FrederickDesign Studio

A Sonoma Design Studio

Considered design for clients
who care about doing it right.

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

Intentional Design

Every detail has purpose — no clutter, no noise.

Human-Centered UX

Design that respects people's time and attention.

Architectural Structure

Clean lines, deliberate structure, refined finish.

Hand-Built, Client-Owned

No templates, 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, owned by you, no fragile template to outgrow.

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.