AP
Apostrophe
MIT ·★ 4.6k
medium

Node.js CMS with in-context page editing, a structured content type system, and REST APIs. Built for agencies and teams that need editable, component-driven sites without a headless-only workflow

AU
Automad
MIT ·★ 898
easy

Flat-file PHP CMS with a built-in template engine. No database required — content lives in text files, editable through a browser-based dashboard with a live WYSIWYG editor

BC
Backdrop CMS
GPL-2.0 ·★ 1k
medium

GPL-2.0 Drupal 7 fork for small to medium sites. Keeps Drupal's content flexibility while reducing infrastructure complexity — no composer-first workflow, built-in layouts, and a gentler upgrade path

BC
BigTree CMS
LGPL-2.1 ·★ 222
easy

PHP/MySQL CMS focused on developer ergonomics. Modular field types, a clean admin UI, and multi-site support built in — designed to be straightforward to customise without a steep learning curve

BC
Bolt CMS
MIT ·★ 4.1k
medium

PHP CMS built on Symfony with YAML-defined content types, Twig templates, and a clean admin interface. Designed for developers who want a structured, opinionated foundation without the complexity of Drupal or the plugin sprawl of WordPress

CM
CMS Made Simple
GPL-3.0 ·★ N/A
easy

Lightweight PHP CMS for small to medium sites. Clean template system, a module ecosystem, and a straightforward admin interface — one of the longest-running open source CMSes, first released in 2004 and still actively maintained

CO
Cockpit
MIT ·★ 718
easy

Headless PHP CMS and content API. Define flexible content collections and singletons through a UI, then query them via REST or GraphQL. No rigid page structure — just a content backend your frontend consumes

CC
Concrete CMS
MIT ·★ 837
medium

PHP CMS with in-context page editing, a block-based content system, and built-in versioning. Editors update pages directly in the browser without switching to an admin panel — a long-standing alternative to WordPress for institutional and government sites

CO
Contao
LGPL-3.0 ·★ 426
medium

Symfony-based PHP CMS with fine-grained user permissions, built-in newsletter and event modules, and a structured page tree. Popular in German-speaking Europe for institutional and corporate sites requiring strict editorial control

CO
CouchCMS
LGPL-2.1 ·★ 373
easy

PHP CMS for designers that adds content management to existing HTML templates by embedding special tags. No rebuilding your site structure — paste in a few tags and your static pages become editable without rewriting the frontend

DI
Directus
BSL-1.1 ·★ 36k
medium

Open-source data platform that wraps any SQL database with an instant REST and GraphQL API plus a no-code admin app. Works with existing databases, not just new ones

DR
Drupal
GPL-2.0 ·★ 4.3k
hard

Enterprise-grade open-source CMS powering over 1.4 million websites including government portals, universities, and major media properties. Highly flexible with a strong security track record

EX
Expressa
MIT ·★ 448
medium

Node.js CMS and API framework that generates REST endpoints automatically from JSON Schema content type definitions. Define your data model in JSON, get a working API and admin panel with permission management included

GH
Ghost
MIT ·★ 53.7k
medium

Open-source publishing platform for newsletters, paid memberships, and blogs. Built-in Stripe payments, email delivery, and a clean editor. Self-hosting removes the per-member revenue cut that hosted platforms take

JO
Joomla!
GPL-2.0 ·★ 5.1k
medium

Mature open-source CMS powering 2% of the web. Flexible content structure with built-in multi-language support, user groups, and a large extension directory

KE
KeystoneJS
MIT ·★ 9.9k
medium

TypeScript-first Node.js CMS and application framework with a code-defined schema, auto-generated GraphQL API, and a polished admin UI. Built for developers who want a programmable content backend without writing CRUD from scratch

MO
MODX
GPL-2.0 ·★ 1.4k
medium

Developer-focused PHP CMS built for custom site architecture. No prescribed templates or content models — you build exactly what the project requires. Strong security track record and a long-standing reputation among agencies

NE
Neos
GPL-3.0 ·★ 265
hard

PHP CMS built on the Flow framework with a node-based content repository and in-context editing. Designed for editorial teams who need flexible content structures and developers who want a clean separation between content and presentation

ST
Strapi
MIT ·★ 72.3k
medium

Open-source headless CMS with a customisable content type builder, REST and GraphQL APIs, and a plugin marketplace. The most widely used self-hosted headless CMS

WO
WordPress
GPL-2.0 ·★ 21k
easy

The CMS powering 43% of the web. Self-hosted, GPL-licensed, with 60,000+ plugins, WooCommerce, and no platform fee. Requires active maintenance to stay secure