We build websites that
We develop custom websites, online stores and apps. No smoke, no generic templates. Clean code, real results.
What we do
Digital development services for businesses that want to grow online. Tailored solutions, real deadlines and measurable results.
Web Development
Modern websites with Next.js: fast, secure and ranking on Google from day one. Every project includes custom Figma design, a no-code CMS, analytics integration and Core Web Vitals optimisation to load in under one second.
Online Stores
E-commerce with Shopify, WooCommerce or a fully custom solution. Multi-currency payment gateway, stock management, product SEO, abandoned cart recovery and a design built to maximise conversion from day one.
Custom Web Apps
CRMs, dashboards, client portals and internal tools built exactly to your needs. React + Node.js or Python, scalable architecture, code that belongs to you and full documentation so your team can grow with the platform.
SEO & Performance
Full technical audit, Core Web Vitals optimisation, SEO content strategy and link building. We analyse your competitors, identify the highest-potential keywords and build an organic presence that drives traffic without relying on ads.
Website Maintenance
Security updates, daily cloud backups, 24/7 uptime monitoring and priority technical support. Your site always online, protected against vulnerabilities and up to date without you having to worry about anything technical.
AI Integration
Intelligent chatbots trained on your business, automation of repetitive processes and GPT or Claude features integrated directly into your website or app. Save hours of work every month and give your customers a faster, smarter experience.
Mobile Apps
Native iOS and Android apps built with React Native. One codebase, native performance, and publishing on the App Store and Google Play. Perfect for businesses that want to be in their customers' pockets with push notifications, integrated payments and offline access.
Why choose us?
There are hundreds of agencies in Madrid. These are the concrete reasons our clients choose us and come back.
Your code, not templates
Every website we build starts from scratch in Figma and ends as clean Next.js code that belongs to you. No WordPress themes, no Wix, no Squarespace. That means your website has none of the growth ceiling imposed by generic platforms: it is yours, it is fast and it can grow with you without limits.
Speed as a principle, not an extra
53% of users abandon a website that takes more than 3 seconds to load. Our websites load in under 1 second because performance optimisation is not a final step — it is built in from day one of the design. Optimised images, code splitting, no unnecessary plugins.
Technical SEO included in every project
Good Google ranking is not luck or paid ads. Every website we deliver includes correct semantic structure, optimised metadata, dynamic sitemap, JSON-LD structured data and Core Web Vitals in the green. Your clients can find you on Google from day one.
Clear process, no surprises
Before writing a single line of code, we design everything in Figma and you approve it. The quote is fixed before we start: what we quote is what you pay, no last-minute extras. And when we deliver, we train you to manage your own website without depending on anyone.
Your business,
in your customers' pocket.
Native apps for iOS and Android. React Native or Flutter depending on the project — published on official stores and connected to your website from day one.
Native performance
React Native and Flutter compile to real native components. 60 fps on both platforms.
Push notifications
Personalised real-time alerts straight to the home screen.
Good morning
Codelvia App
Dashboard
Codelvia
12 active tasks
Integrated payments
Stripe, Apple Pay and Google Pay. Checkout in a single tap.
Connected to your site
Same API and database. Web and app in sync instantly.
Projects
Every project is unique. Here are some of the work we are most proud of.
Vestido Midi Flores
89,00 €
ModaTeca — Tienda Online
Moda Barcelona SL
DentaCare CRM
Panel de gestión
García, Ana M.
Limpieza · Lun 10:00
López, Juan P.
Revisión · Mar 11:30
Martín, Sara K.
Ortodoncia · Mar 15:00
24
Hoy
142
Mes
98%
Asistencia
DentaCare CRM
Clínica Dr. García
Error al iniciar sesión
AltaFactura no recibida
MediaCuenta bloqueada
MediaCambio de contraseña
BajaTicketFlow — Soporte
SoftwareOne España
What our clients say
Real results from real businesses.
“Codelvia transformed our online store. We went from a slow WordPress to a website that loads in under 1 second. Sales went up 120% in 3 months.”
“The process was super clear from the start. We approved the design before developing, no surprises. Now we manage appointments online without depending on anyone.”
“We needed a custom app to manage our fleet. Codelvia understood exactly what we wanted and delivered on time. Highly recommended.”
Blog
Articles on web development, SEO and digital business.
How online stores use AI to sell more without increasing traffic
Increasing traffic is expensive. Improving what you do with the traffic you already have is much more profitable. AI is changing this for stores of all sizes in 2026.
Your website takes 4 seconds to load. Here is why (and how to fix it)
We audit Spanish SME websites every week. Speed problems always come from the same places. We tell you straight, with the metrics Google actually uses in 2026.
AI and jobs in 2026: what is really happening in Spanish companies
We have spent months talking to companies that have implemented AI. The reality is more nuanced than the headlines suggest.
Ready for the website you deserve?
Tell us about your project. Free first consultation, no commitment.