Plenti Alternatives for Self-Hosted

Hugo is one of the most popular open-source static site generators. With its amazing speed and flexibility, Hugo makes building websites fun again. Hugo is the fastest tool of its kind, it generates pages at <1 ms per page, the average site builds in less than a second. Hugo also supports unlimited content types, taxonomies, menus, dynamic API-driven content, and more, all without plugins. Hugo is written in Go and released fully free and open-source under the Apache-2.0 License.

A fast, simple & powerful blog framework and static site generator powered by Node.js. With Hexo, you can quicly build static websites and blogs that generates at an increaible speed. Hexo generates hundreds of files per seconds and quickly builds and push your website to deployment, with a single command. You can have your site up and running in minutes on well known hosts and platforms like GitHub Pages, Heroku, Digital Ocean and other platforms. The framework support all features of  GitHub Flavored Markdown and most Octopress plugins by default. Hexo is released free and open-source under the MIT License.

Jekyll is a static site generator written in Ruby. With Jekyll, you can transform your plain text into static websites or blogs. No more database, and cumbersome updates and install, simply focus on your content. In Jekyll, permalinks categories, pages, posts, and custom layouts are factored into the design, so you can get started writing content, right away. For layouts and template, Jekyll uses the Liquid templating language which allow you to design and structure a site to your liking. In a nutshell Markdown, Liquid, HTML and CSS goes in, and out comes a static site ready for deployment.

Gatsby is a free and open source framework and site generator that helps developers to build blazing fast websites and apps. The framework is based on React and include a plugin ecosystem that can be used to extend the capabilities of Gatsby. With Gatsby you can pull data from headless CMSs, SaaS services, APIs, databases, even your file system with the help of GraphQL. If you are looking to build a fast website that scales with time, Gatsby might your best pick.

PyroCMS is a free and open-source Content Management System written in PHP on top the web development framework Laravel.

Strapi is a free and open source headless CMS developed with JavaScript for Node.js. The software makes it really simple to generate REST and GraphQL APIs. Simply create your database schema and relationships in the Strapi admin panel UI, and Strapi will auto-generate API endpoints to represent the data structures provided. Strapi comes packed with features you come to expect from normal CMS's such as authentication, authorization, content management and a media library. The software can be used for free and can be self-hosted on any server and platform. Extra enterpise functionallity is currently being developed, and will be sold at cost.

An open-source tool for managing content across all your omni-channel digital experiences. Directus is free and open-source headless CMS written in PHP, that takes a data first approach. Developers and content creators use Directus to manage content and generate a powerful API that can be used by any frontend technology. Directus can be self-hosted and is absolutely free.

October is a free, open-source and self-hosted content management system written in PHP on top of the framework Laravel. The CMS features a universal extendable dashboard, inspector, reusable CMS components and a plugin system that can be used to extend functinality of your website. The plugin store contains thousands of community-made plugins that can either be purchased or installed for free. As a data store, October CMS supports MySQL, PostgreSQL and SQLite.

Tina is an open-source site editing toolkit and headless CMS for React-based sites like Gatsby & Next.js

Ghost is a free and open-source headless CMS and blogging platform developed by Ghost Foundation. With Ghost you can manage content in style, the user experience provided by the software is intuitive and encourages writing. Ghost is written in JavaScript for the Node.js platform and is released under the MIT license.

Grav is a modern free and open source flat-file content management system. With Grav, you can publish content and build sites in a fast, flexible and simple manner with the file-based web platform. Grav requires zero installation and is just an zip archive that can be extracted to start using the CMS. Grave also comes with a powerful package management system that allow you to extend the feature set of Grav CMS. With the package management system you can install and upgrade themes and plugins written specifically for Grav. The software is written in PHP and released fully free and open-source under the MIT License.

WordPress powers roughly 30% of all web pages online. It's a free and open source CMS designed and developed for self-hosted publishing by Automattic, Inc. The software is written in PHP and utilize either MySQL or MariaDB as a database, and is compatible with most web hosts. Wordpress includes a plugin architecture and a templating system that can be used to extend and customize your website. These are commonly known as WordPress plugins and WordPress themes and make up a whole open source and commercial eco-system where anyone is free to create products for the platform.