Eleventy vs Metalsmith

Eleventy is a free static site generator that compiles templates into HTML. It starts with zero configuration and also allows flexible configuration as project needs change. Content can come from Markdown, and templates can use HTML, JavaScript, WebC, Liquid, Nunjucks, Handlebars, Mustache, EJS, Haml, Pug, TypeScript, JSX, MDX, Sass, and custom formats. Eleventy does not require a JavaScript framework and produces zero client-side JavaScript by default. It can fit into an existing directory structure, letting teams convert selected templates rather than an entire site. The tool includes a local preview server, CMS integration, and multilingual support. It requires JavaScript and recommends Node.js version 18 or newer; quick-start commands are provided for macOS, Linux, and Windows, and for npm, pnpm, and Yarn. Its documentation says it probably is not the right tool for single-page applications, given its defaults and full-page navigation. Eleventy supports self-hosted use and is marked MIT licensed. The homepage reports a build time of 1.93 seconds for 4,000 Markdown files.

Metalsmith is a free, pluggable static-site generator for NodeJS that works more like a library than a framework. It transforms a directory tree into plain JavaScript objects that plugins can manipulate, without requiring a predefined project structure. Developers can use configuration over code or code over configuration, and access the package through either its JavaScript API or command-line interface. It works with npm, Markdown, JSON, YAML, and a templating language of choice. Example uses include static sites, scaffolding, backups, command-line and deployment tools, and eBooks made from Markdown for PDF, ePUB, or MOBI output. Starter repositories cover blog, company, resume, and clean-blog projects. Builds create static folders for deployment to CDNs, Netlify, GitHub Pages, GitLab Pages, SFTP hosts, or custom servers. Metalsmith requires NodeJS; the listed platforms include Linux, macOS, and Windows. The documentation says partial rebuilds are not available and suggests using a file watcher and browser synchronization package for automatic rebuilds. No billing terms or prices are stated on the supplied pages.