Lightweight Loading Overlay Plugin For Bootstrap 5 – AvalynxLoader
A lightweight JavaScript plugin for Bootstrap 5 that displays a loading overlay with an animated spinner over specified DOM elements.
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Highly Customizable Skeleton Loader In Pure CSS – Skeleton Mammoth
A CSS library for creating customizable skeleton loaders to provide a visual placeholder while the content loads.
loadersz: 160 Canvas Loading Animations for the Web
Create Canvas animations for loading, search, processing, uploads, reasoning, and other async tasks with loadersz.
Preload Specified Assets Using XHR2 – preload-it
The preload-it library preloads & prefetches assets (e.g. videos, audios, etc) using XMLHttpRequest to optimize the loading speed of your webpage.
Auto-Generated Skeleton Loader Web Component for Any Framework – phantom-ui
Add structure-aware skeleton loading states to any UI by wrapping it in the phantom-ui web component. Works in React, Vue, Svelte, Angular, Solid, Qwik, and Vanilla JavaScript with no adapters.
Dynamic Inline HTML Importing with i-html Web Component
A web component for dynamically importing HTML inline. Enhance your web pages with flexible and secure content loading.
Lazy Load Fonts with IntersectionObserver API – FontJit
A JavaScript utility to lazy-load font files when elements enter the viewport using IntersectionObserver. Control font loading with data attributes.
Material Design 3 Expressive Loading Indicator to React/Vue/Svelte/Vanilla JS
Add a Material Design 3 morphing loading indicator to your React/Vue/Svelte/Vanilla JS project with seven animated shape transitions and canvas rendering.
Display Blurry Placeholders While Loading Images – unlazy
An SEO-friendly and framework-agnostic lazy loading library that displays a blurry image placeholder until the original image is completely loaded.
Lightweight AJAX Page Navigation Library – µJS
Add SPA-like navigation to any server-rendered site with µJS. A 5 KB library with patch mode, SSE support, and View Transitions built in.