If you're running a Drupal site in 2026 and you've started getting quotes for a Next.js migration, you've probably noticed something: the numbers are all over the place. One agency says £15k, another says £120k, and a freelancer on Upwork will do it for $3,000. None of them are necessarily lying -- they're just scoping very different things.

I've been involved in enough of these migrations to know that the real cost depends on a handful of specific factors that most pricing guides gloss over. This article is my attempt to lay out what a Drupal-to-Next.js migration actually costs in 2026, with real numbers in both GBP and USD, broken down by site complexity, team structure, and the hidden costs that catch people off guard.

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Drupal to Next.js Migration Cost in 2026: Real Pricing in GBP & USD

Why Drupal Sites Are Migrating Now

Drupal 7 reached end-of-life in January 2025. That was the big trigger. Thousands of organisations -- particularly in UK government, higher education, and enterprise -- were running on D7 and suddenly faced a choice: upgrade to Drupal 10/11, or jump ship entirely.

Here's the thing: if you're going to rebuild anyway, a lot of teams are questioning whether Drupal is still the right platform. The Drupal developer pool has been shrinking since 2020. The State of Drupal survey in late 2024 showed that active Drupal contributors dropped by roughly 18% compared to 2021. Meanwhile, the JavaScript ecosystem keeps growing.

For many organisations, migrating to a headless architecture with Next.js on the frontend makes more sense than another Drupal-to-Drupal upgrade that'll need the same painful process in five years.

That said, this isn't a "Drupal is dead" article. Drupal 11 is solid. But the economics have shifted, and that's what we're here to talk about.

The Real Cost Factors

Before I throw numbers at you, let's establish what actually drives the cost of a Drupal-to-Next.js migration. These are the variables that create that massive spread in quotes.

Content Volume and Structure

A brochure site with 50 pages is fundamentally different from a publishing platform with 40,000 articles, custom taxonomies, and paragraph-based layouts. The content model mapping alone can take weeks on larger sites.

Custom Functionality

Every custom Drupal module needs an equivalent. Some are trivial (a contact form), some are expensive (a custom booking system built on Drupal entities). If you've got Drupal Commerce, add 30-40% to your budget.

Integration Complexity

CRMs, payment gateways, SSO providers, legacy APIs -- each integration needs to be rebuilt or adapted. I've seen projects where the Drupal site itself was simple, but it was connected to seven different systems that all needed new integration work.

Editorial Workflow Requirements

Drupal's content moderation and workflow system is genuinely good. Replicating that in a headless CMS takes deliberate effort. If your editors rely on complex approval chains, this adds cost.

SEO Preservation

If your site has significant organic traffic, maintaining URL structures, redirects, metadata, and structured data is non-negotiable. This is often underestimated. A site with 10,000+ indexed pages needs a carefully planned redirect strategy.

Accessibility and Compliance

UK public sector sites need WCAG 2.2 AA compliance. US sites increasingly need it too, especially after the 2024 DOJ ruling on web accessibility. Building an accessible Next.js frontend from scratch costs more than using Drupal's tested contrib themes.

Pricing by Site Complexity

Here's where we get concrete. These ranges are based on quotes I've seen and projects I've been involved with in 2025 and early 2026. They assume a professional agency engagement, not a solo freelancer.

Site Complexity Description UK Agency Cost (GBP) US Agency Cost (USD) Timeline
Small 10-50 pages, blog, contact forms, basic CMS £12,000 - £30,000 $15,000 - $40,000 6-10 weeks
Medium 50-500 pages, multiple content types, search, integrations £30,000 - £75,000 $40,000 - $95,000 10-18 weeks
Large / Enterprise 500-10,000+ pages, complex workflows, e-commerce, multilingual, multiple integrations £75,000 - £200,000+ $95,000 - $250,000+ 4-9 months
Government / Public Sector Accessibility requirements, security audit, GDS compliance £50,000 - £150,000 $65,000 - $180,000 3-8 months

A few notes on these numbers:

  • The low end of each range assumes a straightforward content migration with a standard design system. The high end assumes custom design, complex data migration, and multiple integrations.
  • Enterprise quotes above £100k/$125k typically include a discovery phase, content strategy, and post-launch support contract.
  • These don't include ongoing hosting and maintenance costs, which I'll cover in the TCO section.

