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JSON to Dart Class Generator
Generate a Dart model class with fromJson and toJson methods from a sample JSON object.
STEP 1
Start with your input
Edit the example or replace it with your own text.
How to use JSON to Dart Class Generator
- Paste or edit the json object.
- Select generate dart class to process the input locally in your browser.
- Review the output, then copy it or download the converted file.
Convert JSON to Dart Class without losing useful fields
Uses dynamic fields to preserve nested maps, lists and mixed JSON values. Generated identifiers are normalized and a mapping table preserves the original JSON keys.
Check the output before importing it
The converter reports invalid or unsupported input rather than guessing silently. Review the generated values in the destination application, especially date formats, nested data and identifiers that may have special meaning there.
Example input
{"first_name":"Ada","age":36,"active":true}Is my input stored?
No. This conversion runs in your browser and your input is not uploaded.
Is input uploaded?
Processing takes place in your browser. This tool does not send your input or selected files to a conversion API.