# bigbite/macy.js

Repository: https://github.com/bigbite/macy.js
Canonical: https://ross.abutalabs.com/products/macyjs
Homepage: http://macyjs.com/
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2022-12-05T04:31:14+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4009, "days_push": 1367, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1327, forks 151 (observed 2026-08-28T04:04:22.872906+00:00)

## What it is
Macy.js is a lightweight, dependency-free 4kb JavaScript masonry layout library that arranges items vertically into columns with minimum total height. It supports responsive breakpoints, CSS transitions, and a simple event API.

## Use cases
- create a masonry grid layout in vanilla javascript
- responsive column layout with breakpoints
- layout images in columns without jquery
- equal-height column layout for cards
- lightweight masonry alternative to isotope

## When to choose
- you need a tiny dependency-free masonry layout
- you want responsive column counts via breakpoints
- you use CSS transitions and want a simple event API

## When to avoid
- you need CSS grid or flexbox-native solutions
- you need drag-and-drop or animated reordering
- you need a framework-integrated layout system

## Facets
- artifact type: library
- maturity: maintenance
- function: ui-components, animation
- domain: frontend, web-development, web-design
- platform: browser
- tags: masonry-layout, css-grid, responsive-layout, dependency-free, layout-library, javascript

## Member repositories
- bigbite/macy.js (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:22.872906+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 2026-08-30T04:46:15.623081+00:00, confidence not recorded.
  - readme: https://github.com/bigbite/macy.js (fetched 2026-08-28T04:04:22.872906+00:00, sha d0e701bdbab9)
  - homepage: http://macyjs.com/ (fetched 2026-08-29T12:05:20.043797+00:00, sha 43643fcc4a75)
- Data as of 2026-08-30T08:39:29.467469+00:00.