Drupal to Next.js Migration Cost in 2026: Real Pricing in GBP & USD - architecture

Agency Rates: UK vs US in 2026

The rate difference between UK and US agencies has narrowed in recent years, but it's still significant. Here's what you're looking at for blended rates (the average across different roles on the project):

Role UK Day Rate (GBP) US Hourly Rate (USD)
Senior Next.js Developer £500 - £800/day $150 - $250/hr
Mid-level Developer £350 - £550/day $100 - $175/hr
Technical Architect £700 - £1,100/day $175 - $300/hr
UX/UI Designer £400 - £700/day $120 - $200/hr
Project Manager £350 - £600/day $100 - $175/hr
QA Engineer £300 - £500/day $90 - $150/hr
Content Migration Specialist £300 - £500/day $85 - $140/hr

UK agencies typically quote day rates. US agencies typically quote hourly. The UK market is about 15-20% cheaper on average, but London-based agencies with enterprise clients often match or exceed US pricing.

Nearshore and offshore options exist too. Eastern European agencies (Poland, Ukraine, Romania) are quoting £250-£450/day for senior developers. Indian agencies range from £100-£250/day. The quality variance is enormous though, and I'd strongly recommend thorough vetting and a trial engagement before committing to a full migration.

At Social Animal, our blended rates for Next.js migration projects fall within the mid-to-upper UK range, reflecting the seniority of the team and the architectural complexity we typically handle.

Content Migration: The Hidden Money Pit

This is where I've seen the most budget overruns. Every single time.

Drupal stores content in a way that's... uniquely Drupal. If you've used Paragraphs or Layout Builder, your content is deeply nested in entity references. A single "page" might actually be 15 different paragraph entities with their own fields, media references, and revision history.

Migrating this content to a headless CMS requires:

1. Content Model Mapping

You need to map every Drupal content type, field, taxonomy, and paragraph type to your new CMS structure. This is design work, not just technical work. It's your chance to simplify and clean up years of accumulated content cruft.

2. Migration Scripts

Someone needs to write scripts that extract content from Drupal's database (or JSON:API/GraphQL endpoints) and push it into the new CMS. For a site with custom paragraph types, this gets complex fast.

# Simplified example: extracting Drupal paragraphs via JSON:API
import requests

def extract_paragraph_content(node_id, drupal_base_url):
    response = requests.get(
        f"{drupal_base_url}/jsonapi/node/article/{node_id}"
        "?include=field_paragraphs,field_paragraphs.field_image",
        headers={"Accept": "application/vnd.api+json"}
    )
    data = response.json()
    
    paragraphs = []
    for item in data.get("included", []):
        if item["type"].startswith("paragraph--"):
            paragraphs.append({
                "type": item["type"].replace("paragraph--", ""),
                "fields": item["attributes"],
                "relationships": item.get("relationships", {})
            })
    
    return paragraphs

In reality, this gets much messier. You're dealing with embedded media, internal links that need URL remapping, WYSIWYG content with Drupal-specific markup, and potentially thousands of files that need to move to a new asset pipeline.

3. Media Migration

Drupal's media system stores files in sites/default/files with its own path structure. Every image, document, and video needs to be migrated to your new hosting (S3, Cloudinary, whatever) and all references updated. For a site with 5,000+ media items, this alone can cost £3,000-£8,000 / $4,000-$10,000.

4. URL Redirects

If your Drupal site used Pathauto (most do), you've got a URL structure that search engines know and trust. You need a complete redirect map. For large sites, this means extracting every URL alias from Drupal and creating corresponding redirects in your Next.js app.

// next.config.js redirect example (for smaller sites)
const nextConfig = {
  async redirects() {
    // For large sites, load from a database or JSON file
    const drupalRedirects = await loadRedirectMap();
    return drupalRedirects.map(({ source, destination }) => ({
      source,
      destination,
      permanent: true, // 301 redirect
    }));
  },
};

For enterprise sites with 10,000+ URLs, you'll want middleware-level redirects or an edge function approach to avoid bloating your Next.js config.

The Developer Shortage Problem

Here's something that directly affects your budget: finding developers who understand both Drupal and modern headless architecture is genuinely difficult in 2026.

The Drupal talent pool peaked around 2018-2019. Since then, many senior Drupal developers have transitioned to other frameworks or moved into management. The 2025 Stack Overflow Developer Survey showed Drupal usage among professional developers at roughly 3.2%, down from 5.8% in 2020.

Meanwhile, Next.js developers are abundant but rarely have Drupal experience. This creates a skills gap right where you need it most: the migration itself. You need someone who deeply understands Drupal's data model to properly extract and transform content.

