# marionettejs/backbone.marionette

The Backbone Framework

Repository: https://github.com/marionettejs/backbone.marionette
Canonical: https://ross.abutalabs.com/products/backbonemarionette
Homepage: https://marionettejs.com
Language: JavaScript
License: NOASSERTION
License Family: other
Topics: framework, frontend, javascript, backbone, marionettejs, marionette, backbone-framework
Last push: 2026-08-20T20:29:36+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 8, longevity 100
- inputs: {"age_days": 5378, "days_push": 13, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- 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 7035, forks 1238 (observed 2026-08-28T04:09:55.217698+00:00)

## What it is
Marionette.js is a composite application framework built on top of Backbone.js that provides application architecture, view management, and memory management for large-scale JavaScript single-page applications. This repository (backbone.marionette) is in maintenance mode, with new feature development moved to the Backbone-free 'marionette' library.

## Use cases
- structure a large backbone single-page application
- add view and memory management to backbone apps
- organize complex layouts from small views
- decouple communication between app components
- gradually add architecture to an unruly legacy backbone codebase
- share UI behaviors across views as mixins

## When to choose
- you maintain an existing Backbone.js application that needs structure
- you want a lightweight, pick-and-choose architecture layer over Backbone
- you need battle-tested view lifecycle and region management

## When to avoid
- you are starting a new frontend project from scratch
- you want a modern component-based framework like React or Vue
- you need active feature development, since this repo only receives fixes

## Facets
- artifact type: framework
- maturity: maintenance
- function: frontend-framework, ui-components, state-management, templating
- domain: web-development, frontend, developer-tools
- platform: browser
- tags: backbone, marionette, composite-application, single-page-app, view-management, legacy-javascript, javascript, nodejs

## Member repositories
- marionettejs/backbone.marionette (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:55.217698+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 2026-08-29T17:40:33.927555+00:00, confidence not recorded.
  - readme: https://github.com/marionettejs/backbone.marionette (fetched 2026-08-28T04:09:55.217698+00:00, sha c12b0679a139)
  - homepage: https://marionettejs.com (fetched 2026-08-29T08:36:41.404277+00:00, sha a54f6f438518)
  - site_page: https://marionettejs.com/docs/current (fetched 2026-08-29T08:36:41.434859+00:00, sha 17af1ca944e6)
  - registry_npm: https://registry.npmjs.org/backbone.marionette (fetched 2026-08-29T08:36:41.437617+00:00, sha 70239d5169af)
- Data as of 2026-08-30T08:39:29.467469+00:00.