JSONToTable

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How to Convert Dart to JSON - Step by Step Guide

Step 1

Input Your Dart Code

Start by pasting your Dart map, class, or data structure that needs to be converted to JSON format. The tool supports maps, lists, and class constructors perfect for Flutter development.

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Paste Dart code: Copy your Dart map or class directly into the editor
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Upload a file: Load Dart code from a .dart file on your computer
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Try samples: Click sample buttons to see different Dart patterns (maps, classes, nested structures)
Step 2

Click Convert Button

Click the green "Convert" button to send your Dart code to our Python backend API for processing. The converter transforms Dart syntax to JSON format, handling true/false, null values, and proper quote formatting.

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Boolean conversion: Dart true/false becomes JSON true/false
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Null handling: Dart null converts to JSON null
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Map support: Dart maps {'key': value} convert to JSON objects
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Class initialization: Dart classes Person(name: value) convert to JSON objects
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Nested structures: Handle complex Dart data hierarchies for Flutter apps
Step 3

Get Valid JSON Output

The tool produces properly formatted, valid JSON that's ready to use in your Flutter applications, REST APIs, or configurations.

Step 4

Copy or Download JSON

Copy the JSON to your clipboard or download it as a .json file for use in your Dart or Flutter projects.

What is Dart to JSON Conversion?

Dart to JSON conversion transforms Dart data structures like maps, lists, and classes into standard JSON format. This process converts Dart-specific syntax into JSON-compliant syntax for data interchange and API communication.

The conversion is essential for Flutter mobile applications, REST APIs, and Firebase integration where JSON is the standard format for data exchange. You can also convert other languages like Kotlin to JSON or Swift to JSON using our related tools.

Frequently Asked Questions

How do I convert Dart map to JSON?

Simply paste your Dart map into the converter. It will automatically convert Dart syntax ({'key': value}, true, false, null) to valid JSON format.

Does the converter handle nested Dart structures?

Yes! The converter properly handles nested maps, lists, and classes, converting them to equivalent JSON representations while maintaining the structure perfect for Flutter development.

What Dart data types are supported?

The converter supports Dart maps, lists, classes, strings, numbers (int and double), booleans (true/false), and null. These are converted to their JSON equivalents.

Is the output valid JSON?

Yes! The converter produces standard, valid JSON that can be used in any Flutter app, web service, or API.

Is the Dart to JSON converter free?

Yes, completely free with no limitations on data size or conversion frequency. Perfect for Flutter developers. No registration required.

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