This shortage drives costs up in two ways:

  1. Drupal migration specialists command premium rates. A developer who can write Drupal migration scripts and architect the Next.js destination is billing £700-£900/day in the UK.
  2. Projects take longer when the team needs to reverse-engineer an unfamiliar Drupal setup. If nobody on the team has worked with Paragraphs or Layout Builder before, expect a 2-3 week learning curve.

This is one area where working with a headless CMS development agency that's done these migrations before pays for itself pretty quickly.

Headless CMS + Supabase: An Alternative Architecture

A lot of Drupal-to-Next.js migrations assume you'll replace Drupal with another headless CMS -- Sanity, Contentful, Storyblok, or even Drupal itself running headless. But there's an increasingly popular alternative: using Supabase as your backend.

Supabase gives you a Postgres database, authentication, file storage, and auto-generated APIs. For teams that want more control over their data model without the constraints of a traditional CMS, it's compelling.

When Supabase Makes Sense

  • Your content is heavily structured/relational (product catalogs, directories, data-heavy applications)
  • You need custom user authentication and role-based access
  • Your editorial team is small and developer-savvy (or you'll build a custom admin UI)
  • You want to own your data infrastructure completely

When a Traditional Headless CMS is Better

  • Your editorial team is non-technical and needs a polished content editing experience
  • You have complex content workflows with approval chains
  • Content preview and visual editing are important
  • You want to get up and running faster

Cost Comparison: Headless CMS vs Supabase

Factor Headless CMS (e.g., Sanity) Supabase
Platform cost (annual) £0 - £12,000+ £0 - £3,000
Content editor UX Excellent out of the box Requires custom admin panel
Custom admin panel development Not needed £8,000 - £25,000
API development Included Auto-generated + custom
Authentication Third-party needed Built-in
File storage Included (CDN) Included (S3-compatible)
Real-time features Limited Built-in
Lock-in risk Medium (proprietary APIs) Low (standard Postgres)

The irony is that Supabase can be cheaper long-term but more expensive upfront because you're building the editorial experience from scratch. For content-heavy sites migrating from Drupal, a traditional headless CMS usually makes more sense. For application-heavy sites, Supabase is worth serious consideration.

We've built both types of architecture. Our Next.js development capability covers both headless CMS integrations and custom Supabase backends.

Total Cost of Ownership: Drupal vs Next.js (5-Year Comparison)

The migration cost is a one-time hit. What matters more for most organisations is the ongoing cost. Here's a realistic 5-year TCO comparison for a medium-complexity site.

Cost Category Drupal (Traditional) Next.js + Headless CMS
Initial build/migration £0 (already built) £40,000 - £75,000
Hosting (annual) £3,000 - £8,000 (dedicated/managed) £600 - £2,400 (Vercel/Netlify)
CMS platform (annual) £0 (open source) £0 - £6,000 (depends on CMS)
Security updates (annual) £4,000 - £10,000 £1,000 - £3,000
Feature development (annual) £8,000 - £20,000 £6,000 - £15,000
Drupal upgrades (per major version) £8,000 - £25,000 N/A
Performance optimization £2,000 - £5,000/year £500 - £2,000/year
5-Year Total £85,000 - £240,000 £78,000 - £177,000

A few things jump out:

Hosting is dramatically cheaper. A Next.js site on Vercel costs a fraction of managed Drupal hosting. Drupal needs PHP, a database server, caching layers (Varnish, Redis), and significantly more compute. A statically-generated or ISR Next.js site can run on edge infrastructure for peanuts.

Security maintenance is cheaper. Drupal's security team is good, but every security advisory means someone needs to apply patches, test, and deploy. A headless frontend with a managed CMS has a much smaller attack surface.

Developer costs are where it evens out. Next.js developers are easier to find, but the ecosystem moves fast. You'll spend time keeping up with Next.js versions, React updates, and framework changes. The good news is that the talent pool is large enough that you're not held hostage by a single specialist.

The breakeven point for most medium-complexity sites is around 18-30 months after migration, depending on your current Drupal hosting and maintenance costs.

