Websites that carry a whole business. Web applications that do one job completely. Everything is built from scratch, and we stay on after launch.
Website
A Philadelphia real estate practice with nine neighborhood market pages rebuilt every month, and the work of ranking a new site against the portals.
custom Flask · Google Cloud VM · interactive charts · local SEO
Web application
A web application that turns an address into a neighborhood map anyone can embed with a single line of code.
Flask · MapLibre GL · PostgreSQL · Stripe · Google Cloud Run
Online store
Shopify’s stock Dawn theme stripped to its frame and rebuilt as a bespoke liquid glass system, mobile-first, down to the checkout.
custom Shopify · liquid glass UI · custom sections · mobile-first
Three kinds of thing, each built from scratch around the job it has to do.
A site that carries the whole business. Found by strangers, trusted by referrals and maintained after launch.
Web design in PhiladelphiaOne job, done completely. Accounts, data, billing and an embed that drops into any page.
Web application developmentSized for the three jobs an agent’s site has to do, with neighborhood pages instead of rented search.
Websites for realtorsFour steps, the same every time. You see and hold the work before anything is final.
Tell us what the site has to do. We quote a fixed price after one conversation, and the number is driven by behavior, not page count.
You hold a working version and feel how it scrolls before anything is final. Changes are cheap at this stage, so this is where we make them.
Once the structure holds, you get a copy file shaped to match it and write it in your own voice. We load it in as written.
We maintain what we build. A maintained site is the one that keeps getting found, and most sites go quiet after launch.
We use AI to move faster. The judgment about what to build, and whether it is working, stays with the person who builds it.
Read how we workLetter Box Digital builds bespoke websites and web applications in Philadelphia. Founder-built, operator-minded and convinced a website should be the hardest-working asset a business owns.
Read moreFlask, PostgreSQL and Google Cloud. The same tools behind some of the largest products on the planet, and nothing your business doesn’t need. No themes, no plugins.
Look under the hoodA new site, a web application or a problem you haven’t found the tool for. Write a few lines and we’ll reply within one business day.
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