Premium themes
Industry-ready storefronts with demos, licenses, and secure downloads after purchase.
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Sell more online with Shopify
Premium Shopify themes, purpose-built apps, and expert services — demos, clear licenses, and hosted checkout.
By NorthJS Tech specialists · Themes, apps, and expert services for merchants who care about craft.
Everything you need to launch and grow
Focused apps
Cart, bundles, forms, and workflow apps that stay light on the storefront.
Expert services
Theme development, app builds, migrations, and performance engagements.
Merchant support
Documentation, help center, and project paths when you need a custom build.
Built to performance budgets
We design Shopify storefronts against measurable speed budgets.
Performance
90+
Lighthouse performance budget for launch themes
Speed
90+
Core Web Vitals-minded sections and media
Accessibility
95+
WCAG-oriented patterns and keyboard-safe chrome
Featured apps
Rich Bundle Builder
Let customers assemble their own bundle, and price it however your margins require.
Rich Cart Drawer & Upsell
Replace a cart page redirect with a drawer that recovers attention instead of losing it.
Rich Form Builder
Build the forms your business runs on without a developer or a third-party embed.
Rich Product Options
Sell configurable and personalised products without hitting Shopify’s variant ceiling.
Rich Product Quiz
Recommend the right product by asking a few questions instead of hoping filters do it.
Rich Quantity Breaks
Show tiered volume pricing where customers decide, not after they have committed.
Services
Expert Shopify delivery for merchants and growing brands
Custom Shopify Store Development
End-to-end storefront builds — design, theme, apps, content, and launch — for brands that have outgrown a template.
Shopify Theme Development
Custom themes engineered for Core Web Vitals, accessibility, and merchandiser control — not just a visual refresh.
Shopify App Development
Custom public and private apps for workflows the app store does not cover — built on Shopify Functions, extensions, and the Admin API.
Shopify Plus Development
Checkout extensibility, B2B, scripts-to-Functions migration, and multi-store operations for merchants on Plus.
Headless Commerce & Hydrogen
Hydrogen and Oxygen storefronts for teams that need full control of the frontend — with an honest read on whether you need one.
Store Migration
Migrations to Shopify from WooCommerce, Magento, BigCommerce, or custom platforms — with SEO preserved.
How we work
- Step 1
Discover
Goals, constraints, catalog shape, and success metrics.
- Step 2
Design & build
Theme, app, or store delivery with demos and milestones.
- Step 3
Launch
QA, performance checks, and hosted checkout go-live.
- Step 4
Support
Docs, licenses, downloads, and ongoing help when you need it.
24/7 World-Class Merchant Support
The support team you need every step of the way
50+
Shopify launches
20+
Premium themes
8+
Shopify apps
2d
Typical support reply
Marketplace Blog
Learn & share strategies and helpful articles written by industry-leading experts
Product
When to build a custom Shopify app
Signals that a merchant has outgrown off-the-shelf apps and needs custom software.
Performance
Shopify theme performance checklist
A practical checklist for LCP, INP, and CLS on Online Store 2.0 themes.
Need a custom build?
Tell us about your store and goals.
Browse the marketplace
Premium themes and apps with clear licenses.