Our products
We find problems worth solving and own the outcome
We turn everyday friction and curiosity into products, then keep operating and improving them after launch.
- Discovery & strategy
- Design & development
- Launch & iteration
PRODUCT STUDIO / FUKUOKA
MIZUKICHI Lab is a Fukuoka product studio working from problem discovery and design through development and post-launch improvement.
WHAT WE DO
We create and operate products of our own, and partner with teams to shape web and mobile ideas into products people use.
Our products
We turn everyday friction and curiosity into products, then keep operating and improving them after launch.
Build with us
From web services to mobile apps and LINE Mini Apps, we can join before the brief is fixed and help through launch and iteration.
OUR PRODUCTS
Better places to work, safer laptops, and playful ways to connect — products we continue to operate ourselves.

A LINE-based service for finding coworking spaces and work-friendly cafés in Fukuoka, with useful details and coupons built in.
Visit product
A laptop security app for short moments away, connecting tamper detection, alarm, evidence capture, and phone notification in one flow.
Visit product
A one-on-one browser mind game with only three moves. Easy to learn, quick to play, and built to spark conversation and laughter.
Visit productHOW WE BUILD
We do not pretend to know the answer upfront. Tangible work helps us learn earlier and make better decisions.
Start with the person, the friction, and a clear reason to build.
Make the smallest useful version and turn assumptions into evidence.
Refine the experience and release something people can genuinely use.
Learn from real use, choose what matters next, and keep improving.
JOURNAL
Stories from product operations, places to work, making things, and the people we meet along the way.
START A PROJECT
We can begin by clarifying the problem and shaping the idea together. Tell us what you are considering.
Start a conversation