San Antonio, Texas · Est. 1999
J 12 Designs has been building high-converting websites for San Antonio businesses for 25+ years. We don't just make sites look good — we build them to rank, convert, and grow.
Trusted by San Antonio's most recognized organizations






Most web design agencies hand you a pretty website and disappear. We stay in your corner. From strategy to launch to SEO, we build websites that work as hard as you do. Based right here in San Antonio, we understand the local market — and we know how to help you stand out in it.
San Antonio web design for local businesses is about more than a good-looking homepage. It means a site that loads fast on a phone, shows up when someone searches for what you do, and turns those visits into calls, bookings, and walk-ins. Whether you run a restaurant, a medical practice, a law firm, or a growing service business, we build both the website and the marketing engine behind it — from custom web design and redesigns to AI marketing and Fractional CMO leadership.
Services
Built around your brand, your goals, and your customers. No templates. No shortcuts.
If your current site is slow, dated, or hard to update, we rebuild it — keeping what works and fixing what holds you back.
AI-assisted content, search visibility, and campaign automation that lets a San Antonio business compete with much bigger budgets.
Executive-level marketing leadership without the full-time salary. We own the strategy, the vendors, and the results.
Every page we build is structured to rank. Keywords, schema markup, page speed, and metadata are all dialed in from day one.
Beautiful isn't enough. We design every page to move visitors toward a call, a form fill, or a purchase.




Selected work
Naming, theme, and campaign website for a virtual concert celebrating Houston music and car culture — reviving Budweiser's "Be A King" slogan with Texas swagger. It became the highest performing online campaign of 2020.
View case studyA critical website redesign delivered under strict budget constraints, rebuilt to match the resort's luxury positioning and support the booking experience for Hill Country guests.
View case studyA healthcare platform designed around continuity of care and built to serve patients in three languages, produced with an AI-assisted design and build workflow.
How we work
We start by learning your business, your customers, and your goals. No assumptions.
We map the user journey and design experiences focused on one thing: conversion.
Modern visual interfaces that reflect your brand and earn trust on first impression.
Fast, scalable, accessible — built with best practices baked in from day one.
We don't just hand you a website. We ensure it's indexed, optimized, and ready to perform.
What clients say
"Every project James Lewis has done for me has been fantastic. He's the best in San Antonio. He's artistic, and can get things done on time."
Graham Weston
Rackspace
From Alamo Heights to the Medical Center, Stone Oak to Downtown — we've built websites for businesses across every corner of San Antonio. Whether you're a local service business, a professional practice, or a growing brand, we know what it takes to compete in this market.
Address
1133 Austin Hwy, San Antonio, TX 78209
Phone
210-722-4088
Let's talk about your project. We'll show you exactly how we'd approach it — no pressure, no fluff.