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Shopify (Plus) development & migration

We design and build Shopify stores for ambitious fashion, lifestyle, and home & living brands — from custom theme development and platform migrations through to complex integrations and ongoing optimisation.

Not on Shopify yet? We will help you migrate to Shopify from other ecommerce platforms such as Woocommerce, Lightspeed, Magento or other (custom) solutions.
Replatforming from Woocommerce to Shopify Plus with a customised theme.
Custom theme design and development with ongoing conversion rate optimisation.
Replatforming from Woocommerce to Shopify with a custom theme.
Platform migration
We manage end-to-end migrations to Shopify from platforms including WooCommerce, Magento, Lightspeed, and custom-built solutions — covering technical planning, data migration, customer journey analysis, UX improvements, and post-launch optimisation. We treat every migration as an opportunity to improve, not just replicate what existed before.
Shopify & design & development
We create tailor-made Shopify stores that translate a brand's identity into a high-performing digital flagship. Our process starts with research — competitor analysis, user behaviour, and site performance data — which informs every design and UX decision. Our designers and developers work as one team, applying deep knowledge of both ecommerce best practices and the specific visual and commercial needs of fashion, lifestyle, and home & living brands.
Custom integrations & middleware
Where no off-the-shelf solution exists, we build custom middleware and private apps. Our full-stack development team builds direct integrations between Shopify and the systems your business depends on — ERPs, fulfilment platforms, data warehouses, and third-party tools including Exact Online.
International expansion
We design and build multi-market Shopify stores for brands growing across borders — covering localisation, Shopify Markets configuration, multi-currency, multi-language, and the market-specific UX considerations that determine whether international traffic converts.
Conversion rate optimisation
Through structured analysis, user research, and rigorous A/B testing, we identify what's holding back your store's performance — whether that's add-to-cart rate, AOV, or conversion rate — and systematically test the improvements.
Ecommerce management
We provide ongoing development support, performance monitoring, and technical maintenance so your store continues to evolve alongside your business.
B2B ecommerce
We help you migrate, set up and integrate B2B capabilities into your Shopify Plus store, including custom pricing, wholesale accounts, bulk ordering, quote requests, and customer-specific catalogs. Whether you're adding B2B to an existing DTC operation or building a dedicated B2B experience, we strategise and implement the solutions that support how your business actually sells to trade customers. We also have extensive experience in connecting (highly customised) Exact Online through custom middleware.
Get in touch
Very satisfied with the collaboration. Good Karma has a great eye for detail and design, extensive and deep knowledge of Shopify, and an excellent development team. Working with them is easy, and communication is clear and well-structured.
Dewi
Dewi
Ecommerce manager @ Vondels
GoodKarma is an absolute pleasure to work with. They respond quickly, truly think along with you, and are genuine Shopify experts. They have extensive knowledge of a wide range of Shopify apps and a great eye for design and aesthetics. Together with GK, we completely redesigned our website and collaboratively developed several new sections and functionalities. I would highly recommend them to anyone looking to take their Shopify store to the next level.
Thierry
Thierry
Ecommerce manager @ SUITE702
Goodkarma is a great and reliable partner in online marketing. They manage our Google and Meta campaigns and support us with our email marketing. What stands out immediately is their expertise, they are true specialists in their field and always work from a clear, well-thought-out strategy. What we particularly appreciate is their structured approach and the fact that they take the lead in what they do. They think proactively, take initiative, and ensure everything runs smoothly. That gives us confidence and peace of mind. In addition, the people at Goodkarma are simply a pleasure to work with: professional, committed, and friendly. And for us, that is just as important when working closely together. In short, a knowledgeable and enjoyable partner to collaborate with!
Chantal
Chantal
Marketing manager @ Storytiles
We have been working with GoodKarma since April and we couldn't be happier with their exceptional Shopify support and development services. Having previously experienced their digital marketing skills, transitioning to E-commerce with them was a natural choice. Their hands-on and proactive approach, coupled with their dedication to being part of our team, has truly been a game-changer. Their helpfulness and expertise have been invaluable in achieving our goals. Highly recommend GoodKarma for all your E-commerce and marketing needs!
Rebecca
Rebecca
Ecommerce Manager
“GoodKarma did not only inspire us, they challenged us to think even bigger than we already do. We had to reconsider our position within the market and GK guided us in the right direction. We are amazed by their work and the way they look at a brand and your goals as a whole.”
Jeroen
Jeroen
Co-founder @ Revolt
“Good Karma created our new brand, Nestera, and built us webshops in The Netherlands, Belgium, France, Germany and the USA. Their deep knowledge of Shopify Plus allowed us to get all these web shops launched within a few months of each other. The sites are performing fantastically and we are absolutely delighted with the results!”
Richard
Richard
Founder @ Nestera
"GK is the partner we have been looking for since the day we started. Professional, quick and always thinking ahead for us. They managed to migrate us in hard times to Shopify within 6 weeks which ever since helped us grow and head into the future with confidence."
Bas
Bas
Founder @ Colourful Rebel
"GK is not just an agency. They become part of your team and they think with you and not for you. We have worked with several agencies specialised in branding and website development, but the experience and the professionalism we got from GK are something that we will keep coming back for. They are by far the best in town!"
Nelli
Nelli
Founder @ Bundleboon
“GoodKarma has a strategic but hands-on approach and was up-to-speed about our strategic goals in no time. They have a clear and proven way of working, resulting in both short- and long-term results.”
Frank
Frank
Head of E-commerce @ FÉST
"For email marketing and Shopify development we went looking for a partner who could do it better, faster, and prettier. Usually we are happy with a partner that can do 2 out of 3. Good Karma did all 3."
Kasper
Kasper
Cofounder @ LABFRESH
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