Ampersand.js vs Mithril: What are the differences?

Ampersand.js: A highly modular, loosely coupled, non-frameworky framework for building advanced JavaScript apps. We <3 Backbone.js at &yet. It’s brilliantly simple and solves many common problems in developing clientside applications. But we missed the focused simplicity of tiny modules in node-land. We wanted something similar in style and philosophy, but that fully embraced tiny modules, npm, and browserify. Ampersand.js is a well-defined approach to combining (get it?) a series of intentionally tiny modules; Mithril: Client-side MVC framework - a tool to organize code in a way that is easy to think about and to maintain. Mithril is around 12kb gzipped thanks to its small, focused, API. It provides a templating engine with a virtual DOM diff implementation for performant rendering, utilities for high-level modelling via functional composition, as well as support for routing and componentization.

Ampersand.js and Mithril can be primarily classified as "Javascript MVC Frameworks" tools.

"Open source" is the primary reason why developers consider Ampersand.js over the competitors, whereas "Lightweight" was stated as the key factor in picking Mithril.

Ampersand.js and Mithril are both open source tools. It seems that Mithril with 11.3K GitHub stars and 863 forks on GitHub has more adoption than Ampersand.js with 818 GitHub stars and 52 GitHub forks.