cURL to Dart & Flutter Converter

Convert cURL commands into clean, sound null-safe Dart 3 code using package:http, Flutter's Dio library, or native dart:io HttpClient with full header, authentication, and payload support.

At a glance

cURL to Dart Converter is a free web tool that converts cURL commands to modern Dart and Flutter code with package:http, Dio, and dart:io HttpClient. It automatically formats Bearer tokens and Base64 encodes Basic Authentication credentials. Adheres to modern Dart 3 null-safety conventions with Future<void> async/await syntax. All processing is local: nothing is uploaded, and no account is required.

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100% Client-Side In-Browser cURL to Dart & Flutter Converter

Convert cURL commands to modern Dart 3 & Flutter code with package:http, Dio, or native dart:io HttpClient. 100% private in browser memory.

Local & Private Instant Conversion
Client:
cURL Command 0 chars
1
Ready
Method: POST Headers: 0
Dart Code Output package:http
1 
// Generating Dart code...
Dart 3+ / Flutter Compatible
0 lines
Flutter / Dart Dependency Setup
pubspec.yaml
# Run in your Flutter or Dart project root:
dart pub add http
# or flutter pub add http

package:http & Dio Support

Seamlessly switch between Dart's canonical package:http, the powerful Flutter community favorite Dio, and zero-dependency native dart:io HttpClient.

Auth & Payload Handling

Automatically encodes Basic Auth credentials (base64Encode), extracts Bearer tokens, formats complex JSON maps and lists, and handles query strings with zero syntax errors.

100% Client-Side Privacy

No telemetry, zero server backend calls. All command tokenization and Dart compilation execute entirely inside your web browser memory at $0.00 marginal cost.

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Why Use This cURL to Dart Converter?

package:http & Dio Support: Generate canonical Dart package:http requests or popular Flutter Dio calls.
dart:io HttpClient Alternative: Built-in standard library implementation with zero external dependencies.
Authentication Handling: Automatically formats Bearer tokens and Base64 encodes Basic Authentication credentials.
Smart Body Detection: Parses JSON payloads into formatted Dart Map/List literals or handles raw data strings.
Sound Null-Safety: Adheres to modern Dart 3 null-safety conventions with Future<void> async/await syntax.
100% In-Browser Privacy: All command parsing and code generation occur strictly inside your local browser memory.

How to Use cURL to Dart Converter

1

Paste Your cURL Command

Paste your cURL command into the input editor or choose one of the preset samples.

2

Configure Dart Client Library

Select your preferred client (package:http, Dio, or dart:io HttpClient) and toggle options.

3

Copy or Download Dart Code

Click 'Copy' to copy the generated Dart script or download it as an api_request.dart file.

Worked example: cURL to Dart Converter

Executed entirely inside your local browser memory using modern Web APIs. The engine verifies input syntax, performs deterministic transformation, and exposes instant copy or download options.

Sample CURL Data Source 
sample_payload.curl (Valid format conforming to CURL specification)
Resulting DART Output Processed 
converted_result.dart (100% client-side)

Technical Specifications & Engine Details

Technical specifications and engine details for cURL to Dart Converter
Specification Details
Supported Formats CURL, TEXT, SH → DART, TEXT
Execution Mode 100% Client-Side In-Browser (client)
Browser Requirements Requires modern web browser with ECMAScript 6+ and standard DOM Web APIs.
Performance Constraints Client browser memory limit (typically 1–2 GB RAM); processing speed depends on local device CPU.
Maintained by Pragyan Pahadi

100% Client-Side Privacy Guarantee

All cURL command parsing and Dart code generation run 100% locally in your browser memory. Your URLs, headers, and credentials never leave your machine.

Frequently Asked Questions

How does this tool convert cURL to Dart code?
It tokenizes your cURL command, parses HTTP method, headers, auth, cookies, and data, and generates production-ready Dart 3 scripts using package:http, Dio, or dart:io HttpClient.
Can I use the generated code directly in Flutter projects?
Yes! Both package:http and Dio are standard Flutter HTTP clients. You can copy the code straight into your Flutter services or controllers.
Does it support Basic Authentication (-u)?
Yes. Basic Auth (-u user:pass) credentials are automatically encoded using base64Encode(utf8.encode('...')) and passed as an Authorization header.
How does it handle JSON request bodies?
It automatically parses JSON bodies into Dart literals with jsonEncode for package:http and native Maps for Dio.

Methodology

Rankings and recommendations here are never paid for.

Last updated .

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