About us
Rhein Code: web agency and software studio in Düsseldorf
Rhein Code was founded in Düsseldorf in 2024. We build websites, online shops, apps and custom software for small and medium businesses – with three focus areas: AI for online shops, accessibility under Germany's BFSG, and websites and shops.
The founder
Yazan Aljomaa Alhaded
Founder & software developer · Rhein Code
Yazan Aljomaa Alhaded founded Rhein Code in 2024 and develops the projects personally. You talk directly to the developer who builds your project – no tickets, no account manager.
Consulting, contracts and support are available in German or English. We are based in Düsseldorf and work with clients all over Germany; meetings take place online.
- Founded
- 2024
- Based in
- Düsseldorf, Germany
- Languages
- German, English
- Role
- Founder & software developer
What we work on
- AI for online shopsAI solutions that take real work off a shop's plate – from a free AI check to ongoing operation.
- Accessibility (BFSG)Testing against WCAG 2.1 AA, fixes and the accessibility statement. Our WCAG check runs axe-core in a real browser.
- Websites & online shopsFast, GDPR-compliant websites and shops with Shopify, WooCommerce or custom code.
- E-invoicingFree tools for XRechnung and ZUGFeRD, validated with the official KoSIT validator.
- Apps & custom softwareWeb apps, platforms and iOS/Android apps from one Flutter codebase.
Technology we use
Projects that are live
Vesty
Second-hand marketplace from Düsseldorf with its own Flutter apps on the App Store and Google Play, website, payments, shipping and moderation.
TrueAuto
Data-driven car portal with 84 makes, 819 models, comparisons, a cost calculator and an AI advisor.
We designed and built both projects and still run them ourselves. Case studies (in German)
How we work
Real people, not a call center
You speak directly to the developer building your project. No tickets, no account manager.
Two languages
Advice, contracts and support in German or English — whatever you need.
Fixed prices from the start
Clearly quoted, in writing, no hourly games. Whatever we agreed is what you pay.
Pro standards
Clean code, secure architecture, GDPR- & accessibility-compliant, EU servers. Like the big agencies.
No lock-in
Domain, hosting, code — everything in your name. You can switch any time.
From MVP to scale
We start lean and expand as your business grows — no expensive restart.
Let's get to know each other
The first consultation is free – by email or video call.