What stack do you use?

Typically React or Next.js with Laravel or Node where it fits. We pick for the product, not a trend.

How long does an AI web app take?

A contained internal app can move in weeks to a few months. Integrations dominate the timeline.

Can this sit on our domain?

Yes. It is your product, on infrastructure you control.

Do you also design the UI?

Yes. The review and edit screens are the product, not a leftover.

150+ projects delivered for UK and international brands

AI Web App Development in London

AI web app development for London businesses that need AI inside a real application — auth, workflows and UI — not a chat overlay on a brochure site.

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AI web app development for London businesses that need AI inside a real application — auth, workflows and UI — not a chat overlay on a brochure site.

Start Your AI Agent

AI inside a web app your team will actually use

AI web apps with a workflow, not a widget

Design Dev builds AI web apps for UK teams who need the model inside the product: logged-in users, states, files and a UI that matches how they work.A chatbot on a marketing site is a different job. Say so if that is what you want.

Product-grade AI UI

States, review, undo — not a single chat box.

Auth and roles

Who can see what the model produced.

Files and records

The app holds work, not just a transcript.

Integrations

CRM, storage and APIs the workflow already needs.

A clear AI web app process from screens to production

Map the workflow

Screens, roles and where AI helps versus where it must not.

Design the product UI

Review, edit, export — the AI is a step, not the whole app.

Build the application

Web app, auth, data and the model where it earns its keep.

Test with the users of the app

They try to do the job. We fix the product, not the prompt only.

Deploy and iterate

Production, monitoring and a backlog of the next screens.

AI belongs in the application, not as a sticker

If the work lives in an app, the AI should too. Design Dev builds AI web apps as products: Laravel or React, roles, files and a workflow.

If you only need a chatbot on the website, that is a different service.

AI inside the workflow
Roles and audit
Files and records, not only chat
UK-English product UI
Production deployment
A backlog of screens

Start a project

Complete AI web app capabilities

Logged-in AI products — screens, roles and a model that sits in the work.

Internal AI web apps

Staff tools with login, roles and a job to finish.

Customer portals with AI

Customers complete work with AI assist and a human path.

Document AI apps

Upload, extract, review and export.

Ops dashboards with AI

Summaries and next actions on live records.

Review and approval UIs

Nothing ships from the model without a human when it must not.

API-backed AI apps

Your systems stay the source of truth.

Need an AI web app, not a chatbot sticker?

Speak with Design Dev about an AI web app with auth, workflow and a model that sits in the work.

Start Your AI Web App

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AI web apps across key industries

Industry focus

Professional Services

Matter and knowledge apps with review, not a public chatbot.

Draft apps
Knowledge apps
Intake portals
Review UIs

Discuss your project

Why Design Dev

A London team that builds AI as part of the application

Design Dev builds AI web apps for teams who are tired of widgets. The application is the product. The model is a step in it.

150+

Projects delivered

Years experience

UK+

London & worldwide

98%

Client retention

Start Your AI Web App

A London team that builds AI as part of the application

Strategy, design and engineering for brands that need a website that performs.

Application first

Auth, data and UI are not afterthoughts.

AI where it earns its keep

We will not sprinkle a model on every screen.

Review is a screen

Undo, edit and export are part of the app.

UK delivery

Product engineering, not a prompt packed into a page.

Technologies we work with

OpenAI

Python

Laravel

PHP

React

JavaScript

MySQL

HubSpot

Node.js

WordPress

Stripe

Figma

What clients say

Design Dev transformed our e-commerce platform. Their team was efficient, responsive, and delivered a stunning layout that doubled our conversion rate within a month.

Sarah Jenkins

Vauxhall Marketing - Shopify Development

An absolute pleasure to work with. They understood our brand identity perfectly and designed a clean, user-friendly SaaS platform that our clients love.