# alexfoxy/lax.js

Simple & lightweight (<4kb gzipped) vanilla JavaScript library to create smooth & beautiful animations when you scroll.

Repository: https://github.com/alexfoxy/lax.js
Canonical: https://ross.abutalabs.com/products/laxjs
Language: JavaScript
License: MIT
License Family: permissive
Topics: parallax, scroll, effects, transitions, animation, css
Archived: true
Last push: 2025-05-21T06:07:55+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 22, release rhythm 8, longevity 100
- inputs: {"age_days": 2731, "days_push": 469, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 10475, forks 481 (observed 2026-08-28T04:10:42.090914+00:00)

## What it is
Lax.js is a lightweight (<4kb gzipped) vanilla JavaScript library for creating smooth scroll-driven animations and parallax effects. It supports custom drivers (scroll, mouse, time) and CSS property bindings with easings and presets.

## Use cases
- add parallax scrolling effects to a website
- animate elements as the user scrolls
- create scroll-linked CSS animations without a framework
- drive animations from mouse position or other inputs
- add inertia effects to scrolling animations
- build lightweight scroll effects without jQuery

## When to choose
- you need a tiny, dependency-free scroll animation library
- you want simple parallax or scroll effects on a static site
- you prefer vanilla JavaScript over heavy animation frameworks

## When to avoid
- you need actively maintained software with bug fixes
- you require advanced animation timelines like GSAP
- you need framework-specific animation integrations with official support

## Facets
- artifact type: library
- maturity: abandoned
- function: animation
- domain: frontend, web-development, web-design
- platform: browser
- tags: scroll-animations, parallax, vanilla-javascript, lightweight, css-animations, javascript

## Member repositories
- alexfoxy/lax.js (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:42.090914+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:18:59.127686+00:00, confidence not recorded.
  - readme: https://github.com/alexfoxy/lax.js (fetched 2026-08-28T04:10:42.090914+00:00, sha 6792da14a874)
  - registry_npm: https://registry.npmjs.org/lax.js (fetched 2026-08-29T08:18:15.414818+00:00, sha ef85158dcc97)
- Data as of 2026-08-30T08:39:29.467469+00:00.