The tech stack that matters: Shopify vs Next.js vs WordPress in 2026

Choosing a stack isn't about what's "better". It's about what solves your problem. The three stacks are three different goals, not three qualities.

A B2B HORECA owner paid 4,000 EUR for a WordPress site in 2022. Works fine. But doesn't sell online (B2B, doesn't need to). A Shopify fashion owner wanted to migrate to custom Next.js "for better SEO". The answer: you lose Shopify checkout and gain roughly 0.3 potential conversion points. The math doesn't close.

Let's break the three stacks down on what matters: cost, time-to-launch, scalability, dependencies, ownership.

The three stacks in 60 seconds

Shopify = SaaS platform for e-commerce. Pay 29-299 USD/month, get a store ready with theme, checkout, payments, hosting, security. The limit: you don't control infrastructure. The advantage: launch in 14-21 days.

Next.js = React framework for web apps and custom sites. Pay for development (5,000-50,000 EUR), then hosting (Vercel 0-200 EUR/month). The limit: high upfront cost. The advantage: anything is possible.

WordPress = open-source CMS. Pay for development (1,000-15,000 EUR) plus hosting (5-50 EUR/month). The limit: security (WordPress is a big target for exploits due to its popularity and plugin ecosystem). The advantage: massive ecosystem, plugins for everything.

There's no "better". There's "right for your case".

When you choose Shopify (e-commerce that sells to humans)

Shopify is the right answer for:

• Fashion/beauty/home brand with 5-500 products
• Fast launch (14-21 days with personalized premium theme)
• Traffic 1,000-100,000 visitors/month
• Small team (under 5 operational people)
• Recurring payments, subscriptions, gift cards (native)
• Multi-currency, multi-language (with Shopify Markets)
• Klaviyo, Judge.me, ReConvert integrations (all have native plug-ins)

Real annual cost:

• Shopify Basic plan: 29 USD/month × 12 = 348 USD
• Premium theme: 350 USD one-time (or custom theme 2,000-4,000 EUR)
• Apps essentials (Klaviyo, Judge.me, etc): 100-300 USD/month
• Total year 1: 2,000-7,000 EUR setup + 1,500-4,000 EUR/year

Real limits:

• Checkout not customizable on Basic plan (only on Shopify Plus, 2,000+ USD/month)
• Liquid templating is limited vs JSX/React
• Certain advanced features require the Plus plan (B2B portal, advanced segmentation)
• Vendor lock-in (data is migratable, but the custom theme stays here)

Your case is Shopify if: you sell standardized physical/digital products, want fast launch, have under 100k visitors/month, don't need custom checkout.

When you choose Next.js (full control + scale)

Next.js is the right answer for:

• Complex B2B sites with custom funnels (lead gen, demo booking, product configuration)
• SaaS dashboards with auth + state management
• Stores with 100k+ visitors/month where 0.5 seconds page speed matters
• Custom integrations not available as plugins (internal CRM, custom ERP, AI tools)
• Premium brands wanting distinctive experience (advanced animations, unique design)
• Multi-step funnels (course platforms, membership, complex onboarding)

Real cost:

• Initial development: 5,000-50,000 EUR (depending on scope)
• Vercel hosting: 0-200 EUR/month (Pro plan is 20 USD/month, Enterprise scale)
• Backend (Supabase/Postgres): 0-100 EUR/month
• Maintenance: 200-2,000 EUR/month (depending on complexity)
• Total year 1: 7,000-60,000 EUR

Real limits:

• Significant upfront cost
• No pre-built backend (you handle auth, DB, payments)
• Requires technical team (dev minimum 3 years Next.js)
• Harder to modify by a non-technical person (vs WordPress drag-drop)

Your case is Next.js if: you have complex custom funnels, 100k+ visitors/month, specific integrations, want Lighthouse 95+ speed.

When you choose WordPress (B2B that communicates, blogs, presentation)

WordPress is the right answer for:

• B2B presentation sites with form-based lead gen (not direct sales)
• High-volume content blogs (1,000+ articles)
• Institutional sites, NGOs, associations
• Small stores (up to 100 products) with WooCommerce (BUT see caveat)
• Sites with frequently updated content by non-technical team
• Budget under 5,000 EUR and no need for massive scale

Real cost:

• Development: 1,000-15,000 EUR (template adapted vs custom theme)
• Hosting: 5-50 EUR/month (shared or mid-tier cloud)
• Premium plugins: 200-1,000 EUR/year
• Maintenance + updates + security: 50-200 EUR/month
• Total year 1: 2,000-18,000 EUR

Real limits:

• Security: WordPress plugins become attack vectors. WordPress is a big target for exploits due to its popularity and plugin ecosystem.
• Performance: WP without tuning = PageSpeed 30-50. With tuning (caching, CDN, optimization) = 70-85.
• Plugin bloat: 20+ plugins means slow site and update conflicts
• WooCommerce vs Shopify: under 10k visitors/month it's fine, above that Shopify wins on checkout and uptime

Your case is WordPress if: B2B presentation site, blog, frequently updated content by non-technical team, budget under 5,000 EUR.

