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Headless CMS Comparison 2026: WordPress, Sanity, Strapi, Contentful, or Custom?

WordPress, Sanity, Contentful, Strapi, or custom Next.js + Prisma? The right CMS depends on content complexity, not preference. This guide gives you an 8-question decision matrix, 3-year TCO comparison, hidden costs, and migration paths for each approach.

📖 15 min read
Headless CMS comparison spectrum showing WordPress, Sanity, Contentful, Strapi, and Custom by content complexity

"Should we build a custom CMS or use WordPress/Sanity/Contentful?" The answer depends on one question: **Does your content have complex relationships, or is it mostly pages and posts?**

This guide gives you a decision framework for 2026, covering cms-comparison-wordpress-sanity-strapi-2026" class="internal-link">headless CMS options, when to build custom, and the hidden costs of each path.

The CMS Spectrum

┌─────────────────────────────────────────────────────────────────────────────┐
│                        CONTENT COMPLEXITY                                     │
├─────────────────────────────────────────────────────────────────────────────┤
│                                                                             │
│  SIMPLE                                                                    │
│  Pages, Posts, Basic Fields                                                │
│  │                                                                          │
│  ▼                                                                          │
│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐       │
│  │   WordPress │  │   Ghost     │  │  Netlify    │  │  TinaCMS    │       │
│  │  (Block     │  │  (Newsletter│  │  CMS /      │  │  (Git-based)│       │
│  │   Editor)   │  │   + Blog)   │  │  CloudCannon│  │             │       │
│  └─────────────┘  └─────────────┘  └─────────────┘  └─────────────┘       │
│         │               │               │               │                   │
│         ▼               ▼               ▼               ▼                   │
│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐       │
│  │   Sanity    │  │  Contentful │  │  Strapi     │  │  Directus   │       │
│  │  (Structured│  │  (Enterprise│  │  (Self-host│  │  (Self-host│       │
│  │   Content)  │  │   Scale)    │  │   Control)  │  │   + Admin)  │       │
│  └─────────────┘  └─────────────┘  └─────────────┘  └─────────────┘       │
│         │               │               │               │                   │
│         ▼               ▼               ▼               ▼                   │
│  ┌─────────────────────────────────────────────────────────────┐           │
│  │                    CUSTOM (Next.js + DB + Admin)            │           │
│  │  Content = Product Data, Complex Relationships, Real-time  │           │
│  └─────────────────────────────────────────────────────────────┘           │
│                                                                             │
│  COMPLEX                                                                    │
│  Nested Relations, Localization, Workflows, Real-time, Multi-channel       │
│                                                                             │
└─────────────────────────────────────────────────────────────────────────────┘

---

Decision Matrix: 8 Questions

| Question | WordPress | Sanity/Contentful | Strapi/Directus | Custom | |----------|-----------|-------------------|-----------------|--------| | **Content type** | Pages, blog, simple CPTs | Structured, portable text | Structured, relational | Product data, user-gen, real-time | | **Team** | Marketing (non-tech) | Content + Dev | Dev-heavy | Engineering team | | **Editing** | Visual (blocks) | Structured + Visual (Sanity Studio) | Admin panel | Custom admin | | **Scale** | <100K pages | Millions of docs | 100K-1M docs | Unlimited | | **Hosting** | Managed (WP Engine, Kinsta) | SaaS (Sanity, Contentful) | Self-hosted (you manage) | Self-hosted | | **Cost (Year 1)** | ₹2-8L | ₹5-20L | ₹3-10L (dev + infra) | ₹15-50L+ | | **Time to launch** | 2-6 weeks | 4-10 weeks | 6-14 weeks | 12-24 weeks | | **Lock-in** | Low (export WXR) | Medium (API) | Low (own data) | None |

---

Option 1: WordPress (Block Editor + Headless)

When to Choose

  • Marketing site + blog + simple landing pages
  • Team knows WordPress, wants visual editing
  • Budget-conscious, need standard features (forms, SEO, analytics)
  • Can accept PHP stack or headless via WPGraphQL

