# kakaopensource/KakaJSON

Fast conversion between JSON and model in Swift.

Repository: https://github.com/kakaopensource/KakaJSON
Canonical: https://ross.abutalabs.com/products/kakajson
Language: Swift
License: MIT
License Family: permissive
Topics: swift, json, model, serialize, deserialize, mapping, data, dictionary, array
Last push: 2022-11-29T02:26:34+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2577, "days_push": 1374, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1213, forks 132 (observed 2026-08-28T04:04:00.751317+00:00)

## What it is
KakaJSON is a Swift library for fast conversion between JSON and model objects with one line of code. It also supports archiving/unarchiving objects and flexible key mapping between JSON keys and model properties.

## Use cases
- convert  to swift model objects
- serialize swift models to
- map snake_case  keys to camelCase properties
- parse nested  responses into models
- archive and unarchive objects in swift
- deserialize  arrays into model arrays

## When to choose
- you want simple one-line JSON-model conversion in Swift
- you need flexible key mapping like camelCase to underscore
- you want an alternative to Codable with less boilerplate

## When to avoid
- you only need standard Codable support with no extra features
- you need a library under very active maintenance
- you work outside the Apple/Swift ecosystem

## Facets
- artifact type: library
- maturity: maintenance
- function: serialization
- domain: developer-tools, web-development
- platform: -
- tags: -mapping, model-conversion, swift, cocoapods, object-archiving, ios, macos

## Member repositories
- kakaopensource/KakaJSON (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:00.751317+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 2026-08-30T06:17:56.389006+00:00, confidence not recorded.
  - readme: https://github.com/kakaopensource/KakaJSON (fetched 2026-08-28T04:04:00.751317+00:00, sha 66a14bcd88e3)
- Data as of 2026-08-30T08:39:29.467469+00:00.