[gherkinnn]

“A rugged, minimal framework for composing JavaScript behavior in your markup.”

The tagline says it all, really. I never used it myself, but their examples seem to go a long way at explaining the philosophy.

The framework vs library debate is a boring one and goes nowhere.

[TheLudd]

The headline says "AlpineJS – Lightweight JavaScript Framework".

[gherkinnn]

That is true.

However, the project tagline on Github (but not the docs), which is but one click away, states “A rugged, minimal framework for composing JavaScript behavior in your markup.”