Portfolio of web projects and AI projects for businesses in the DACH region by Karim Belarbi, web developer and IT consultant from Karlsruhe.

Selected websites, AI integrations and digital products — built for real clients across Germany, Austria and Switzerland. Each project is tailored to the client's goals, brand, and target audience.

Browse the portfolio to see recent case studies including NEGRA carpet and home, VACAR trailer rental, AILE artist management agency, and Von Albert Real Estate. All projects include modern design, full SEO optimization and fast performance.

All projects
Case StudyTrailer rental & mobility

VACAR

Booking a trailer like a hotel room: around the clock, in real time — without a single phone call.

Industry
Trailer rental & mobility
Services
Web developmentBooking system integrationUI designLocal SEO
Timeline
Feb – Apr 2025 · 10 weeks
Tech stack
Next.jsReactRentware
VACAR — Trailer rental & mobility
01
Context

The starting point

VACAR rents out trailers in the Karlsruhe — Baden-Baden — Rastatt region: a solid, classic business with a classic bottleneck. Anyone who wanted to rent had to call — and only when someone happened to be reachable.

The goal was clearly stated: true 24/7 availability. Customers should be able to reserve online and pick up their trailer at any time, entirely without a phone — even at seven on a Sunday.

02
Challenge

The challenge

There's plenty of rental booking software out there — but the search was for one that fits a regional trailer rental, integrates seamlessly into the company's own website and doesn't redirect customers to a third-party platform.

On top of that came the design bar: a custom look instead of template aesthetics, a fully connected booking flow without a style break — and local discoverability in a region spanning three cities.

03
Process

Solution & execution

From software selection to regional visibility.

  1. 01 · Discovery

    Finding the right booking engine

    Requirements defined — real-time availability, self-service pickup, fleet management — and the market evaluated against them. The decision landed on Rentware: a functional fit that integrates cleanly.

    Illustration: requirements checklist and three software candidates under a magnifying glass, one favorite checked
    Illustration — Software selection
  2. 02 · Design

    A rental service that feels modern

    Fleet overview with every model, transparent pricing and a clear conversion path: from the first look at a trailer to the booking button without detours. The design delivers on what a 24/7 service promises.

    Illustration: website with the trailer fleet as cards, mobile view beside it
    Illustration — Fleet UI & responsive design
  3. 03 · Development

    Rentware seamlessly inside Next.js

    Configured the booking engine and embedded it into a Next.js stack — real-time availability, support integration and full connectivity, without customers ever having to leave the site.

    Illustration: booking engine with calendar connected to the website with date picker and booking button
    Illustration — Rentware integration
  4. 04 · Launch & SEO

    Getting found regionally

    Local SEO, specifically targeted at Karlsruhe, Baden-Baden and Rastatt — plus growing visibility in AI search. Anyone looking for a trailer in the region ends up at VACAR.

    Illustration: map with three location pins and catchment area, search bar and trailer with a check mark
    Illustration — Local SEO
04
Stack

The tech stack

  • Next.js
    Framework & rendering
  • React
    UI components
  • Rentware
    Booking engine
05
Results

The results

4,000+
Unique visitors
+300%
Traffic growth
70%
Inquiries via SEO

The website is now the most important sales channel: a clear conversion path from search result to completed booking — at any hour.

Around 70% of all inquiries and bookings come in organically via SEO, with growing visibility in AI search. Over 4,000 unique visitors since the spring 2025 launch equal growth of more than 300%.

06
Voices

Client voice

Finally a website that truly fits our brand. The collaboration was straightforward and the result exceeded our expectations.
Luca CasaManaging Director, VACAR Anhängervermietung
07
Gallery

A closer look

Screenshot: va-car.de homepage with the 24/7 promise and 5-star rating
Homepage — va-car.de
Screenshot: fleet overview “Our trailers” with cooling, motorcycle and tipper trailers
Fleet overview
Screenshot: online booking with the embedded Rentware widget and cart
Booking flow (Rentware)
Two mobile views side by side: homepage and fleet overview on a smartphone
Mobile view

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