Kenn Hartwig Web Development

Berlin-based web developer working with architects, artists, cultural institutions, and creative professionals who appreciate thoughtful, individual design.

I create custom websites that reflect each client's unique character. Rather than wrestling with rigid templates or generic themes, I write modern, hand-crafted CSS to ensure your site looks and feels exactly right. Clean code, fast loading times, and solid SEO fundamentals come as standard.

From portfolio sites to complex project databases with filtering systems, to online shops – I focus on building what you actually need. Each project is approached individually, whether it's a minimalist gallery or a comprehensive e-commerce solution.

I provide long-term support for my clients and keep their websites up to date and secure.

I primarily work with Contao CMS for content management, static site generators for optimal performance, and Shopify for online retail. With over 15 years in web development, I understand both the technical and practical sides of running a website.

Happy to work independently or collaborate with your design team. Based in Berlin, available for projects internationally.


Get in contact

email:

I'm happy to discuss your project, whether you already have detailed plans or just initial ideas.


Music

I am an active musician playing music somewhere between Experimental Jazz and Krautrock. I play bass and electronics, mostly Nintendo Gameboys which I modded to use them as instruments. Check out my bands C.A.R. and Das Ende Der Liebe.


Projects (selection)


2026

Gaswerksiedlung Berlin
https://gaswerksiedlung.berlin
Website and event calendar for Gaswerksiedlung Berlin, an integral hub for music, art, and creativity, including event locations, studios and a café.


2025

Megaworld
https://megaworld.dasendederliebe.de
Online archive and music player for band 'Das Ende der Liebe'

Stefan Schultze
https://stefanschultze.com
Website for jazz musician and composer Stefan Schultze


2024

Shoots & Leaves, London
https://www.shootsandleaves.london
Website for London based catering company Shoots & Leaves

KUHN FU
https://kuhnfumusic.com
Website for band KUHN FU


2023

Sandy Rendel Architects
https://sandyrendel.com
Website for Sandy Rendel Architects


2022

IDK
https://idk-o.com
Website for London-based IDK, a team of architects, design researchers and social engagers.

Tobias Hoffmann
https://tobias-hoffmann.com
Website for jazz guitarist Tobias Hoffmann.


2021

Cyber-Waste
https://cyber-waste.io
Web app for presentation of research about the environmental and social harms brought about by digital technology and its infrastructures.

Jack Hems
https://jackhems.com/
Website for Jack Hems, photographer based in London, UK, specialising in the documentation of artworks, exhibitions and products.


2020

Planet Akwa
https://planet-akwa.com
Being a non-profit organisation, *akʷā seeks to bring value back to music by producing, publishing and promoting new music and visual works.

Diana Pfammatter
https://dianapfammatter.ch
Portfolio website for swiss photographer Diana Pfammatter.

Okra
https://okrastudio.com
Okra is a multi-disciplinary collective based in London specialising in architecture, urban research and educational outreach.

IMPAKT
https://impakt-koeln.de
Blog / event calendar / record catalogue for improvised music collective IMPAKT


2019

Emily Richardson
https://emilyrichardson.org.uk
Portfolio and archive for artist filmmaker and researcher Emily Richardson

Pablo Held
https://pabloheld.com
Website for jazz pianist Pablo Held

Studio 2020
https://studio2020.eu/
Presentation of work of architectural practice Studio 2020 from Berlin, Germany


2018

Urstrom Bier
https://urstrom-bier.de/
Website for URSTROM beer