JSON Formatter for Java
Free online json formatter with Java code examples
Working with json formatter in Java? Our free online json formatter helps Java developers format, validate, and process data instantly. Below you will find Java code examples using Gson / Jackson so you can achieve the same result programmatically in your own projects.
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Open JSON FormatterJava Code Example
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
String json = "{\"name\":\"Alice\",\"age\":30}";
Gson gson = new GsonBuilder().setPrettyPrinting().create();
Object parsed = gson.fromJson(json, Object.class);
String formatted = gson.toJson(parsed);
System.out.println(formatted);Quick Setup
Library: Gson / Jackson
<!-- Maven: com.google.code.gson:gson:2.10.1 -->Java Tips & Best Practices
- Use GsonBuilder().setPrettyPrinting() for formatted output
- Jackson's ObjectMapper is faster for large payloads
- Both libraries support streaming for very large files