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JSON to Java Online Free

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Generate Java POJOs with Jackson @JsonProperty annotations from JSON.

  • Processed in your browser
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  • Nothing uploaded by default

Examples

POJO

Emits a public class with annotated fields.

{"id":1,"name":"ToolBay"}

How JSON to Java works

Generate Java POJOs with Jackson @JsonProperty annotations from JSON. Output is Java-specific. Runs in your browser.

  1. 1. Paste JSON. Use a real API response so nested types come through.
  2. 2. Check the Java output. Scan names, optionals, and nested types.
  3. 3. Copy the code. Drop it into your project and adjust if the sample was incomplete.
  • Generate Java models from a real API JSON sample
  • Paste the output into an existing Java project
  • POJO
Which JSON library is assumed?
Jackson with @JsonProperty on public fields.

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