Concrete CMS vs Haven
Comparing two open source alternatives to Squarespace. Use the comparison below to decide which one fits your needs.
Concrete CMS
MITSelf-hosted PHP CMS with in-context page editing, drag-and-drop blocks, granular permissions and a marketplace of themes and add-ons. MIT licensed.
Side-by-side comparison
| Concrete CMS |  Haven | |
|---|---|---|
| License | MIT | MIT |
| Self-hostable | Yes | Yes |
| GitHub Stars | 852 | 811 |
| Forks | 491 | 48 |
| Open Issues | 484 | 18 |
| Last Commit | Oct 20, 2026 | Oct 4, 2026 |
| First Released | Apr 22, 2014 | Jan 19, 2021 |
| Categories | ||
| Tags |
Similar open source alternatives
Strapi
Open-source headless CMS on Node.js and TypeScript: visual content-type builder, auto-generated REST and GraphQL APIs, RBAC, i18n and plugins.
WordPress
EmDash
A full-stack TypeScript CMS built on Astro and Cloudflare, reimagining WordPress with serverless, type-safe foundations.
WordPress
FlatPress
FlatPress is a lightweight, easy-to-set-up flat-file blogging engine.
WordPress
Craft.js
React framework for building extensible drag-and-drop page editors. Headless, framework-based approach with full plugin support.
Builder.io
Ghost
Ghost is an independent open-source publishing platform for modern creators. Run blogs, newsletters, memberships, and paid subscriptions all in one beautifully designed place.
WordPress
Golocron
Golocron is a plug-and-play blogging and wiki system designed for Go backends. Markdown support, live preview, and a clean UI for quick content sites.
WordPress