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Eleventy
MITEleventy is a flexible, zero-runtime static site generator that compiles multiple template formats into plain HTML without client framework lock-in.
Overview
An engineering team building an internal documentation portal discovers that modern full-stack web frameworks force heavy client JavaScript runtimes and connect builds to third-party telemetry. Eleventy eliminates those operational liabilities by transforming templates and Markdown into static HTML entirely on local infrastructure. Teams keep full authority over build output, asset pipelines, and hosting environments with zero framework code sent to browsers.
Where Eleventy fits
Many content websites do not need single-page application runtimes or complex server rendering. Frameworks like Next.js treat documentation and marketing pages as hydrated applications, requiring persistent Node.js servers or cloud functions that complicate deployment. Meanwhile, Ruby-based generators like Jekyll carry brittle dependency toolchains, and Go-based Hugo enforces rigid, specialized templating syntax. Eleventy occupies a middle ground: a Node.js-based static site generator that compiles multiple template engines directly into flat HTML without client-side framework baggage.
For infrastructure control and privacy, this model eliminates telemetry and proprietary cloud hooks. Eleventy does not phone home, require proprietary edge runtime features, or dictate directory layouts. Build output deploys to standard Nginx containers, hardened homelab hosts, or static storage buckets without exposing internal networks. However, that flexibility requires managing your own tooling. Eleventy omits built-in asset minification and client-side hydration, so developers needing scripts, styles, or interactive components must wire tools like Vite or custom build scripts themselves.
What it does well
- Multi-engine templating: Compiles Markdown, Liquid, Nunjucks, HTML, and WebC within one project without rewriting existing content.
- Zero client-side footprint: Produces plain HTML and CSS by default, eliminating runtime hydration and external tracking scripts.
- Flexible data cascade: Merges front matter, directory data files, and global configurations into a clear data pipeline.
- Build-time asset helpers: Official plugins like
@11ty/eleventy-imgoptimize images and cache external data locally during compilation. - Embedded dev server: Ships an internal development server with live reloads, DOM diffing, and incremental rebuild support.
