joelittlejohn/jsonschema2pojo

Health v2 · maintenance only

Adoption not part of the score

6381 stars · 1678 forks observed · 2026-08-28

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

jsonschema2pojo generates Java types (POJOs) from JSON Schema or example JSON documents, annotating them for data-binding with Jackson 2.x/3.x, Gson, Moshi, or JSON-B. It can be used as a Maven plugin, Gradle plugin, command-line tool, Ant task, or embedded Java API.

Use cases

• generate java pojos from json schema
• generate java classes from example json
• add jackson annotations to generated java types
• generate gson-annotated model classes
• integrate schema-based code generation into maven build
• generate java types from yaml schema
• generate validation-annotated java beans

When to choose

• you need Java model classes matching a JSON Schema for data binding
• you want build-time code generation via Maven or Gradle plugins
• you need configurable annotation styles (Jackson, Gson, Moshi, JSON-B) and options like builders, primitives, or validation annotations

When to avoid

• you work in a non-JVM language
• you need runtime schema-to-object mapping rather than compile-time generated classes
• you need code generation for languages other than Java

Facets

library · maturity active

serialization cli plugin-system developer-tools apis jvm cli cross-platform json-schema pojo-generation jackson gson maven-plugin gradle-plugin code-generation json java

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