About Us
Built by engineers, for engineers
方晶株式会社 (Crystal Cube Inc.) is a Kanagawa-based software company dedicated to making database work faster, clearer, and more enjoyable for developers worldwide.
Our story
Our story
方晶株式会社 was founded by a small team of backend engineers who were frustrated with the state of database tooling. Existing clients were either too heavyweight for daily use or too minimal to handle the complexity of modern multi-database environments.
We started building PilotKit as an internal tool. Within six months, colleagues at other companies were asking to use it. We decided to turn it into a proper product — one that respects the developer's time and works the way they think.
Today PilotKit is used by developers across dozens of countries. We remain a small, focused team. Every feature we ship is something we use ourselves every day.
What we believe
Our values
Speed first
Every interaction should feel instant. We obsess over startup time, query latency, and UI responsiveness.
Focused scope
We build database tools and nothing else. Depth over breadth — we would rather do one thing exceptionally well.
Privacy by design
PilotKit runs entirely on your machine. Your credentials and query history never leave your device.
Craft matters
We care about the details — keyboard shortcuts, syntax highlighting, error messages. Good tools feel good to use.
The team
The people behind PilotKit
Former backend engineer at LINE and Mercari. Obsessed with databases and developer experience.
10 years building developer tools. Maintainer of several open-source database libraries.
Believes great software is invisible. Focused on making complex workflows feel effortless.
Specialises in query parsing and execution plan visualisation. Contributor to the PostgreSQL ecosystem.
Contact
Get in touch
For business inquiries, press, or partnership opportunities.
Try PilotKit free
30-day full-featured trial. No credit card required. Available for Windows, macOS, and Linux.