Unpoly - Progressive enhancement for HTML
3.14
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Unpoly 3.14.x is now available.

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Progressive enhancement for HTML

Get powerful new HTML attributes to build dynamic UI on the server. Works with any language. Gracefully degrades without JavaScript.

Get started Watch a demo  or read the long story
Links only update changed fragments
Unpoly enhances your links to update fragments instead of full pages. This preserves other page state, like scroll positions or forms.
Master complex forms
Submit forms without leaving the page. Validate forms, update dependent fields and use multi-step forms within modals.
Branch off into layers
Branch off subinteractions into overlays. Return to the main page when you're done.
Outsmart server latency
Shorten response times by preloading pages, caching responses and following links earlier. Cached content is kept fresh and remains available when offline.
Client-side interaction feedback
Instantly show placeholders, disable forms or define arbitrary loading state. You can even do optimistic rendering with client-side templates.
Organize your JavaScript snippets
Organize your Javascripts in compilers to pair HTML elements with JavaScript behavior. Enhance existing HTML tags or create new elements.
Animation
Animate page changes with fade, swipe or zoom transitions.
Extensible
Hack and extend Unpoly using its comprehensive render lifecycle, JavaScript API and event model.
Plays nice with existing code
Migrate any server-side web application with manageable changes to existing JavaScripts.
Fix concurrency
Avoid real-world race conditions by smart aborting, batched validations and disabling submitted forms.
Made by Henning Koch
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