JSON to Java Class
JSON & Data Format · Free Online Tool
Convert JSON to Java class with type inference.
import java.util.List;
public class Root {
private String name;
private Long age;
private Boolean active;
private Double score;
private Address address;
private List<Object> skills;
public String getName() { return name; }
public void setName(String name) { this.name = name; }
public Long getAge() { return age; }
public void setAge(Long age) { this.age = age; }
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 Address getAddress() { return address; }
public void setAddress(Address address) { this.address = address; }
public List<Object> getSkills() { return skills; }
public void setSkills(List<Object> skills) { this.skills = skills; }
}
public class Address {
private String city;
private String zip;
public String getCity() { return city; }
public void setCity(String city) { this.city = city; }
public String getZip() { return zip; }
public void setZip(String zip) { this.zip = zip; }
}Wrapper Types
Long, Double, Boolean, String — nullable boxed types.
Nested Classes
Objects become named classes, recursively.
Getters & Setters
Standard JavaBean accessors generated for every field.
How to Use JSON to Java Class
- 1Paste your input data (JSON, CSV, XML, YAML, etc.) into the input field.
- 2The tool automatically processes and validates your data.
- 3Review the converted output in the result panel.
- 4Copy or download the converted result.
Features
- ✓100% free — no signup, no subscription, no ads
- ✓Runs entirely in your browser — data never leaves your device
- ✓Fast and lightweight — instant results
- ✓Cross-platform — works on desktop, tablet, and mobile
Frequently Asked Questions
Can I convert large JSON files?
Yes, but performance depends on your browser. Files up to 10MB are generally handled well.
Do you validate the input?
Yes, most tools validate input and show error messages with line numbers for invalid data.
Can I download the converted result?
Yes, most conversion tools provide a download button for the output file.
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