# maslianok/react-resize-detector

A Cross-Browser, Event-based, Element Resize Detection for React

Repository: https://github.com/maslianok/react-resize-detector
Canonical: https://ross.abutalabs.com/products/react-resize-detector
Homepage: http://maslianok.github.io/react-resize-detector/
Language: TypeScript
License: MIT
License Family: permissive
Topics: react, resize, cross-browser, resize-events, resizeobserver, react-resize-observer, resizer, resizeable, resizes
Last push: 2026-04-19T21:06:58+00:00

## Health v2 (maintenance only)
Score: 65/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 78, release rhythm 28, longevity 100
- inputs: {"age_days": 3940, "days_push": 136, "days_rel": 435, "gap_med": 84.5, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1303, forks 97 (observed 2026-08-28T04:04:18.416844+00:00)

## What it is
A tiny (~2kb) TypeScript React library for detecting element size changes using the native ResizeObserver API. It provides a hook and component to react to element resizes without window resize listeners or timeouts.

## Use cases
- detect when a react element is resized
- get element width and height in react
- responsive component behavior based on container size
- run javascript logic on element dimension changes
- replace window resize listeners with element-level resize detection
- build responsive charts or layouts that adapt to their container

## When to choose
- you need JavaScript-based resize logic integrated with React state and effects
- you need complex calculations based on element dimensions
- CSS container queries are insufficient for your use case
- you want a tiny, widely-used, TypeScript-first solution

## When to avoid
- pure CSS container queries can solve your responsive styling needs
- you only need to react to window resizes rather than individual elements
- you are not using React

## Facets
- artifact type: library
- maturity: stable
- function: ui-components, frontend-framework
- domain: frontend, web-development, developer-tools
- platform: browser, cross-platform
- tags: react, resize-observer, hooks, typescript, responsive-layout, nodejs

## Member repositories
- maslianok/react-resize-detector (main) score 65

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:18.416844+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 2026-08-30T04:51:12.879247+00:00, confidence not recorded.
  - readme: https://github.com/maslianok/react-resize-detector (fetched 2026-08-28T04:04:18.416844+00:00, sha 6ca7af683893)
  - homepage: http://maslianok.github.io/react-resize-detector/ (fetched 2026-08-29T12:09:30.018516+00:00, sha e3f43543e979)
  - registry_npm: https://registry.npmjs.org/react-resize-detector (fetched 2026-08-29T12:09:30.027806+00:00, sha 1a4073bfade1)
- Data as of 2026-08-30T08:39:29.467469+00:00.