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Ecommerce

Ecommerce Web Development for US Merchants

Shopify, Shopify Plus, WooCommerce, Magento, BigCommerce, and headless commerce — built by an ecommerce web developer team that ships stores indexed by Google on day one and pass a Lighthouse mobile audit before launch.

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500+

Clients

98%

Satisfaction

15+

Countries

10+

Years Experience

Custom Ecommerce Web Development That Sells, Not Just Loads

Most US merchants comparing ecommerce web developer options in 2026 face a platform choice — Shopify, WooCommerce, Magento, BigCommerce, or a headless build — and a vendor choice. The platform decision is mostly fixable later; the vendor decision is not. A custom ecommerce web development company that does not measure Core Web Vitals against real-user CrUX data, that ships without product schema, and that excludes ADA compliance from the SOW is not a custom build — it is a template install with a markup.

Our ecommerce engagements default to Shopify for stores under 1,000 SKUs and to WooCommerce or Magento web development services for catalog-heavy or B2B-heavy stores. BigCommerce web development is the right call when API-first SaaS-style merchant tooling matters more than theme ecosystem. Headless Shopify wins above $1M revenue when the marketing front-end deserves a Next.js-style build. We are honest about which platform fits the project; the right answer is rarely whichever platform we ship most.

Every ecommerce build ships with sales-tax integration (Avalara, TaxJar, or platform-native), real payment gateway integration (Stripe, Square, Authorize.net, Braintree, or PayPal), shipping carrier APIs (UPS, USPS, FedEx, ShipStation), and WCAG 2.2 AA accessibility — the latter is a real legal exposure in the US, not an "if budget allows" line item. Our Shopify vs WooCommerce 2026 guide covers the platform decision in detail.

Platforms

Which Ecommerce Platform Wins for Your Project

Honest platform-by-platform comparison. We ship on all five; the right choice depends on catalog, scale, ops capacity, and growth path.

Shopify

Under 1,000 SKUs, single-channel D2C, fast launch. App ecosystem mature, ops burden lowest. Transaction fees on non-Shopify Payments add up.

Best for fast-launch D2C and lifestyle brands

Shopify Plus / hire shopify web developer

$1M+ revenue, scripts, custom checkout, B2B catalogs, Launchpad. The Plus features earn the premium.

Best for mid-market brands above $1M GMV

WooCommerce

Already on WordPress, plugin-heavy ecosystem, full data control. Ops burden higher than Shopify.

Best for content-heavy stores already on WP

Magento web development agency

Catalog-heavy B2B, complex pricing rules, multi-store, multi-currency at scale. Adobe Commerce premium for enterprise.

Best for B2B and 2,000+ SKU catalogs

BigCommerce

API-first SaaS, headless-ready, mid-market enterprise. No transaction fees on any payment provider.

Best for API-first merchants

Headless commerce

Shopify Storefront API, BigCommerce headless, or commercetools — paired with Next.js front-end. Maximum performance + design control.

Best above $2M revenue with marketing-led roadmap

Deliverables

What's Included in Every Ecommerce Build

Custom theme or storefront

Shopify Liquid theme, WooCommerce block-themes, Magento PWA Studio, or Next.js storefront. Designed in Figma at component level.

Product schema

Product, Offer, AggregateRating (real reviews only), BreadcrumbList. Rich Results-validated before launch.

Sales tax integration

TaxJar or Avalara for multi-state. Platform-native for single-state simple operations. Quarterly filing-ready exports.

Payment gateways

Stripe + Apple Pay + Google Pay default. Authorize.net, Braintree, Square, or PayPal where merchant relationship requires.

Shipping carriers

UPS, USPS, FedEx, ShipStation API. Real-time rates at checkout. Order labels printed from the admin.

Inventory + fulfillment

Native platform inventory; or Cin7, TradeGecko, or NetSuite integration for multi-warehouse. Honest about which integrations break first at scale.

ADA / WCAG 2.2 AA

Real US litigation exposure on non-compliant stores. Axe-core in CI plus one manual screen-reader pass before launch.

Email marketing

Klaviyo, Mailchimp, or Brevo integration. Abandoned cart, post-purchase, win-back flows wired during the build.

Site search

Native platform search, Algolia, or Typesense per catalog size. Real autocomplete and filtering tested with real data.

Analytics + attribution

GA4 + Meta Pixel + Google Ads conversion. Server-side via Conversions API where iOS 18+ attribution loss matters.

Migration mapping if existing

URL redirect map preserves SEO. Product import. Customer data import (GDPR-compliant). Order history retention.

