tap.

cards

about

Hello! Thank you for visiting Tap.Cards!

I’ve always been fascinated by the systems that move people—subways, buses, trams, and everything in between.

This site is a personal archive documenting the design, function, and history of these everyday objects. From the sleek SUICA cards of Tokyo to the bold and colorful TAP cards of Los Angeles, each piece tells a small story about a city’s identity and how people live and move within it.

Here, you’ll find cards organized by cities around the world with key details like compatibility, mobile support, and issuing authority.

This is an ongoing project—I’m constantly adding new cards and refining the information. Whether you’re a transit geek like me, a designer looking for inspiration, or just curious, I hope you find something here that makes you pause and appreciate the small systems that shape our daily lives.

By Aaron Xu, 2025