Open Source · PHP / Symfony

The static site generator that
gets out of your way.

Write Markdown. Define structure in YAML. Run one command. Get pure static HTML — no database, no runtime, no surprises.

Get Started GitHub
0
Database tables
100%
Static output
AI
Friendly structure
What is notACMS?

A CMS that stores
nothing at runtime.

notACMS is a PHP/Symfony static site generator built for developers who want full control. Your content lives in Markdown + YAML files. Your templates are Twig. Your output is pure HTML.

No database migrations. No plugin conflicts. No CMS lock-in. Just a build step that turns your local/content/ directory into a complete static site.

Designed for AI-friendly workflows — flat files are trivial to read, search, and generate with LLMs.

0
Database dependency
Content lives in flat Markdown + YAML files. No ORM, no migrations.
1
Build command
./notACMS deploy outputs your complete site to public/static/.
∞
Locales supported
Add any language with a line in _site.yaml. Content co-located per locale.
Apache 2.0
Licensed
Fork it, extend it, make it yours. No vendor lock-in.
Features

Everything you need.
Nothing you don't.

Built on Symfony 7.4 and PHP 8.5. Familiar tools, minimal magic.

Markdown + YAML
Write content in Markdown with YAML frontmatter. CommonMark with headings, tables, callouts.
Multilingual
First-class i18n. Content co-located per locale. URL overrides per language. hreflang out of the box.
Full-text Search
Pagefind integration. Static, zero-server-cost search indexed at build time. No external API.
PHP / Symfony Core
Full Symfony DI, console commands, Twig templates, SCSS via AssetMapper. PHP devs feel at home.
How it Works

Three steps from
idea to live site.

1
Write content
Create Markdown files in local/content/ with YAML frontmatter. Add pages, posts, and locales as needed.
2
Build
Run ./notACMS deploy --prod. notACMS compiles SCSS, processes images, renders Twig templates, and generates all static HTML.
3
Deploy anywhere
Upload public/ to any web server, CDN, or static host. No PHP runtime required — unless you use live mode.
# clone and start
$ git clone https://github.com/holas1337/notACMS
$ ddev start
 
# write your first page
$ mkdir -p local/content/pages/about
$ echo "---\ntitle: About\n---\n# Hello" > local/content/pages/about/en.md
 
# build and deploy
$ ./notACMS deploy --prod
✓ Cleared cache
✓ Compiled assets
✓ Generated 12 pages
✓ Built search index
✓ Done in 2.4s

This site is built with notACMS.

A living proof-of-concept: the product documents and markets itself using exactly the tools it provides.
View source on GitHub
Releases

Latest release

All releases
releases Jun 13, 2026 release announcement

notACMS 1.2.1 — charset fix, smarter build warnings, new docs pages

What's in 1.2.1 A small follow-up to 1.2.0 with two bug fixes and expanded documentation. nginx charset Plain-text responses — /llms.txt, /robots.txt — were served without a charset declaration. Brows…

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Start building today.

Clone the repo, add your content, run one command. Your site is live.

Read the Manual GitHub