Ech0

Ech0 is a flat-file content management system that generates static websites from markdown files. It runs directly in your browser with a live preview editor, so you can see changes as you type. The tool stores everything in plain text files, no database required. You set up your site structure once, then write and publish pages through the web interface.

Ech0 outputs pure HTML and CSS that you can deploy to any static host, like Netlify or GitHub Pages. The editor supports custom themes, syntax highlighting for code blocks, and automatic table of contents generation. It's built with JavaScript and runs on any platform that supports a modern browser. The project is maintained by the developer Lin Snow on GitHub.

This tool is ideal for developers and technical writers who want a version-control friendly CMS without the overhead of a database server. It's free and open source under the MIT license. The project is relatively new but already supports multi-language sites and responsive layouts out of the box.