BEFORE vs AFTER: which stack for which case

The 4 classic stack mistakes

1. "I want Next.js for better SEO" (when you already have Shopify)

Myth. Modern Shopify (2.0+) with optimized theme hits 80-90 mobile PageSpeed. Next.js can hit 95+, but the difference between 85 and 95 = under 0.2 conversion points on average sites. Migrating from Shopify to Next.js = 25,000-50,000 EUR + 6 months. ROI under 3 years: zero.

Valid exception: if you make 1 million EUR+ annual revenue, every 0.1 conversion points justifies investment. Below that, stay on Shopify.

2. "I use WordPress because it's free" (then you pay in plugins and hacks)

Myth. WordPress is free as a license. Real costs: good hosting (30 EUR/month), premium plugins (50-200 EUR/year), mandatory security plugin (10 EUR/month), backup plugin (5 EUR/month), maintenance (50-200 EUR/month). Total year 1: 1,500-3,500 EUR. Plus hack risk (average 5-10k EUR recovery cost).

Truth: WordPress isn't cheaper than Shopify Basic under 100k visitors/month. It's just more customizable.

3. "I move from Shopify to Next.js when I scale" (usually premature)

Myth. Shopify Plus supports 100M+ USD annual revenue on a single store (Allbirds, Gymshark, Kylie Cosmetics, all Shopify Plus). Migrating to custom Next.js before 5M USD/year = burning money.

Truth: stay on Shopify Plus until 50-100M USD/year. Migrate only if you need features impossible on Plus (e.g. multi-vendor marketplace, extreme custom B2B portal).

4. "WooCommerce for serious e-commerce" (security + performance disaster)

Myth. WooCommerce is fine under 10k visitors/month, under 50 products. Above that means performance nightmare, plugin conflicts, security risk. WooCommerce stores are a meaningful share of hacked WordPress sites, according to annual security reports.

Truth: serious e-commerce means Shopify (Basic, Advanced, Plus). WooCommerce is for very specific cases with restricted budgets.

Typical case study: leather fashion store on Shopify

A Shopify leather fashion owner wanted to migrate from Shopify Basic to custom Next.js "for SEO and speed". Quote received: 22,000 EUR plus 6 months timeline.

Comparative audit:

• Current Shopify Basic: PageSpeed 78, conversion 0.7%, revenue 22k RON/month
• Predicted custom Next.js: PageSpeed 92, target conversion 1.2%, predicted revenue 38k RON/month

Math: predicted revenue lift 16k/month × 36 months = 576k RON. Migration cost 22k EUR (110k RON) plus 6 months with no new revenue gains on the old stack (tens of thousands RON lost revenue) plus Next.js maintenance 5k RON/month × 36 months (180k RON). Total 36-month cost: over 350k RON. Benefit: 576k. Marginal ROI over 3 years, if predicted revenue actually materializes.

ALTERNATIVE: keep Shopify Basic, optimize with the 7 causes from our Shopify article (3,000 EUR setup, 3 months). Realistic target conversion 1.8%. Predicted monthly revenue triples. Cumulative lift over 36 months: significantly larger numbers. Cost: a fraction of the Next.js migration.

Rational decision: optimize Shopify, don't migrate. Difference over 3 years measured in millions of RON.

The stack isn't your USP. Content, offer, and sales mechanics are the USP. You change the stack when the stack is a real bottleneck, not when it's marketing copy from the developer.

Action plan for choosing the stack

1. Define the goal in 1 sentence. "I want to sell 100 bags/month at 280 RON AOV via online" or "I want a B2B HORECA lead form with 50 requests/month". The stack follows the goal.
2. Calculate 36-month revenue with each stack. Not upfront cost, but total ROI. A 1,000 EUR upfront difference is nothing against 100,000 EUR revenue difference at 3 years.
3. Check that the stack supports your operational team. Who modifies content weekly? Developer (Next.js) or marketing (WordPress, Shopify)? Your team's reality dictates.
4. Get quotes from 3 different stacks. Compare total cost of ownership at 36 months. Not just setup.
5. Don't migrate without calculated ROI. Migration takes 6-12 months + big upfront cost. ROI under 24 months = don't migrate.

Final lesson

Shopify, Next.js, WordPress aren't rivals. They are different tools for different goals. Anyone recommending one without asking what you sell is a developer who wants the project, not a consultant who wants to solve.

The right stack is the one solving your problem with minimum total cost of ownership at 36 months. Math, not hype.

Now: define your goal in 1 sentence. Then calculate 36-month revenue × 3 stacks. The difference is the answer.