FrederickDesign Studio

Custom Web Design + Development · Sonoma, CA

Custom Websites,
designed and built.

A Sonoma studio building websites and brand systems with the restraint, structure, and discretion the work deserves. Every project is fully custom, and held to one standard.

Now booking · opens September 20, 2026

Search Changed

When search runs on AI, is your business in the answer?

More search answers are written by AI now, and the businesses named in them get the call. Google’s own guidance on how to be one of them is duller than the people selling “AI optimization” would like: it is still SEO, done properly.

Intentional Design

Every detail has purpose. Nothing on the page is decoration.

Human-Centered UX

Design that respects people's time and attention.

Architectural Structure

Clean lines, deliberate structure, refined finish.

Fully Custom, Client-Owned

No templates and no site builders, ever. You own what I build.

Featured Project

What I Do

Built around one question.

Every engagement is built around one question: what should this do for the people who use it?

Web Design & UX

Clean, modern interfaces built for clarity and flow.

Full-Stack Development

Heavy-duty systems I build and control end to end. Next.js and React on the front, Supabase (Postgres, auth, storage) underneath, with local-first and headless AI where it earns its place. Fast, and owned by you.

Brand Identity & Visual Systems

Editorial, structured brand systems for businesses that want to stand out.

Frederick Merlin Fritzinger, founder of Frederick Design Studio

About

Studio craft, agency discipline.

Frederick Design Studio is my independent practice. Sonoma-based, pairing hands-on craft with an agency’s discipline. Clear thinking, clean structure, and a finish that holds up. Every project gets my full attention and the same standard, from first wireframe to launch and beyond.

More About the Studio

Let’s start a conversation.

Tell me what you’re building and I’ll be honest about fit. The right partnership starts with the right conversation.