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square/moshi

A modern JSON library for Kotlin and Java. observed · 2026-08-28

github.com/square/moshi · homepage · Kotlin · Apache-2.0 (permissive) observed · 2026-08-28

Health v2 · maintenance only

77/100

  • Activity 99
  • Release rhythm 35
  • Longevity 100

Flags: no_releases

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 4407
  • days_rel: n/a
  • days_push: 8
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

10155 stars · 813 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Moshi is a modern JSON serialization library for Kotlin and Java, with built-in type adapters and optional Kotlin code generation. It converts JSON to and from Java/Kotlin objects with a simple adapter-based API.

Use cases

  • parse json into kotlin data classes
  • serialize java objects to json
  • json parsing on android
  • convert rest api responses to models
  • kotlin json serialization with codegen
  • read and write json in jvm apps

When to choose

  • you need JSON serialization on Android or the JVM in Kotlin or Java
  • you want type-safe, reflection-free codegen for Kotlin classes
  • you need a lightweight alternative to Gson with better Kotlin support

When to avoid

  • you need non-JSON formats like XML or protobuf
  • you want a multiplatform Kotlin serialization library beyond the JVM
  • your project is not on the JVM

Facets

library · maturity stable

serialization parser developer-tools mobile-development backend jvm json kotlin android code-generation type-adapters

2 sources

Member repositories

RepositoryRoleHealth v2
square/moshimain77

For agents

markdown · JSON · MCP: product_card(name="square/moshi")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem