How do I convert cURL to JavaScript fetch?

To convert cURL to JavaScript fetch: 1) Paste your cURL command into our tool, 2) Select "Fetch" as the output format, 3) Choose async/await or promise syntax, 4) Click convert to get working JavaScript code. Our tool automatically parses headers, body, method, and URL from your cURL command.

Does this converter support TypeScript output?

Yes! Our cURL converter generates both JavaScript and TypeScript code. When TypeScript is enabled, we generate type annotations, interfaces for request/response data, and properly typed fetch/axios calls. This is perfect for TypeScript projects requiring type-safe API calls.

What output formats are supported for cURL conversion?

We support 3 output formats: 1) Fetch API - modern browser-native HTTP client, 2) Axios - popular promise-based HTTP library, 3) XMLHttpRequest (XHR) - legacy browser API. Choose based on your project requirements and browser support needs.

How does the converter handle cURL headers and authentication?

Our tool parses all cURL headers (-H flags), including Authorization headers (Bearer tokens, Basic auth), Content-Type, Accept, and custom headers. They are converted to the appropriate format for your chosen output (headers object for Fetch/Axios, setRequestHeader calls for XHR).

Can this tool convert cURL with POST data and JSON bodies?

Yes! We fully support cURL commands with -d/--data flags, JSON bodies (-d '{"key":"value"}'), form data (-F flags), and URL-encoded data. The tool correctly formats the body and sets appropriate Content-Type headers in the generated code.

What error handling options are available?

We offer 3 error handling strategies: 1) Try-catch - wrap async/await in try-catch blocks, 2) Then-catch - use .then().catch() promise chains, 3) None - generate code without error handling. Choose based on your coding style and project requirements.

Does the converter add code comments to explain the generated code?

Yes! You can enable the "Include Comments" option to add helpful explanations throughout the generated code. Comments explain the URL, method, headers, body structure, and error handling, making the code easier to understand and modify.

Is this cURL to code converter free?

Yes, our cURL converter is completely free with no signup required. You can convert unlimited cURL commands, use all features including TypeScript support and multiple output formats, and copy the generated code instantly. We built this to help developers integrate APIs faster.

Free cURL to Code Converter

Free cURL to JavaScript/TypeScript Converter Online

Convert cURL commands to JavaScript and TypeScript instantly. Generate Fetch API, Axios, or XHR code with automatic header parsing, body handling, and error management. No signup required—paste your cURL and get working code instantly.

Output Formats

JS + TS

Language Support

Options

Curl to Fetch/Axios Converter

Convert curl commands to modern JS/TS code

Output Type

Error Handling

TypeScript

Async/Await

Generate Types

Include Comments

Curl Command

cURL Converter Features

Everything you need to convert cURL to code

Convert to Fetch API, Axios, or XMLHttpRequest

Generate TypeScript code with type definitions

Choose between async/await or promise chains

Automatic TypeScript interface generation

Multiple error handling strategies (try-catch, then-catch, none)

Parse headers, body, form data, and query parameters

Include helpful code comments

Copy-ready code that works immediately

cURL Conversion Use Cases

Real-world scenarios where cURL conversion saves time

API Integration Development

Convert API documentation examples from curl to working JavaScript/TypeScript code. Our tool automatically parses complex curl commands with multiple headers, authentication tokens, and request bodies, generating production-ready code that saves hours of manual conversion work.

TypeScript Projects

Generate fully-typed TypeScript code with interfaces for request and response types. Unlike basic converters that only provide JavaScript, our tool creates TypeScript code with proper type definitions—a feature most converters skip, making it perfect for TypeScript-first projects.

Framework Migration

Convert curl commands to your preferred HTTP client (Fetch, Axios, or XHR). Our tool supports multiple output formats, allowing you to choose the best option for your project, whether you're using modern Fetch API, popular Axios library, or legacy XMLHttpRequest.

Testing & Documentation

Convert API test commands to executable test code. Our tool generates code with error handling, making it easy to create integration tests, API documentation examples, and code samples that developers can copy and use immediately.

Why Use Our Free cURL Converter?

Multiple Output Formats

Choose between Fetch, Axios, or XMLHttpRequest. No other converter offers this flexibility, letting you match your project's HTTP client preference.

TypeScript Support

Generate TypeScript code with interfaces and type annotations. Most converters only provide JavaScript, but we include full TypeScript support with type generation.

Error Handling Options

Choose your preferred error handling style: try-catch, promise chains, or none. Our tool adapts to your coding preferences and project standards.

Production Ready

Generate code that follows best practices and works immediately. All code includes proper error handling, type safety (when using TypeScript), and helpful comments.

cURL Converter FAQ

Common questions about cURL to JavaScript conversion

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Start Converting cURL Commands Now

Free cURL to JavaScript converter with TypeScript support. No signup required.