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.
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Modern Link Prefetching with Hover Detection & Fallback – SmartPrefetch
Add intelligent prefetching to your site with hover detection, viewport triggers, and automatic browser compatibility handling in under 5KB.
Pure CSS Progress Bar Library with Custom Themes – progress-bar.css
A pure CSS progress bar library with built-in themes, size modifiers, and optional JavaScript helpers for dynamic control.
Fast Youtube Video Embed With lite-youtube Component
The lite-youtube component makes Youtube video embed much faster than the traditional iframe method.
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.
Fast, Lightweight YouTube Video Embed Web Component – lite-youtube
A vanilla JavaScript web component for faster YouTube embeds. Uses Shadow DOM, lazy loading, and responsive design to reduce page load times.
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.
12+ Lightweight CSS Loading Animations – NanoLoader
12+ customizable CSS loading animations with multiple colors, sizes, and mobile support. Easy plug-and-play setup.
Modern TypeScript Progress Bar Library – BProgress
A lightweight TypeScript library for creating slim, customizable top progress bars. A modern, maintained alternative to NProgress and Pace.js.
Delay The Loading Of Anything With Defer.js
Defer.js is a small and lightweight JavaScript library that delays the loading of web resources to improve page speed.