java-json-tools/json-schema-validator

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1644 stars · 395 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A pure Java implementation of JSON Schema validation supporting draft v4 (with hyperschema) and draft v3, focused on correctness and performance. It is available on Maven Central and works on Android.

Use cases

• validate documents against a schema in java
• validate api request payloads against schema draft v4
• validate strings against a schema on android
• check schema hyperschema syntax compliance
• add schema validation to a jvm backend service

When to choose

• you need a mature, correctness-focused JSON Schema validator on the JVM
• you need draft v4 and v3 support including hyperschema syntax
• you need a dependency-free pure Java validator that runs on Android
• you consume libraries from Maven Central or Gradle

When to avoid

• you need support for newer JSON Schema drafts like 2019-09 or 2020-12
• you want a validator in a non-JVM language
• you need actively developed features beyond maintenance releases

Facets

library · maturity maintenance

testing serialization developer-tools apis backend jvm cross-platform -schema validation schema-validation pure-java android

Member repositories

For agents

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