Eleventy (software)

Eleventy (abbreviated 11ty) is a static site generator, a software system for creating websites. It is open source software written in JavaScript. 11ty is noted for its simplicity, and for its support of a large number of template languages. Paired with other technologies, 11ty can be used as part of a JAMstack.

11ty was created in 2017 by Zach Leatherman. It was inspired by Jekyll.

Eleventy’s emergence coincided with wider adoption of “static-first” and JAMstack workflows that separate content generation from request-time rendering. Academic and practitioner literature describes a shift from early static sites, through dynamic CMS-driven stacks, to hybrid models that combine prebuilt pages with API-fetched data when needed.