Kirby

Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.

Payload is the open-source, fullstack Next.js framework, giving you instant backend superpowers. Get a full TypeScript backend and admin panel instantly.

Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS powered by PHP, Markdown, Twig, and Symfony

Twill is an open source CMS toolkit for Laravel that helps developers rapidly create a custom admin console that is intuitive, powerful and flexible.

Open-source adaptive content workspace

A flexible, elegant, fast and easy-to-use content management system written in PHP.