xtianmiller/emergence.js

Health v2 · maintenance only

Flags: no_releases archived

Adoption not part of the score

1867 stars · 57 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Emergence.js is a lightweight, dependency-free JavaScript plugin that detects when elements become visible in the browser viewport. It toggles a data-emergence attribute on watched elements so developers can trigger CSS or JS animations and state changes on scroll.

Use cases

• reveal elements with animations as they scroll into view
• detect when an element enters the browser viewport
• trigger CSS state changes on scroll visibility
• lazy reveal content on scroll without jQuery
• add scroll-based visibility callbacks to elements

When to choose

• you need a tiny (~1KB) dependency-free scroll visibility plugin
• you want to control reveal effects with your own CSS via data attributes
• you need broad legacy browser support including IE8+

When to avoid

• you need advanced scroll animation features like parallax or staggered timelines
• your framework already provides intersection-observer-based utilities
• you need lazy-loading of images rather than visibility state toggling

Facets

plugin · maturity maintenance

animation ui-components frontend web-development browser scroll-visibility scroll-reveal viewport-detection dependency-free data-attributes javascript

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