List of free CMS stuff for developerππ½
If you're looking for all programming tools around CMS (not just free). Check this page List of CMS Programming Tools
Directus
Open-Source Data Platform β Directus wraps any SQL database with a real-time GraphQL+REST API and an intuitive app for non-technical users. 100% JavaScript.
Tag: Database, SQL, GraphQL, API, CMS
Completely Free and Open-Source Works with any New or Existing SQL Database REST & GraphQL API Powerful Content/Data/Asset Management Completely Flexible Content Structure

Total.js Platform
Total.js Platform is a collection of server-side & client-side JavaScript/Node.js libraries, Web Components, icons, practices, and complete apps written in pure JavaScript, mostly without dependencies.
Tag: devtools, cms, text-editor, visual-programming, components
Publii
Static Sites Generator with User Interface, blogging tool for ultra-fast, SEO friendly and secure websites, supports publishing to AWS S3, Netlify, GitHub Pages, Gitlab Pages, FTP, Google Cloud.
Tag: cms
Forestry
Give your editors the power of Git.Create, edit, and instant preview Markdown-based sites.
Tag: CMS
Up to 3 sites Instant Site Preview before publishing CMS admin on your domain Inactive sites archived after 3 months

Sanity.io
Sanity is the unified content platform that lets your team work together in real-time to build engaging digital experiences across channels.
Tag: CMS
Open source editing environment Hosted, real-time content database Great developer experience 3 users, $10/mo for more Generous usage quota

Unlimited Projects Unlimited Rows per Sheet Unlimited Read Requests per month Read, Write, Edit and Delete
CloudCannon
CloudCannon is your all-in-one platform for static sites β itβs the best way to sync, build, edit, and host your Jekyll, Hugo, and Eleventy sites for the modern web.
Tag: CMS, SSG
Fully featured CMS Unlimited staging sites Staging publishing workflows Up to 3 team members Client sharing Pay as you grow Two-way syncing to your repository Optional CloudCannon hosting

Retool
Retool is the fast way to build internal tools. Drag-and-drop our building blocks and connect them to your databases and APIs to build your own tools, instantly. Connects with Postgres, REST APIs, GraphQL, Firebase, Google Sheets, and more. Built by developers, for developers. Trusted by startups and Fortune 500s. Sign up for free.
Tag: CMS, database, admin-panel, internal-tool
Connect to most databases or REST APIs Editor mode only Query library Up to 5 modules

Free / Open source

2 Users 2 Roles No Additional Users Forum Support

Strapi
Strapi is the leading open-source headless CMS. Itβs 100% JavaScript, fully customizable and developer-first.
Tag: API, CMS
Free forever (open source) REST & GraphQL API Highly Flexible Content Structure Powerful Content Management

Appsmith
Appsmith is an open source web framework for building internal tools, admin panels, dashboards, and workflows.
Tag: CMS, admin-panel, internal-tool
Unlimited Members Unlimited Apps Unlimited Pages Unlimited Datasources Community Support Free App Hosting
Berowra
With Berowra you can get a CMS up in a minute, not a day. Through Deta Space, Berowra gives you the control of self hosting without any need for infrastructure maintenance. It's easy to use, flexible and completely free.
Tag: CMS

CMS list Jamstack
Check out this showcase of some of the best, open source headless CMSes. This is community-drive so be sure to submit your favorite CMS today!
Tag: CMS, jamstack, awesome-list