Ladda

Ladda is a small UI library that makes buttons feel responsive by combining loading indicators and progress feedback directly inside the button itself. Instead of showing spinners elsewhere on the page, Ladda turns the button into the stateful element: click it, it shows loading, and optionally it can show progress. This pattern improves user experience on forms and actions that take more than a split second, because users immediately understand that the click was received. Ladda ships with multiple styles (expand, zoom, slide) so it can blend into different UI designs without rewriting CSS from scratch. It’s framework-agnostic, so you can drop it into existing pages and just attach it to buttons that trigger async actions. It is especially useful in dashboards, admin panels, and mobile-web flows where you want clear action feedback without heavy UI components.