# Backbone.js

- **Canonical URI:** https://www.vioscale.ai/software/backbone-js
- **Category:** JavaScript Tooling
- **Homepage:** https://backbonejs.org
- **Also known as:** backbone-js
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-26T19:31:15.552Z

## Vioscale score

**48.9 / 100**, confidence 20% (low). Computed 2026-09-01.

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| price_level | 100 | 0.052 | 5.2 | ✓ |
| reliability | 0 | 0.073 | 0 | - |
| capabilities | 0 | 0.084 | 0 | - |
| repo_stars | 83.9 | 0.026 | 2.2 | ✓ |
| integrations | 0 | 0.09355555555555557 | 0 | - |
| dependent_projects | 75.7 | 0.063 | 4.8 | ✓ |
| dev_activity | 15 | 0.094 | 1.4 | ✓ |
| release_cadence | 0 | 0.052 | 0 | - |
| security_posture | 0 | 0.073 | 0 | - |
| package_downloads | 0 | 0.136 | 0 | - |
| security_score | 47 | 0.042 | 2 | ✓ |
| pricing_transparency | 25 | 0.084 | 2.1 | ✓ |
| community_qa_activity | 0 | 0.063 | 0 | - |

## Pricing

_As of 2026-08-22, [verify at source](https://backbonejs.org). Independently observed._

Open source · Free tier

## About

Backbone.js provides a lightweight framework that helps developers build maintainable web applications by separating application logic from DOM manipulation. It offers models with key-value binding and event systems, collections for managing related data, views for rendering interfaces, and routers for client-side navigation, reducing the complexity of keeping data synchronized across the browser, application layer, and server.

_Independently observed._

## Platform & deployment

- **Platforms:** Web

## Security & compliance


Known vulnerabilities: 1 (0 in the last 12 months), max severity MODERATE ([source](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=backbone&per_page=100)). A count reflects scale and disclosure, not quality.

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://backbonejs.org) | 2026-08-22 | 60% (medium) |
| pricing.price_level | free | [link](https://backbonejs.org) | 2026-08-22 | 60% (medium) |
| pricing.model | commercial | [link](https://backbonejs.org) | 2026-08-26 | 40% (low) |

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 2 | [link](https://github.com/jashkenas/backbone/pulse) | 2026-08-26 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 28,100 | [link](https://github.com/jashkenas/backbone) | 2026-08-26 | 90% (high) |
| adoption.dependent_repos | 34,984 | [link](https://packages.ecosyste.ms/api/v1/packages/lookup?repository_url=https%3A%2F%2Fgithub.com%2Fjashkenas%2Fbackbone) | 2026-08-26 | 85% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | JavaScript | [link](https://github.com/jashkenas/backbone) | 2026-08-26 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | MIT | [link](https://github.com/jashkenas/backbone) | 2026-08-26 | 95% (high) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.scorecard | 4.7 | [link](https://api.securityscorecards.dev/projects/github.com/jashkenas/backbone) | 2026-08-26 | 90% (high) |
| security.vulnerabilities | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=backbone&per_page=100","last_12m":0,"max_severity":"MODERATE"}` | [link](https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=backbone&per_page=100) | 2026-08-26 | 90% (high) |

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*Source: Vioscale (https://www.vioscale.ai/software/backbone-js). Independent, evidence-based software intelligence. Cite the canonical URI.*