Butiklab is a Stockholm-based digital architecture firm. We specialize in custom Shopify App Extensions, bespoke UI/UX, and high-conversion systems for premium brands. We don't stack heavy third-party apps — we build proprietary software, so your store stays lightning-fast and 100% unique.
The difference between renting features and owning your infrastructure.
A $350 theme + ten heavy third-party apps
Most agencies buy a premium theme and install ten heavy third-party apps to get the features you need. This injects megabytes of bloated JavaScript into your checkout — slowing mobile load times, damaging your SEO, and quietly killing your conversion rate.
Proprietary code, written for your store
We don't rent generic apps. We build custom Shopify Theme App Extensions. Need a complex embroidery preview? A 3D product configurator? We code it from scratch — often under 100kb, decoupled from the theme, with unbreakable updates and a checkout flow optimized purely for conversion.
What we actually build — translated into business value.
Custom grid architectures, unique editorial Product Detail Pages, and lightning-fast storefronts built to convert mobile traffic instantly.
Generic customization apps look cheap. We build proprietary React/Tailwind personalizers — like real-time simulated stitch-effect engines — that make customization feel like a high-end atelier service and drive up average order value.
Interactive storytelling — gamified discounts, bespoke cart drawers, dynamic microcopy — backed by Microsoft Clarity heat-mapping and Meta CAPI so every click drives revenue.
Integrating WebGL, React Three Fiber, and 3D product showrooms directly into the buying journey — without sacrificing site speed.
Feature case study: engineering an order-to-atelier pipeline.
A luxury DTC brand needed a highly specific "tabloid newspaper" layout and a live monogramming feature. Standard Shopify themes and top-rated App Store personalization apps couldn't achieve the aesthetic without injecting the code bloat that ruins mobile conversion. So we built the pipeline from scratch.
A proprietary sub-100kb app extension, natively integrated with Shopify. A dynamic "typewriter" UI renders the embroidery live — the stitch effect — and passes complex line-item properties cleanly into the cart.
Because the brand relied on two signature products, we abandoned standard product templates and engineered dedicated editorial PDPs — rich narrative fused with frictionless UX, for a flawless transition from storytelling to checkout.
A 100% bespoke, scalable engine that handles complex personalization natively — maintaining perfect PageSpeed scores and eliminating third-party app subscription fees entirely.
Anchored starting points. Every project scoped and quoted on its own — no hourly guessing, no ceiling on ambition.
One proprietary Shopify extension — configurator, personalizer, or integration. Under 100kb, fully owned.
Custom OS 2.0 or headless build. Editorial architecture, engineered for Core Web Vitals 90+.
Wholesale ordering with tiered pricing, net terms, and quick-order forms. Native Shopify.
WebGL / R3F 3D showroom woven into the buying journey. Immersive, and still fast.
One custom app or ERP integration, admin panel included. 90-day warranty.
Monthly retainer — updates, speed monitoring, small tweaks, priority build time.
Scoped and quoted within 24 hours of your first message. No discovery calls that go nowhere.
A clear process from first message to live store.
You describe the problem. We send a fixed quote within 24 hours. No hourly guessing.
Weekly demos via Loom. You see progress without meetings. Revisions baked into scope.
Store goes live. Documentation delivered. 30-day support included. Optional care plan.
High-end products deserve high-end infrastructure. Whether you need a custom personalization engine, a 3D showroom, or a complete structural rebuild, Butiklab engineers the technology that powers premium brands.
hello@butiklab.comBuilt in Stockholm · Working with premium brands globally · Response within 24h