2026 WordPress Stack

# Modern WordPress (not your 2015 WP)
Core: WordPress 6.5+ (Block Editor, Full Site Editing)
Theme: Block Theme (Twenty Twenty-Four based) or Headless
Editor: Gutenberg + ACF Blocks (for custom blocks)
Headless: WPGraphQL + Next.js frontend
Hosting: Kinsta / WP Engine / Cloudways (Redis, CDN, edge)
Plugins (minimal):
  • ACF PRO (custom fields)
  • WPGraphQL (headless API)
  • Yoast/RankMath (SEO)
  • WP Rocket / Perfmatters (performance)
  • Wordfence (security)

Pros/Cons

| Pros | Cons | |------|------| | Largest ecosystem, huge talent pool | PHP runtime, plugin debt | | Visual editing (blocks, patterns) | Not great for complex relations | | Mature plugins for everything | cms-comparison-wordpress-sanity-strapi-2026" class="internal-link">Headless preview setup complex | | Low initial cost | Scaling requires enterprise hosting | | Client-friendly admin | Gutenberg still evolving |

---

Option 2: Sanity (Structured Content Platform)

When to Choose

  • Content is **structured** (products, events, people, case studies)
  • Need **portable text** (rich text as JSON, not HTML)
  • Multi-channel: web, app, email, print, voice
  • Team: Content editors + Developers (collaborative)
  • Need **real-time collaboration**, visual editing (Sanity Studio)

Sanity Architecture

┌─────────────┐     ┌─────────────┐     ┌─────────────┐
│  Sanity     │────▶│  GROQ API   │────▶│  Next.js    │
│  Studio     │     │  (GraphQL   │     │  / Astro    │
│  (Editor)   │     │   optional) │     │  (Frontend) │
└─────────────┘     └─────────────┘     └─────────────┘
      │                   │                   │
      ▼                   ▼                   ▼
  • Real-time - Powerful - ISR/SSR
  • Custom schemas - Portable text - Image pipeline
  • Visual editing - CDN cached - Type-safe
  • Workflows - Webhooks - Preview mode

Schema Example

// schemas/caseStudy.js
export default {
  name: 'caseStudy',
  title: 'Case Study',
  type: 'document',
  fields: [
    { name: 'title', type: 'string', validation: Rule => Rule.required() },
    { name: 'slug', type: 'slug', options: { source: 'title' } },
    { name: 'client', type: 'reference', to: [{ type: 'client' }] },
    { name: 'industry', type: 'string', options: { list: ['fintech', 'healthcare', 'saas'] } },
    { name: 'heroImage', type: 'image', options: { hotspot: true } },
    { name: 'overview', type: 'text', rows: 4 },
    { name: 'challenge', type: 'array', of: [{ type: 'block' }] }, // Portable text
    { name: 'solution', type: 'array', of: [{ type: 'block' }] },
    { name: 'results', type: 'array', of: [
      { type: 'object', fields: [
        { name: 'metric', type: 'string' },
        { name: 'value', type: 'string' },
        { name: 'description', type: 'text' }
      ]}
    ]},
    { name: 'technologies', type: 'array', of: [{ type: 'reference', to: [{ type: 'technology' }] }] },
    { name: 'publishedAt', type: 'datetime' },
    { name: 'seo', type: 'seoFields' } // Reusable object
  ],
  preview: { select: { title: 'title', media: 'heroImage', client: 'client.name' } }
};

GROQ Query (Powerful, Fast)

// Get case studies with client + tech, filtered, projected
*[_type == "caseStudy" && publishedAt < now() && "fintech" in industries] 
| order(publishedAt desc) [0...10] {
  _id,
  title,
  slug,
  "client": client->{name, logo},
  "hero": heroImage.asset->url,
  "tech": technologies[]->name,
  publishedAt
}

Pros/Cons

| Pros | Cons | |------|------| | Best portable text handling | Learning curve (GROQ, schemas) | | Real-time collaboration | SaaS cost at scale | | Visual editing (Presentation) | Vendor lock-in (but exportable) | | Powerful query language (GROQ) | Not ideal for simple blogs | | Excellent image pipeline | Custom workflows need setup | | Great DX, TypeScript SDK | |

---

Option 3: Contentful (Enterprise Scale)

When to Choose

  • Enterprise scale (millions of entries, global team)
  • Complex workflows, approval chains, compliance
  • Need strong SLA, dedicated support
  • Multi-brand, multi-language, multi-region