Timeline Expectations

Every agency will tell you a timeline in the sales process, and most of them will be wrong. Here's what I've actually seen:

Small Site (10-50 pages)

  • Optimistic: 6 weeks
  • Realistic: 8-12 weeks
  • What goes wrong: Content migration takes longer than expected, stakeholder review cycles add 2-3 weeks

Medium Site (50-500 pages)

  • Optimistic: 10 weeks
  • Realistic: 14-20 weeks
  • What goes wrong: Integration complexity is underestimated, content model needs revision mid-project, design iterations

Enterprise Site (500+ pages)

  • Optimistic: 4 months
  • Realistic: 6-10 months
  • What goes wrong: Everything. Stakeholder alignment, legacy system dependencies, content governance decisions, security reviews, accessibility audits

The number one cause of delays isn't technical -- it's decision-making. The migration forces you to make choices about content structure, design systems, and editorial workflows that might have been deferred for years. Build in buffer for those conversations.

How to Budget Without Getting Burned

After seeing too many migrations go over budget, here's my practical advice:

  1. Pay for a proper discovery phase. Spend £3,000-£8,000 / $4,000-$10,000 on a 2-3 week discovery before committing to a full build. This should give you a content audit, technical architecture recommendation, and a much tighter cost estimate.

  2. Budget 20% contingency. Not 10%. Twenty. Content migration surprises are almost guaranteed.

  3. Don't migrate everything. Most Drupal sites have accumulated years of content that nobody reads. Use your analytics. If a page hasn't had a visit in 12 months, question whether it needs to migrate at all.

  4. Consider a phased approach. Migrate the marketing site first, then the blog, then the complex application features. This spreads cost and reduces risk.

  5. Get your editorial team involved early. The most expensive change requests come from editors who see the new CMS for the first time at UAT and say "I can't do my job with this."

If you're in the early stages of planning a migration, we're happy to have a no-obligation conversation about scope and budget. Get in touch and we can walk through your specific situation.

FAQ

How much does it cost to migrate from Drupal to Next.js in 2026? For a small site (under 50 pages), expect £12,000-£30,000 / $15,000-$40,000. Medium sites with integrations run £30,000-£75,000 / $40,000-$95,000. Enterprise migrations with complex content models, e-commerce, or multilingual support start at £75,000 / $95,000 and can exceed £200,000 / $250,000. These ranges assume a professional agency engagement in the UK or US.

Is it cheaper to upgrade Drupal or migrate to Next.js? A Drupal 7 to Drupal 10/11 upgrade often costs 60-80% of what a new Next.js build costs, since it's essentially a rebuild anyway. The difference is in long-term costs: Next.js hosting is cheaper, developer availability is better, and you avoid the next major Drupal upgrade cycle. For Drupal 9/10 sites that just need a frontend refresh, staying on Drupal is usually cheaper short-term.

How long does a Drupal to Next.js migration take? Small sites take 8-12 weeks realistically. Medium sites take 14-20 weeks. Enterprise sites take 6-10 months. The biggest variable isn't the code -- it's content migration, stakeholder alignment, and integration complexity. Always add 20% buffer to whatever timeline your agency quotes.

Can I use Drupal as a headless CMS with Next.js? Yes, and it's a valid approach if your team already knows Drupal. Drupal's JSON:API and GraphQL modules work well for headless delivery. The downside is you still need Drupal hosting, security patches, and PHP developers. Many teams choose this as an interim step before eventually moving to a purpose-built headless CMS.

What's the best headless CMS to replace Drupal? It depends on your needs. Sanity is excellent for developer-heavy teams and custom content models. Contentful works well for enterprise teams with structured workflows. Storyblok is strong for visual editing. For simpler sites, even Payload CMS or Strapi (self-hosted, open source) can work. There's no universal answer -- it depends on your editorial workflow, budget, and technical preferences.

Should I use Supabase instead of a headless CMS? Supabase makes sense when your site is more application than content -- think directories, dashboards, user-generated content, or complex relational data. For traditional content publishing (articles, pages, media), a purpose-built headless CMS provides a better editorial experience out of the box. Some projects use both: a headless CMS for content and Supabase for application data and authentication.

Are UK agency rates cheaper than US rates for Next.js development? Generally yes, by about 15-20% on average. UK senior Next.js developers typically bill £500-£800/day, while US equivalents charge $150-$250/hour ($1,200-$2,000/day). However, London agencies with enterprise clients often match US pricing. The best value often comes from specialist headless agencies rather than large full-service shops, regardless of location.

What are the hidden costs of migrating from Drupal to Next.js? The most commonly overlooked costs are: content migration scripting (especially for Paragraphs/Layout Builder content), URL redirect mapping and SEO preservation, media asset migration and CDN setup, editorial training on the new CMS, accessibility testing and remediation, and post-launch performance tuning. Budget at least 20% above your quoted price to cover these.