What is a JSON to Dart model generator?

It converts example JSON into Dart classes so developers can parse API responses faster.

Does it support null-safety?

Yes. The advanced generator supports null-safety strategies and can generate nullable fields based on JSON data.

Can it generate fromJson, toJson, and copyWith?

Yes. It supports fromJson, toJson, copyWith, toString, fromList, defaults, JSON keys, enum detection, and package-ready modes.

Does it support Freezed or json_serializable?

Yes. It can generate package-ready structures for Flutter/Dart workflows that use json_serializable, Freezed, or Equatable.

Alexonic ToolsPractical tools for developers, finance, and daily work

All tools UltimateCore

UltimateCore

Flutter / DartProfessional Model Generator

JSON to Dart Model

Generate advanced Flutter/Dart models with null-safety strategies, package modes, enum detection, response-wrapper detection, separate-file output, JSON keys, defaults, and defensive parsing.

Related tools

JSON tools

JSON to Flutter Model

Generate advanced Flutter models with Freezed, json_serializable, Equatable, copyWith, fromList, defaults, enums, and response wrapper detection.

JSON tools

JSON Formatter / Beautifier

Pretty-print JSON with readable indentation.

JSON tools

JSON Validator

Validate JSON syntax and show a clear status.

JSON tools

JSON to Java POJO

Generate Java POJO classes from JSON.

Help & answers

Frequently Asked Questions

Important disclaimer: Alexonic Tools is completely free to use. There is no charge, and we do not save tool inputs or generated results. We value customer privacy and keep building and fixing each day. Always verify important financial, payroll, legal, tax, business, or production-code results before relying on them. If you see an issue, need a tool, or require an update, send feedback to the developer.