Trade-offs

| Pros | Cons | |------|------| | Enterprise-grade, battle-tested | Expensive (starts ~$3K/mo) | | Powerful content modeling | Rich text = proprietary format | | Granular permissions, workflows | Heavier API, less flexible queries | | Global CDN, 99.99% SLA | redesign-checklist-50-steps" class="internal-link">Migration difficult | | Strong partner ecosystem | Overkill for most projects |

---

Option 4: Strapi / Directus / Payload (Self-Hosted Headless)

When to Choose

  • Want **full control** (data, hosting, customization)
  • Team has **backend capacity** (DevOps, security, updates)
  • Need **custom admin workflows** beyond CMS capabilities
  • Budget favors dev time over SaaS fees

Comparison

| Feature | Strapi v5 | Directus | Payload | |---------|-----------|----------|---------| | **Language** | TypeScript/JS | TypeScript/Vue | TypeScript/React | | **Admin** | React (customizable) | Vue (highly customizable) | React (code-first) | | **Database** | SQL (PostgreSQL, MySQL) | SQL (any) | PostgreSQL / MongoDB | | **API** | REST + GraphQL | REST + GraphQL | REST + GraphQL + Local | | **Auth** | Built-in (JWT, providers) | Built-in (SSO, 2FA) | Built-in (extensible) | | **Plugins** | Large ecosystem | Growing | Smaller, quality | | **Hosting** | Any Node host | Any Node host | Any Node host (Vercel OK) | | **Best for** | Traditional CMS needs | Data-first, internal tools | Developer-first, custom apps |

Strapi v5 Example (TypeScript)

// src/api/case-study/content-types/case-study/schema.json
{
  "kind": "collectionType",
  "collectionName": "case_studies",
  "info": { "singularName": "case-study", "pluralName": "case-studies" },
  "options": { "draftAndPublish": true },
  "pluginOptions": { "content-manager": { "visible": true } },
  "attributes": {
    "title": { "type": "string", "required": true, "unique": true },
    "slug": { "type": "uid", "targetField": "title" },
    "client": { "type": "relation", "relation": "manyToOne", "target": "api::client.client" },
    "heroImage": { "type": "media", "multiple": false },
    "content": { "type": "blocks" }, // Rich text
    "results": { "type": "component", "component": "shared.metric", "repeatable": true },
    "technologies": { "type": "relation", "relation": "manyToMany", "target": "api::technology.technology" },
    "seo": { "type": "component", "component": "shared.seo", "repeatable": false }
  }
}

Pros/Cons (Self-Hosted)

| Pros | Cons | |------|------| | Zero vendor lock-in | You own uptime, security, updates | | Full customization | DevOps overhead (20-30% dev time) | | Data on your infra | No managed scaling | | No per-seat/API-call costs | Admin UI less polished than SaaS | | Extend with custom code | Plugin compatibility on upgrades |

---

Option 5: Custom (Next.js + Database + Admin UI)

When to Choose

  • **Content = Product Data** (e-commerce, SaaS, marketplace)
  • Complex relationships: Users ↔ Projects ↔ Tasks ↔ Comments ↔ Files
  • Real-time features: Collaborative editing, presence, notifications
  • Need **type-safe end-to-end** (DB → API → Frontend)
  • Building a **product**, not a marketing site

Modern Custom Stack (2026)

┌─────────────────────────────────────────────────────────────┐
│                      NEXT.JS APP ROUTER                      │
│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐          │
│  │  Server     │  │  Client     │  │  Admin UI   │          │
│  │  Components │  │  Components │  │  (Separate  │          │
│  │  (RSC)      │  │  (Interact) │  │   Route)    │          │
│  └──────┬──────┘  └──────┬──────┘  └──────┬──────┘          │
│         │                │                │                  │
│         ▼                ▼                ▼                  │
│  ┌─────────────────────────────────────────────┐            │
│  │              TANSTACK QUERY                 │            │
│  │         (Server State Management)           │            │
│  └────────────────────┬────────────────────────┘            │
│                       │                                     │
│                       ▼                                     │
│  ┌─────────────────────────────────────────────┐            │
│  │              tRPC / GraphQL                  │            │
│  │         (End-to-End Type Safety)            │            │
│  └────────────────────┬────────────────────────┘            │
│                       │                                     │
│                       ▼                                     │
│  ┌─────────────────────────────────────────────┐            │
│  │           PRISMA ORM + POSTGRESQL           │            │
│  │     (Type-Safe DB Access + Migrations)      │            │
│  └─────────────────────────────────────────────┘            │
└─────────────────────────────────────────────────────────────┘

