Does this tool handle POST JSON payloads?

Yes, JSON payloads passed via -d or --data are automatically parsed into Dart maps or raw strings.

Updated: August 2026 • Verified v1.2

cURL to Dart Dio (Flutter) Request Converter

Developer ToolsNew

Local Browser Execution: Your input is processed locally in your browser and is not sent to UTL servers.

DioRequest = dio.request(url, data: payload, queryParameters: params, options: Options(method: METHOD, headers: hdrs))

Was this calculation helpful?

Understanding Your Results

Parses cURL command lines extracting HTTP method, URL endpoint, custom request headers, query parameters, and JSON or form payloads, generating strongly-typed Dart code utilizing the popular Dio networking package with Options and DioException handling.

Practical Guidance & Next Steps

Dio is the standard HTTP networking package for Flutter apps, supporting interceptors, global configuration, FormData, request cancellation, and robust error handling.

What is this?

A developer utility that converts command-line cURL syntax into ready-to-run Dart Dio HTTP client requests for Flutter applications.

How does it work?

1. Paste any cURL command line into the input editor. 2. The parser automatically extracts URL, HTTP verb, headers, and request body. 3. Copy the idiomatic Dart Dio asynchronous code with error handling.

Why use it?

Saves Flutter developers time by converting API test snippets into production-ready Dart networking code in seconds.

Technical Scope & Calculation Limitations

Pure client-side syntax parsing.

Frequently Asked Questions

While package:http is lightweight, Dio provides advanced features such as interceptors, global configuration, request cancellation, file downloading, and strongly-typed request options.

Windows Desktop & Widget Options