# pbakaus/scroller

Accelerated panning and zooming for HTML and Canvas

Repository: https://github.com/pbakaus/scroller
Canonical: https://ross.abutalabs.com/products/scroller
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2025-11-21T21:38:30+00:00

## Health v2 (maintenance only)
Score: 47/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 53, release rhythm 8, longevity 100
- inputs: {"age_days": 5468, "days_push": 285, "days_rel": 413, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3912, forks 422 (observed 2026-08-28T04:08:28.872528+00:00)

## What it is
A pure logic JavaScript library providing accelerated panning, scrolling, and zooming for HTML and Canvas, independent of any rendering or event system. It supports momentum deceleration, bouncing, paging, snapping, and pull-to-refresh behaviors.

## Use cases
- add momentum scrolling to a canvas-rendered list
- implement pinch-to-zoom on a custom view
- create snap-to-grid scrolling behavior
- add pull-to-refresh to a web app list
- build touch-friendly panning for DOM content
- implement paging between full-screen sections

## When to choose
- you need scroll/zoom physics decoupled from your rendering layer
- you are rendering to Canvas or a custom DOM structure and want native-feeling scrolling
- you need configurable momentum, bouncing, snapping, and zoom in one component

## When to avoid
- you just need standard document scrolling, which browsers provide natively
- you want a full UI widget framework with built-in rendering and events
- you need scroll behavior for a native mobile app rather than web

## Facets
- artifact type: library
- maturity: maintenance
- function: animation, ui-components
- domain: web-development, frontend, mobile-development
- platform: browser, cross-platform
- tags: scrolling, zooming, touch, canvas, panning, momentum-scrolling, pull-to-refresh, javascript

## Member repositories
- pbakaus/scroller (main) score 47

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:28.872528+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 2026-08-29T18:25:04.772871+00:00, confidence not recorded.
  - readme: https://github.com/pbakaus/scroller (fetched 2026-08-28T04:08:28.872528+00:00, sha 7a9d99c0d36f)
- Data as of 2026-08-30T08:39:29.467469+00:00.