Prisma Schema (Source of Truth)

// prisma/schema.prisma
generator client { provider = "prisma-client-js" }
datasource db { provider = "postgresql", url = env("DATABASE_URL") }

model CaseStudy { id String @id @default(cuid()) title String @unique slug String @unique client Client @relation(fields: [clientId], references: [id]) clientId String heroImage String? overview String? @db.Text challenge Json // Portable text (TipTap/Slate JSON) solution Json results Metric[] technologies Technology[] publishedAt DateTime? seo Seo? @relation(fields: [seoId], references: [id]) seoId String? createdAt DateTime @default(now()) updatedAt DateTime @updatedAt @@index([publishedAt]) }

model Metric { id String @id @default(cuid()) metric String value String description String? @db.Text caseStudy CaseStudy @relation(fields: [caseStudyId], references: [id]) caseStudyId String }

tRPC Router (Type-Safe API)

// server/routers/caseStudy.ts
import { z } from 'zod';
import { createTRPCRouter, publicProcedure, protectedProcedure } from '../trpc';

export const caseStudyRouter = createTRPCRouter({ list: publicProcedure .input(z.object({ limit: z.number().default(10), cursor: z.string().optional() })) .query(async ({ ctx, input }) => { return ctx.prisma.caseStudy.findMany({ take: input.limit + 1, cursor: input.cursor ? { id: input.cursor } : undefined, where: { publishedAt: { lte: new Date() } }, orderBy: { publishedAt: 'desc' }, include: { client: true, technologies: true }, }); }),

bySlug: publicProcedure .input(z.object({ slug: z.string() })) .query(async ({ ctx, input }) => { return ctx.prisma.caseStudy.findUnique({ where: { slug: input.slug }, include: { client: true, technologies: true, results: true, seo: true }, }); }),

create: protectedProcedure .input(z.object({ title: z.string().min(3), clientId: z.string(), heroImage: z.string().url().optional(), // ... other fields })) .mutation(async ({ ctx, input }) => { return ctx.prisma.caseStudy.create({ data: input }); }), });

Admin UI Options

| Option | Best For | Effort | |--------|----------|--------| | **AdminJS** | Quick admin, auto-generated from Prisma | Low | | **Keystatic** | Git-based, local-first, Next.js native | Low-Medium | | **Payload CMS** | Custom admin as code, React-based | Medium | | **Custom (shadcn/ui + TanStack Table)** | Full control, matches your design system | High |

---

Cost Comparison: 3-Year TCO (Estimated)

| Approach | Year 1 Build | Year 1 Ops | Year 2 Ops | Year 3 Ops | 3-Year Total | |----------|--------------|------------|------------|------------|--------------| | WordPress (Agency) | ₹5L | ₹1.5L | ₹1.5L | ₹1.5L | ₹9.5L | | WordPress (In-house) | ₹3L | ₹0.5L | ₹0.5L | ₹0.5L | ₹4.5L | | Sanity (Growth Plan) | ₹8L | ₹12L | ₹15L | ₹18L | ₹53L | | Contentful (Team) | ₹10L | ₹36L | ₹36L | ₹36L | ₹118L | | Strapi (Self-hosted) | ₹12L | ₹6L | ₹6L | ₹6L | ₹30L | | Custom (Next.js + Prisma) | ₹25L | ₹8L | ₹8L | ₹8L | ₹49L |

*Assumes 50-page marketing site + blog + case studies. Ops = hosting, maintenance, SaaS fees, dev time.*

---

The Hidden Costs Nobody Talks About

| Cost | WordPress | SaaS (Sanity/Contentful) | Self-Hosted | Custom | |------|-----------|--------------------------|-------------|--------| | **Content redesign-checklist-50-steps" class="internal-link">Migration** | ₹1-3L | ₹2-5L | ₹2-5L | ₹3-8L | | **Editor Training** | Low (familiar) | Medium (new UI) | Medium | High | | **Preview/Staging** | Plugin config | Built-in (Sanity) | Custom setup | Custom build | | **Image Pipeline** | Plugins/CDN | Built-in (excellent) | Build/buy | Build/buy | | **Search** | Plugin (Relevanssi) | Built-in / Algolia | Meilisearch/Typesense | Meilisearch/Typesense | | **Localization** | WPML/Polylang (₹) | Built-in (Sanity) | Custom | Custom | | **Compliance/Audit** | Plugin ecosystem | SOC 2, HIPAA ready | You implement | You implement | | **Talent Pool** | Huge | Growing | Niche | React/Node devs |

