# mbostock/stack

A presentation library with intuitive, scroll-based navigation.

Repository: https://github.com/mbostock/stack
Canonical: https://ross.abutalabs.com/products/mbostock-stack
Homepage: https://mbostock.github.io/stack/
Language: JavaScript
License: NOASSERTION
License Family: other
Last push: 2016-12-15T21:47:50+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5339, "days_push": 3548, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1144, forks 157 (observed 2026-08-28T04:03:45.482730+00:00)

## What it is
Stack is a JavaScript presentation library by Mike Bostock that renders slide decks with intuitive scroll-based navigation. It supports keyboard and scrollbar navigation, automatic content scaling on resize, and activate/deactivate events for triggering animations when slides become visible.

## Use cases
- create scroll-based slide presentations in the browser
- build a talk deck that navigates with arrow keys or the scrollbar
- add fade-in slide transitions to a web presentation
- trigger animations only when a slide is visible
- make presentation content scale automatically when the window resizes

## When to choose
- you want a lightweight, dependency-free scroll-driven presentation in plain JavaScript
- you prefer natural scrolling navigation over click-to-advance slide tools
- you need activate/deactivate hooks for per-slide animations

## When to avoid
- you need actively maintained software with recent updates and support
- you need speaker notes, PDF export, or other full presentation-suite features
- you need a framework-specific solution like reveal.js with a large plugin ecosystem

## Facets
- artifact type: library
- maturity: abandoned
- function: animation, ui-components
- domain: web-development, frontend, developer-tools
- platform: browser
- tags: presentation, slides, scroll-navigation, bsd-license, javascript

## Member repositories
- mbostock/stack (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:45.482730+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 2026-08-30T06:34:45.246877+00:00, confidence not recorded.
  - readme: https://github.com/mbostock/stack (fetched 2026-08-28T04:03:45.482730+00:00, sha 92d1e33bf348)
  - homepage: https://mbostock.github.io/stack/ (fetched 2026-08-29T12:40:06.473127+00:00, sha 395a1335b069)
- Data as of 2026-08-30T08:39:29.467469+00:00.