WordPress itself is open source (GPL), but most people land on "WordPress alternatives" because of the ecosystem built around it — paid themes, plugins, and hosting, plus the operational overhead of managing plugin updates, security patches, and performance on a self-hosted install.
If your focus is publishing — newsletters, memberships, and a fast, distraction-free writing experience — Ghost is the open-source platform built specifically for that, trading WordPress's do-everything plugin ecosystem for a simpler, more opinionated publishing tool.
FAQ
Is there a free, open-source alternative to WordPress?
Yes. Ghost is open source (MIT) and free to self-host, focused specifically on publishing, newsletters, and memberships rather than general-purpose site building.
What's the best open-source alternative to WordPress?
Ghost is the best fit if your site is primarily a blog, newsletter, or membership publication — it trades WordPress's massive plugin ecosystem for a faster, more focused writing and publishing experience.
What are the top open-source alternatives to WordPress?
Browse all open-source alternatives to WordPress above, or explore the full Content Management category for more options.