Java JSON Formatter

Format JSON in Java

Format and beautify JSON in Java. Learn how to parse, format, and work with JSON using popular Java libraries like Jackson, Gson, and org.json. Whether you're working with APIs, configuration files, or data processing in Java, our free online JSON formatter helps you create clean, readable JSON that integrates seamlessly with Java applications.

Quick Start with Java JSON:

Use the formatter above to format your JSON data
Copy the formatted JSON output
Use Java JSON libraries to parse and work with the data
Refer to the FAQ section below for Java-specific examples

Why Use Our Java JSON Formatter?

Format JSON before parsing in Java
Validate JSON syntax before using in your code
Beautify JSON for better readability
Test JSON parsing with Java libraries
Prepare JSON data for Java applications

Java JSON Best Practices

When working with JSON in Java, keep these tips in mind:

Always validate JSON before parsing in Java
Handle errors gracefully when parsing JSON data
Use proper type checking and validation in Java
Format JSON for better readability during development
Test JSON parsing with edge cases and malformed data

JSON Formatters for Other Languages

Working with JSON in other programming languages? Check out our formatters:

Frequently Asked Questions

How do I format JSON in Java?

With Jackson: `ObjectMapper mapper = new ObjectMapper().enable(SerializationFeature.INDENT_OUTPUT); String json = mapper.writeValueAsString(object);`. With Gson: `Gson gson = new GsonBuilder().setPrettyPrinting().create();`

How do I parse JSON in Java?

With Jackson: `ObjectMapper mapper = new ObjectMapper(); MyClass obj = mapper.readValue(jsonString, MyClass.class);`. With Gson: `Gson gson = new Gson(); MyClass obj = gson.fromJson(jsonString, MyClass.class);`

Which Java library is best for JSON?

Jackson is the most popular and performant. Gson is simpler and easier to use. org.json is lightweight but less feature-rich. Choose based on your needs.