Comparison

NominiHTMX v4AlpineDatastar
Bundle Size (.min.br)🟒 ~1.8kb🟑 ~10.2kb🟑 ~14.7kb🟑 ~10.6kb
Main PurposeLightweight reactivity and partial page updatesEasy partial page updatesFull-featured reactivity systemFull-featured streaming page updates and reactivity
Reactivity ModelProxyπŸ”΄ N/AProxySignals and Proxy
Data Scoping🟑 nm-data, no inheritanceπŸ”΄ N/A🟒 Global tree with overrides🟒 Global tree with overrides
Event Handling🟒 nm-on with modifiers🟒 hx-on/hx-trigger with many modifiers🟒 x-on/@ with modifiers🟒 data-on with modifiers
Templating🟑 template + nm-use (simple)πŸ”΄ None🟒 x-for/x-teleport🟑 Rocket (pro only)
Transitions🟑 ID-based settling🟑 ID-based settling🟒 x-transition🟒 Full morphing
MorphingπŸ”΄ NoneπŸ”΄ Idiomorph WIP, with extension currentlyπŸ”΄ Only with alpine-morph🟒 Improved Idiomorph built-in
AJAX🟒 $fetch🟒 hx-getπŸ”΄ Only with alpine-ajax🟒 @get
Streaming Support🟒 By HTML Chunk🟒 By HTML Chunk or SSEπŸ”΄ N/A🟒 By custom SSE format
Server Requirements🟒 Produce HTML🟒 Produce HTML🟑 Produce HTML and JSON🟑 Produce custom SSE format (or HTML)
Server Power🟑 Swap in reactive HTML, trigger events, use templates🟑 Swap in HTML, trigger eventsπŸ”΄ Only with alpine-ajax🟒 Update signals, run scripts, morph HTML
Plugin SupportπŸ”΄ None🟒 Good plugin system🟒 Good plugin system🟒 Amazing plugin system (everything is a plugin)
Community SupportπŸ”΄ GitHub only🟒 HTMX Discord + social media🟒 Large community, unofficial Discord🟒 Datastar Discord
Docs Quality🟑 Basic website and docs🟒 Comprehensive website with extensive docs and essays🟒 Comprehensive docs with many examples🟒 Comprehensive reference and good tutorial
Learning Curve🟒 Low🟒 Very Low🟑 Medium🟑 Medium–High
Locality of Behavior🟒 Excellent🟒 Excellent🟒 Excellent🟒 Excellent
CSP CompatabilityπŸ”΄ None🟒 Good🟑 PossibleπŸ”΄ None