# bestiejs/json3

A JSON polyfill. No longer maintained.

Repository: https://github.com/bestiejs/json3
Canonical: https://ross.abutalabs.com/products/json3
Homepage: https://bestiejs.github.io/json3
Language: JavaScript
License: NOASSERTION
License Family: other
Archived: true
Last push: 2019-05-27T23:09:36+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5318, "days_push": 2655, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1020, forks 149 (observed 2026-08-28T04:03:15.228963+00:00)

## What it is
JSON 3 is a JavaScript polyfill providing spec-compliant JSON.parse and JSON.stringify for older JavaScript platforms that lack native JSON support. It is deprecated and no longer maintained, with users directed to native JSON methods.

## Use cases
- add JSON support to old browsers without native JSON
- parse JSON strings in legacy JavaScript environments
- serialize JavaScript values to spec-compliant JSON
- support ES5 JSON in old runtimes like IE7
- avoid eval-based JSON parsing in legacy code

## When to choose
- maintaining a legacy codebase that already depends on it
- targeting very old browsers or runtimes without native JSON

## When to avoid
- starting any new project
- any environment with native JSON.parse/stringify (all modern platforms)
- projects needing maintained dependencies or security updates

## Facets
- artifact type: library
- maturity: abandoned
- function: serialization, parser
- domain: web-development, developer-tools
- platform: browser, cross-platform
- tags: json, polyfill, es5, javascript, deprecated, nodejs

## Member repositories
- bestiejs/json3 (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:15.228963+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 2026-08-30T07:08:54.976192+00:00, confidence not recorded.
  - readme: https://github.com/bestiejs/json3 (fetched 2026-08-28T04:03:15.228963+00:00, sha f6be404d3af3)
  - homepage: https://bestiejs.github.io/json3 (fetched 2026-08-29T13:09:22.958999+00:00, sha 9f4354d6f5d9)
  - registry_npm: https://registry.npmjs.org/json3 (fetched 2026-08-29T13:09:22.968236+00:00, sha 60dda7a4bcad)
- Data as of 2026-08-30T08:39:29.467469+00:00.