---

Our Recommendation at UI Designer

| Project Profile | We Recommend | Why | |-----------------|--------------|-----| | Marketing site + blog, team knows WP | **WordPress (Block Theme)** | Fast, affordable, client-manageable | | Structured content, multi-channel, dev+content team | **Sanity** | Best editor + query + portable text | | Enterprise, compliance, scale | **Contentful** | SLA, workflows, support | | Team wants control, has DevOps | **Strapi / Payload** | Own data, full customization | | Building a product (SaaS, marketplace) | **Custom (Next.js + Prisma + tRPC)** | Type-safe, real-time, no CMS limits | | Marketing site, want Git-based, simple | **TinaCMS / Keystatic** | Visual editing, version control |

---

Migration Paths (You're Not Trapped)

WordPress → Sanity/Contentful

  1. Export WP content (WPGraphQL → scripts)
  2. Map to Sanity schemas / Contentful content types
  3. Build Next.js frontend consuming new API
  4. Run parallel, verify, switch DNS

SaaS → Self-Hosted

  1. Export all content (JSON/NDJSON)
  2. Transform to target schema
  3. Import to Strapi/Directus/Payload
  4. Update frontend API client

Custom → SaaS (Rare)

  1. Identify content types that *are* just content
  2. Export → Import to Sanity
  3. Keep product data in custom DB
  4. Hybrid: SaaS for marketing, Custom for product

---

The One Question That Decides

**"Is your content primarily *marketing pages* that editors write, or *structured data* that your application logic depends on?"**

  • **Marketing pages** → WordPress / Sanity / TinaCMS
  • **Structured data + logic** → Custom / Strapi / Payload

---

Next Steps

  1. **Take our CMS Diagnostic** (5 min): ui-designer.in/cms-diagnostic
  2. **Book a free architecture call** — we'll map your content model and recommend the right stack
  3. **Read our case studies** — see how similar projects chose and why

The best CMS is the one your content team actually uses — and your developers don't hate.

Frequently Asked Questions

Frequently Asked Questions

Can I use WordPress as a headless CMS with Next.js?
Yes. Use WPGraphQL or REST API with Next.js. WordPress 6.5+ has mature headless support. Preview mode works via the WP Headless plugin. Good for teams that know WordPress but want modern frontend.

Frequently Asked Questions

What's the real cost difference between Sanity and Contentful?
Sanity: Pay-as-you-go, generous free tier, ~$15-500/mo for most projects. Contentful: Starts ~$3K/mo for Team plan, enterprise pricing for scale. Sanity is 5-10x cheaper for equivalent usage.

Frequently Asked Questions

Do I need a headless CMS for a simple marketing site?
No. WordPress block theme, Webflow, Framer, or Astro + Markdown/MDX are simpler and cheaper. Headless CMS adds API complexity, preview setup, and hosting costs. Use headless when: multi-channel, complex content relationships, or dev team prefers code-first.

Frequently Asked Questions

Can I migrate from Contentful to Sanity later?
Yes. Export Contentful as JSON → transform to Sanity schemas → import via Sanity CLI. Content models map well. The hard part is retraining editors on new Studio UI. Plan 2-4 weeks for migration + training.

Frequently Asked Questions

What's the best CMS for a team with no developers?
WordPress (managed hosting) or Webflow/Framer. Non-technical editors get visual editing, plugin ecosystem, and huge talent pool. Avoid headless CMS — the preview/deploy pipeline requires dev support.

Frequently Asked Questions

Is self-hosted Strapi really "free"?
Software is free (MIT). But you pay for: hosting (VPS/Kubernetes), DevOps time (updates, security, backups), SSL, CDN, monitoring. At scale, self-hosted often costs more than SaaS. Choose self-hosted for control, not cost savings.

Frequently Asked Questions

What CMS do you recommend for a B2B SaaS marketing site?
Sanity or Contentful. Structured content (case studies, features, pricing tables), multi-language support, visual editing for marketers, great Next.js integration. WordPress works if team prefers PHP ecosystem.