# nomcopter/react-mosaic

A React tiling window manager

Repository: https://github.com/nomcopter/react-mosaic
Canonical: https://ross.abutalabs.com/products/react-mosaic
Homepage: https://nomcopter.github.io/react-mosaic/
Language: TypeScript
License: NOASSERTION
License Family: other
Topics: react, window-manager, tiling-window-manager, typescript
Last push: 2026-08-06T15:33:28+00:00

## Health v2 (maintenance only)
Score: 85/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 96, release rhythm 61, longevity 100
- inputs: {"age_days": 3450, "days_push": 27, "days_rel": 51, "gap_med": 569, "n_releases_24m": 2}
- 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 4799, forks 243 (observed 2026-08-28T04:09:00.165113+00:00)

## What it is
react-mosaic is a React component library that implements a tiling window manager for web apps, providing drag-to-resize and drag-to-rearrange split and tab layouts inspired by IDE window management and i3. Layouts are plain JSON trees that can be controlled or uncontrolled, serialized, and themed with CSS.

## Use cases
- build a multi-panel dashboard where users can rearrange panes
- add IDE-style split panes to a web app
- let users drag and resize panels in a data visualization tool
- persist user-customizable panel layouts to localStorage or a backend
- create tabbed and split layouts in a React workspace app

## When to choose
- you need user-arrangeable split or tabbed panels in a React app
- you want serializable JSON layouts with controlled or uncontrolled state
- you need React 16-19 and TypeScript support with flexible theming

## When to avoid
- you are not using React
- you need a mobile-first layout rather than desktop-style panels
- you need a full windowing system with floating windows

## Facets
- artifact type: library
- maturity: active
- function: ui-components, state-management, frontend-framework
- domain: web-development, frontend, developer-tools
- platform: browser, cross-platform
- tags: react, tiling-window-manager, drag-and-drop, split-panes, typescript, layout, tabs, dashboard-panels, web-server, nodejs

## Member repositories
- nomcopter/react-mosaic (main) score 85

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:00.165113+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 2026-08-29T18:18:38.434390+00:00, confidence not recorded.
  - readme: https://github.com/nomcopter/react-mosaic (fetched 2026-08-28T04:09:00.165113+00:00, sha 4657a9195218)
  - homepage: https://nomcopter.github.io/react-mosaic/ (fetched 2026-08-29T09:01:55.451132+00:00, sha 03cfa3de1577)
- Data as of 2026-08-30T08:39:29.467469+00:00.