v0.20.1 · now on JSR

The flat-file CMS
for Deno and Fresh

Grows from Markdown content to full-stack web apps with Preact themes and Fresh islands.
Start without a database. Ship as a single Deno module — no build pipeline required.

Get started →View on GitHub
$deno install -A -n dune jsr:@dune/core/cli
$dune new my-site
$dune serve --root my-site
What's included

Markdown served the Fresh way

📄

Markdown content

Write pages in Markdown or MDX — embedding Fresh islands directly in your content for interactive components right in the prose.

⚡

TSX themes + Preact islands

Themes are Preact components. Drop a .tsx file into themes/{name}/islands/ and Fresh bundles and hydrates it automatically — no bundler config, no registration.

🔌

Plugin system

Extend Dune with hooks for rendering, routing, and content — and ship interactive UI as islands that hydrate where you need them.

🗂️

Multisite

Serve multiple sites from a single process with shared themes. Ideal for hosting families of sites.

🌐

i18n built-in

Multi-language routing, locale files, and language switcher — all wired up automatically.

🌱

Grows with you

Start with Markdown files. Add public user auth, a database schema, background jobs, or payments when your project needs them. Same framework, no migration.

How it works

Up and running in minutes

No config files, no installers, no local databases. Dune is a Deno module you import and serve.

01

Create a site

Run the CLI to scaffold a new site with a starter theme, sample content, and a ready-to-run deno.json.

02

Write your content

Drop markdown files into content/. Directories become sections. Frontmatter controls templates, titles, and metadata.

03

Ship it

Run dune serve. Point a domain at it. Done. No database, no build pipeline, no CMS vendor lock-in.

Under the hood

Minimal boilerplate

Two files to a working site: a deno.json and a site config.

# Install the CLI
deno install -A -n dune jsr:@dune/core/cli

# Create a new site
dune new my-site
cd my-site

# Start the dev server
dune dev

# Build for production
dune serve
{
  "imports": {
    "preact": "npm:preact@^10",
    "preact/jsx-runtime": "npm:preact@^10/jsx-runtime",
    "@dune/core": "jsr:@dune/core@^0.19"
  },
  "tasks": {
    "dev": "dune dev",
    "serve": "dune serve"
  },
  "compilerOptions": {
    "jsx": "react-jsx",
    "jsxImportSource": "preact"
  }
}
title: My Site
description: Built with Dune
url: https://mysite.com
theme:
  name: starter

Ready to build?

Read the docs, scaffold your first site, and see how far a flat-file stack gets you.

Read the docs →Browse plugins