Formatting JSON in Java: Jackson vs Gson
Compare Jackson, Gson, and org.json for formatting JSON in Java. Includes ObjectMapper pretty print, GSON setLenient, and indentation configuration.
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Tags: json, java, developer-tools
Formatting JSON in Java: Jackson, Gson, and org.json Compared Java has three dominant JSON libraries, each with a different philosophy. Jackson is the ecosystem standard — it's what Spring Boot uses by default. Gson is Google's lightweight alternative. org.json is the oldest and most portable option. Understanding each one helps you make the right choice per project and read code from unfamiliar codebases. Jackson: The Ecosystem Standard Jackson's is the most feature-rich option and the default in Spring Boot, Quarkus, and Micronaut. Add it via Maven or Gradle: Basic serialization with pretty-printing uses the feature: Note that Jackson uses a space before the colon by default (). To change this, configure a custom . For most applications, the default is fine. Jackson also works directly…
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