# jquery/jquery-mousewheel

A jQuery plugin that adds cross-browser mouse wheel support.

Repository: https://github.com/jquery/jquery-mousewheel
Canonical: https://ross.abutalabs.com/products/jquery-mousewheel
Language: JavaScript
License: NOASSERTION
License Family: other
Last push: 2026-08-10T23:11:13+00:00

## Health v2 (maintenance only)
Score: 78/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 40, longevity 100
- inputs: {"age_days": 6531, "days_push": 23, "days_rel": 520, "gap_med": 0.0, "n_releases_24m": 21}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3915, forks 1634 (observed 2026-08-28T04:08:28.905968+00:00)

## What it is
A jQuery plugin that adds cross-browser mouse wheel event support with delta normalization. It exposes normalized deltaX/deltaY values and a deltaFactor property so scroll handling behaves consistently across browsers, devices, and trackpads.

## Use cases
- handle mouse wheel events consistently across browsers
- normalize scroll deltas from mice and trackpads
- build custom scroll or zoom interactions in jQuery
- get scroll distance from wheel input
- support horizontal wheel scrolling (deltaX)

## When to choose
- your project already uses jQuery and needs wheel event handling
- you need consistent delta values across browsers and input devices
- you want a small, battle-tested plugin for wheel-based interactions

## When to avoid
- you are building a modern app without jQuery - use native wheel events or a framework-native solution
- you need touch or pointer gesture handling beyond the mouse wheel
- you need active feature development - the plugin is in maintenance mode

## Facets
- artifact type: plugin
- maturity: maintenance
- function: ui-components, middleware
- domain: web-development, frontend, browser-extensions
- platform: browser
- tags: jquery-plugin, mousewheel, event-handling, scroll, delta-normalization, javascript

## Member repositories
- jquery/jquery-mousewheel (main) score 78

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:28.905968+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 2026-08-29T18:25:03.299373+00:00, confidence not recorded.
  - readme: https://github.com/jquery/jquery-mousewheel (fetched 2026-08-28T04:08:28.905968+00:00, sha 3a36f98e9b80)
  - registry_npm: https://registry.npmjs.org/jquery-mousewheel (fetched 2026-08-29T09:19:11.402869+00:00, sha 8e98f4ddcfe8)
- Data as of 2026-08-30T08:39:29.467469+00:00.