Best Open Source CMS: Ghost, Strapi, Directus, and More
Not all CMSs are built the same. Ghost excels at publishing. Strapi powers headless APIs. Directus wraps existing databases. Choose the right platform for your team's needs, then decide between self-hosting and managed options.
Which CMS is best depends entirely on what you are building.
Open-source CMS platforms fall into two broad camps: all-in-one systems (best for publishing, content APIs, simple sites) and headless CMSs (best for custom applications, mobile apps, decoupled frontends).
Within each camp, projects differ on ease of setup, team size, programming language, and target use cases. This guide compares the six most active and production-ready open-source platforms, with honest pros and cons for each.
All-In-One CMS
Ghost - Publishing with native email and memberships. Best for independent writers, newsletters, and membership sites. $18-199/mo managed, or free to self-host.
WordPress - 40% of the web. Massive ecosystem, but plugin sprawl and security vulnerabilities. PHP-based, 70,000+ plugins to manage.
Drupal - Enterprise-grade multi-site management. Best for government, large organizations, complex workflows. Requires PHP and architectural expertise.
Headless CMS (API-First)
Strapi - Most popular: 73.4K GitHub stars. REST + GraphQL APIs auto-generated from schema. Visual admin panel, large plugin ecosystem. Self-hosted or Strapi Cloud.
Payload CMS - TypeScript-first, schema-as-code, native Next.js integration. Best for teams writing code. 45.5K stars, fastest-growing option.
Directus - Wraps existing SQL databases to create instant APIs. No schema migration needed. Works with Postgres, MySQL, MariaDB. 38.7K stars.
Ghost: The Default Choice for Independent Publishers
Ghost is built specifically for writers, newsletter creators, and membership businesses. Unlike general-purpose CMSs, it strips away everything except what writers actually need.
Core strengths:
- Distraction-free editor with rich embeds and full-screen mode
- Native email system built-in (eliminate Mailchimp)
- Tiered membership system with Stripe integration
- Zero platform fees on member revenue (huge vs. Substack's 10%)
- Automatic SEO: canonical URLs, structured data, XML sitemaps
- Monthly releases with active core team
- Excellent performance: Node.js backend, built-in caching
Pricing: Ghost(Pro) starts at $18/mo (annual) for 1,000 members, scaling to $199/mo for 10,000 members and advanced features. Self-hosted Ghost is free software; you pay for hosting and email delivery separately (~$5-20/mo).
Setup effort: Self-hosting Ghost requires Node.js, MySQL, and a reverse proxy - moderate difficulty. Opsily's managed Ghost eliminates all infrastructure work: flat-rate pricing, automatic backups, SSL certificates, and scaling built-in.
Best for: Independent writers, publishers, Substack alternatives, newsletter businesses, membership sites.
Strapi: The Most Popular Open-Source Headless CMS
Strapi powers API-first applications: mobile apps, custom frontends, static site generators, and anywhere you need content delivered over REST or GraphQL.
Core strengths:
- 73.4K GitHub stars: largest community among open-source headless CMSs
- REST and GraphQL APIs auto-generated from content schema
- Visual content type builder - non-developers can design content structure
- Role-based access control: per-content-type, per-field permissions
- Draft, publish, and scheduling workflows
- Built-in media library with image transformation
- 100+ plugins: webhooks, email, authentication, analytics
- Internationalization and multi-locale support out-of-the-box
Pricing: Free to self-host (MIT license). Strapi Cloud offers managed hosting (pricing not publicly detailed). Self-hosted cost: ~$10-30/mo on a basic VPS with PostgreSQL.
Setup effort: Docker Compose or any Node.js host. Configuration changes require server restart (production limitation).
Best for: Teams building custom applications, SPA frontends (React, Vue, Next.js), mobile app backends, content APIs that scale.
Directus: Database-Driven CMS
If you already have a SQL database, Directus wraps it with instant REST and GraphQL APIs, plus a visual admin interface - no schema migration needed.
Core strengths:
- Works with existing databases: Postgres, MySQL, MariaDB, MS SQL, SQLite, Oracle, CockroachDB
- Instant REST and GraphQL APIs from your database schema
- No-code/low-code admin UI (Visual Studio)
- Granular field-level access control
- AI Assistant for content workflows
- Native MCP Server: connect Claude, Cursor, ChatGPT directly to your data
- 38.7K GitHub stars, 45M+ npm downloads, 500K+ deployed projects
Pricing: Free tier for organizations under $5M revenue and 50 employees (Open Innovation Grant). Directus Cloud available for managed hosting. Self-hosted is free (MIT license with MSCL 1.0 source-available licensing).
