Why I Built Chizmo Tools — Building Web Tools with AI
For years, I had a running list in the back of my mind — things that felt unnecessarily complicated, small frustrations I'd learned to live with. Without technical skills, I assumed those ideas would stay ideas. But when AI became accessible to anyone, I realized the gap between "I wish this existed" and "I could build this" had quietly closed. That is exactly why I started this project right away.
When I was building Roblox games, I kept running into the same frustrations. Looking up TweenInfo syntax every single time. UI layouts breaking on mobile. Searching in English documentation, trying things, failing, trying again.
"There should be a tool that solves this instantly."
That thought is what started Chizmo Tools.
Turning My Own Problems into Tools
The first tool I built was the Roblox Tween Generator. Writing TweenInfo parameters by hand — EasingStyle, EasingDirection, Duration — was tedious every time. So I built a tool where you pick your settings and the code is generated for you. I built exactly what I wanted to exist.
Next came the Roblox UI Scale Calculator. Roblox UI built with fixed pixel values (Offset) breaks on mobile screens. Converting to Scale by hand is surprisingly tedious, so I built a tool that does the conversion instantly. I also added automatic generation of a UIScale script that handles every device automatically.
Every tool in Chizmo Tools started as a problem I personally ran into.
Starting from Zero Programming Experience
I'll be honest: I started with almost zero programming experience. I didn't know JavaScript, TypeScript, or Next.js.
What made it possible was AI. Using Claude and Cursor, I learned as I built — asking "what does this error mean?" and "how do I fix this?" at every step. This style of AI-assisted development proves that even beginners can realistically ship products.
That said, I don't hand everything to AI. Design decisions and what to build — those stay with me. AI is a coding assistant; what to build is a human decision.
Tools Made for Japanese Users
Chizmo Tools pays attention to Japanese language support. In a landscape dominated by English tools, having a tool available in Japanese makes a real difference for users who aren't comfortable in English.
Zeicalc (zeicalc.chizmotools.com) is a clear example. It handles furusato nozei (hometown tax) deduction calculations, medical expense deductions, and side income tax checks — without requiring deep tax knowledge. I wanted to solve real problems in Japanese people's daily lives with simple tools.
What's Next
Chizmo Tools is still growing. I'll keep turning problems I personally encounter into new tools.
If you find something inconvenient or have a feature request, reach out through the contact page. Because I'm building this solo, feedback gets acted on directly.