarter, not harder.
Built for Sellers, by a Seller
Every feature in Card Catalyst was designed to solve a real problem I encountered running my own business. This isn't theoretical — it's battle-tested.
More Than Software
My experience isn't just baked into the software — it's available directly to you. Whether you need help optimizing your fulfillment process, rethinking your business strategy, or building custom tooling, I offer consulting and training services drawn from two decades of real-world e-commerce experience.