Setup effort: Requires existing SQL database. Provides instant API layer - no additional API coding. Directus Cloud provisions fully-managed projects in ~90 seconds.
Best for: Projects with existing SQL infrastructure, teams wanting instant APIs without coding, database-first architectures, rapid API prototyping.
Payload CMS: Schema-as-Code for TypeScript and Next.js
Payload is built for developers who write code and want full type safety: schema, access control, and hooks all defined in TypeScript.
Core strengths:
- 45.5K GitHub stars (fastest-growing of the group)
- TypeScript-first: schema, fields, and access control defined in code
- Native Next.js v3 integration: runs inside the /app folder
- REST and GraphQL APIs with full TypeScript types
- Lexical rich text editor (modern block-based editor)
- Query database directly in React Server Components
- Row-level, field-level, and operation-level access control as functions
- Hooks system (beforeChange, afterRead, etc.) for custom logic
- MIT license, self-hosted on Vercel, Cloudflare, or any Node.js server
Pricing: Free to self-host. Payload Cloud offers managed hosting (pricing not publicly detailed). Self-hosted cost: ~$10-20/mo on Vercel or a small Node.js host with Neon PostgreSQL.
Setup effort: Requires TypeScript and Node.js knowledge. Schema lives in code (version-controlled). Vercel or Cloudflare deployment: <5 minutes.
Best for: Next.js teams, TypeScript-first projects, startups building modern web apps, teams that want schema version-controlled and type-safe.
WordPress and Drupal: A Broader Perspective
WordPress powers 40% of the web. It is the most popular CMS overall, with an enormous ecosystem: 70,000+ plugins, 20,000+ themes, global hosting providers. But this scale comes with trade-offs. Plugin sprawl creates security vulnerabilities (90% of hacked CMS sites run WordPress). The PHP codebase was designed in 2003 and is challenging for modern API-first applications.
Drupal is the enterprise standard: used by governments, universities, and Fortune 500 companies. It excels at multi-site management, granular permissions, complex editorial workflows, and formal security processes. But it has the steepest learning curve among CMSs and is overkill for small blogs.
If you are evaluating WordPress today, consider whether a modern alternative (Ghost for publishing, Strapi for APIs, Directus for database-driven apps) might better match your actual needs.
Why Ghost is the Best Open Source CMS for Publishers
Self-hosting Ghost is free. But free software does not mean free operations.
Flat-rate pricing with zero per-member fees
Ghost(Pro) charges differently for each tier of members. Opsily's managed Ghost costs the same whether you have 100 or 10,000 subscribers. No surprise bills as your audience grows. And unlike Substack, Opsily takes no cut of your member revenue.
Backups, SSL, updates, and scaling handled
Self-hosted Ghost means you manage PostgreSQL, SSL certificates, security patches, and server scaling. Opsily handles all of this automatically. You write; we handle operations.
GDPR-compliant German data centers
Your publication data stays in German data centers certified to ISO 27001. No vendor lock-in: you can export your entire publication as JSON and move anytime.
Built for teams who need reliability
Getting Started with Ghost on Opsily
From sign-up to first post in minutes, not hours.
Sign up with email. No credit card required for the free trial.
Select Ghost from the app catalog and click Install. Opsily provisions your instance in seconds.
Set your title, tagline, membership tiers, and email settings. Write your first post using Ghost's distraction-free editor.
Sign up with email. No credit card required for the free trial.
Select Ghost from the app catalog and click Install. Opsily provisions your instance in seconds.
Set your title, tagline, membership tiers, and email settings. Write your first post using Ghost's distraction-free editor.
Create your Opsily account
Sign up with email. No credit card required for the free trial.
Deploy Ghost
Select Ghost from the app catalog and click Install. Opsily provisions your instance in seconds.
Configure your publication
Set your title, tagline, membership tiers, and email settings. Write your first post using Ghost's distraction-free editor.
Invite your team
Add editors, authors, and administrators. Control who can publish, who can draft, and who manages members.
Frequently Asked Questions
Everything you need to know about choosing and hosting an open-source CMS.
Ghost is the default. It is built specifically for writers, newsletter creators, and membership businesses. If you are moving from Substack, Beehiiv, or Medium, Ghost offers a cleaner writing experience, native email, tiered membership, and zero platform fees on reader revenue. Other CMSs (WordPress, Strapi, Directus) do publishing, but they are optimized for other use cases and add complexity you do not need.
Ready to launch or migrate your publication?
Start with Opsily's managed Ghost hosting. Flat-rate pricing, zero ops work, and your data stays yours.