JSON To JAVA Converter for POJOs, Jackson & Gson JSON Parsing

Generate Java POJO classes or JSON parsing code using Jackson JsonNode or Gson JsonObject instantly. Fast, secure, and developer-friendly tool.

Mode

Root class

Package

Indent

Use Lombok (@Data)Add @JsonProperty for renamed keysPrivate fieldsArrays become List<T>; mixed arrays fall back to List<Object>.

JSON Input

Must be valid JSON

Tip: For POJOs, the best results come from consistent arrays (all objects with same keys).

Java Output (POJO)

import com.fasterxml.jackson.annotation.JsonProperty;
import java.util.List;

public class Root {

  private Long id;

  private String name;

  private Boolean active;

  private Double score;

  private List<String> tags;

  private Profile profile;

  private List<Items> items;

  public Long getId() {
    return id;
  }
  
  public void setId(Long id) {
    this.id = id;
  }

  public String getName() {
    return name;
  }
  
  public void setName(String name) {
    this.name = name;
  }

  public Boolean getActive() {
    return active;
  }
  
  public void setActive(Boolean active) {
    this.active = active;
  }

  public Double getScore() {
    return score;
  }
  
  public void setScore(Double score) {
    this.score = score;
  }

  public List<String> getTags() {
    return tags;
  }
  
  public void setTags(List<String> tags) {
    this.tags = tags;
  }

  public Profile getProfile() {
    return profile;
  }
  
  public void setProfile(Profile profile) {
    this.profile = profile;
  }

  public List<Items> getItems() {
    return items;
  }
  
  public void setItems(List<Items> items) {
    this.items = items;
  }

  // Nested classes

  public static class Profile {

    private String city;

    private Object zip;

    public String getCity() {
      return city;
    }
    
    public void setCity(String city) {
      this.city = city;
    }

    public Object getZip() {
      return zip;
    }
    
    public void setZip(Object zip) {
      this.zip = zip;
    }
  }

  public static class Items {

    private String sku;

    private Long qty;

    public String getSku() {
      return sku;
    }
    
    public void setSku(String sku) {
      this.sku = sku;
    }

    public Long getQty() {
      return qty;
    }
    
    public void setQty(Long qty) {
      this.qty = qty;
    }
  }

  public static class Items2 {

    private String sku;

    private Long qty;

    public String getSku() {
      return sku;
    }
    
    public void setSku(String sku) {
      this.sku = sku;
    }

    public Long getQty() {
      return qty;
    }
    
    public void setQty(Long qty) {
      this.qty = qty;
    }
  }
}

Dependencies you might need:jackson-annotations (optional), lombok (optional)

Why Choose Our JSON to Java Code Generator?

Instant Java Code Generation

Convert JSON into clean Java source code instantly. Generate POJO classes, Jackson JsonNode parsing, or Gson JsonObject code in one click.

Multiple Output Options

Choose between Java POJO classes, Jackson JsonNode parsing snippets, or Gson JsonObject parsing code based on your project needs.

Nested & Complex JSON Support

Handles deeply nested JSON, arrays, and mixed data types. Generates nested static POJO classes with accurate field mapping.

Developer-Friendly & Clean Code

Generates readable, well-structured Java code following best practices. Perfect for REST APIs, backend services, and microservices.

100% Secure & Private

All JSON processing happens locally in your browser. No data is uploaded, stored, or shared. Your code stays private.

Free & No Registration

Use the tool completely free with no signup required. Paste JSON, generate Java code, and copy instantly.