Custom Shopify Theme Development

Built from Figma.
Pixel-perfect. Zero bloat.
Built to convert.

Generic themes are built for everyone, which means they're optimised for no one. We build custom Shopify themes in Liquid and vanilla JS — lightweight, fast, and architected around your specific products and conversion goals.

340KBAvg. JS Output
+22%CVR After Build
100PageSpeed Target
0Framework Dependencies
The Problem with Off-the-Shelf

A theme you didn't build
is a ceiling you didn't choose.

Generic themes hit a ceiling

Starter themes are built for the average store. The moment your product catalogue, UX flow, or brand identity diverges from average, you're fighting the theme instead of building on it.

App-stacked themes collapse under load

Each installed app patches code onto code you don't own. The result is conflicting CSS, render-blocking scripts, and a store that becomes harder to maintain with every update.

Slow themes destroy paid media ROI

A 7-second mobile load on a theme you didn't build means every Meta and Google ad sends traffic to a broken experience. You're paying to lose customers.

No custom cart or upsell logic

Pre-built themes don't support custom cart drawers, conditional upsell logic, or loyalty-tier-based pricing without heavyweight apps that slow you down further.

How We Build

Architecture before aesthetics.
Performance before launch.

01

Discovery & Architecture

We map your product catalogue, revenue goals, and UX requirements before writing a single line. Every section is designed with a performance budget from day one.

02

Figma to Liquid Build

We convert your designs into clean, semantic Liquid with vanilla JS. No React, no framework overhead — just fast, maintainable code that runs exactly as built.

03

Custom Cart & Conversion Logic

Cart drawer, upsell recommendations, free-shipping progress bars, one-click add-to-cart — built custom in ~4KB of JS, no app dependency required.

04

Performance QA & Handoff

We test against your performance budget on real mobile hardware before handoff. LCP, CLS, TBT. You get documented code, not a black box.

What's Included

Everything built.
Nothing handed off half-done.

Every theme build includes the full conversion infrastructure — not just the visual layer. Cart, upsells, performance, and documentation are all part of the deliverable.

Get a Build Proposal
Full Figma-to-Liquid conversion
Custom section architecture with performance budgets
Vanilla JS — no framework bloat
Custom AJAX cart drawer
Upsell and cross-sell logic via metafields
Free-shipping progress bar
Responsive — tested on real mobile hardware
App conflict audit and clean integration
Documented Liquid code for your team
Core Web Vitals QA report before handoff
90-day bug warranty post-launch
Real Result

Berlin DTC brand: rebuilt from scratch.
+22% CVR. −84% JS payload.

A streetwear brand scaling from €200k to €1M ARR had a 74% checkout drop-off and a 7.2s LCP on mobile — caused by a heavily patched free theme running 2.1MB of conflicting JavaScript. We rebuilt the architecture from scratch: custom Liquid, vanilla JS cart drawer, upsell engine via metafields, and Klaviyo integration. JS payload dropped to 340KB.

Read the full case study
+22%CVR Lift
−84%JS Payload
−3sLCP Reduction
+18%AOV

Custom Theme Build

Ready to build a store
that's actually yours?

Get a Build Proposal
Custom Shopify Theme Development — Figma to Liquid, Zero Bloat | Antyqo