Hand-off + training

60-minute training session with your team. Admin walkthrough. Updates documentation.

Pricing (USD)

What Custom Ecommerce Web Development Actually Costs

Build shape	Starting cost (USD)	Timeline
Shopify with premium theme + customisation	$2,500	3-5 weeks
Custom Shopify theme (from blank Figma)	$8,000	5-7 weeks
Shopify Plus partner build	$15,000	6-10 weeks
WooCommerce custom build	$4,500	5-8 weeks
Magento web development services (custom theme)	$18,000	8-14 weeks
BigCommerce custom build	$8,000	5-8 weeks
Headless Shopify + Next.js	$18,000	8-14 weeks
Migration from existing platform	$3,500	3-6 weeks (in addition to build)

Recurring cost after launch: platform fees + transaction fees + apps. Typical SME ecommerce stack is $200-$500/mo all-in.

Core Web Development Services

Parent hub.

Headless Shopify Development

Shopify Storefront API + Next.js front-end.

Headless CMS Development

For content-heavy stores.

Shopify Plus Development Partner

Plus features deep-dive.

Shopify vs WooCommerce 2026

Honest comparison blog.

Ecommerce Cost Breakdown

Itemised cost guide.

WooCommerce to Shopify Migration

Replatform service.

Ecommerce Dubai Variant

For UAE / GCC merchants.

SEO-Friendly Web Development

Same build philosophy for non-commerce.

Frequently Asked Questions

Ecommerce Web Development — Common Questions

Shopify vs WooCommerce vs Magento for a US merchant in 2026 — which wins?

Shopify wins for SMEs under 1,000 SKUs launching in under 6 weeks. WooCommerce wins when the merchant is already on WordPress or needs full data ownership. Magento wins for catalog-heavy B2B or 2,000+ SKUs with complex pricing rules. <a href="https://webstackrank.com/blog/shopify-vs-woocommerce-2026" style="color:var(--primary-2);">Full comparison</a>.

Do you work with Shopify Plus?

Yes. We can engage as a Shopify Plus partner on builds where the Plus features (Scripts, Launchpad, Flow, B2B catalogs) earn the premium. Plus is rarely worth it under $1M GMV; above that, it usually is.

What does a custom ecommerce build cost?

Custom Shopify theme: $8,000+. Shopify Plus build: $15,000+. WooCommerce custom: $4,500+. Headless Shopify: $18,000+. Detailed in the pricing table above and our <a href="https://webstackrank.com/blog/ecommerce-website-cost-breakdown" style="color:var(--primary-2);">cost breakdown guide</a>.

Can you handle US sales tax across all 50 states?

Yes via TaxJar or Avalara integration. Native platform tax handles single-state simple cases; multi-state nexus triggers Avalara/TaxJar. We do not provide tax advice — work with a CPA on nexus determination.

ADA / WCAG compliance — what does it really mean for an online store?

WCAG 2.2 AA is the practical standard. US ecommerce stores are litigation targets — over 4,000 ADA-related complaints were filed against retailers in 2024. We bake AA into every build (semantic HTML, keyboard navigation, ARIA, screen-reader testing). We are not lawyers; consult a specialist firm on litigation exposure.

Migration from existing platform — how do you preserve SEO?

Every URL gets a 301 to the new equivalent. Product schema preserved. Search Console re-submitted. Content review post-launch to confirm rankings did not drop. Honest about the 4-8 week recovery window even on perfect migrations.

Headless ecommerce — when does it make sense?

Above $1M-$2M annual revenue when (a) the marketing front-end can compound on speed and design, (b) you have engineering capacity to operate two systems, and (c) the platform you would have used for headless is going to be a constraint on the front-end you actually want.

Hosting and PCI-DSS — what is included?

On hosted platforms (Shopify, BigCommerce, Magento Cloud) PCI is the platform's responsibility — confirmed compliant. On self-hosted (WooCommerce, headless), we configure HTTPS, security headers, and isolated database access; PCI-DSS audit is the merchant's responsibility working with the payment processor.

Hire shopify web developer talent — how does the engagement work?

Same as our other engagements — fixed scope, named team, no bait-and-switch. Most ecommerce projects run with 2-3 engineers across design, theme dev, and integrations. You can interview the team before signing.

Will you work with Magento ecommerce web development if we are already on Magento?

Yes — Magento maintenance, customisation, M2 upgrade, or Magento-to-Shopify migration. Hire magento web developer engagements are scoped per requirement. <a href="https://webstackrank.com/services/magento-to-shopify-migration" style="color:var(--primary-2);">Magento → Shopify migration</a>.