cURL to code converter
Convert cURL commands into clean, production-ready code in Python, JavaScript, TypeScript, Go, PHP, Rust, and Java with 100% client-side privacy.
cURL to Code Converter: Instant Multi-Language HTTP Client Generation (Python, JavaScript, Go, Rust, PHP, Java)
When integrating third-party REST APIs, API documentation and developer consoles (such as Stripe, Twilio, OpenAI, GitHub, or AWS) predominantly provide raw cURL commands as their canonical request examples. However, manually translating cURL shell flags into production programming code is time-consuming and error-prone.
This cURL to Code Converter parses your shell commands 100% locally in your browser and automatically generates idiomatic, production-ready code across 8 major languages and libraries: Python (requests & httpx), JavaScript / TypeScript (fetch & axios), Go (net/http), PHP (cURL & Guzzle), Rust (reqwest), Java (HttpClient), and Dart (http).
1. How cURL Flags Map to Application Code
| cURL Flag | Flag Meaning | Python (requests) |
JavaScript (fetch) |
Go (net/http) |
|---|---|---|---|---|
-X POST |
HTTP Method | requests.post(...) |
method: 'POST' |
http.NewRequest("POST", ...) |
-H "Content-Type: app/json" |
HTTP Header | headers={"Content-Type": "..."} |
headers: { "Content-Type": "..." } |
req.Header.Set("Content-Type", "...") |
-d '{"key": "val"}' |
Request Body | json={"key": "val"} |
body: JSON.stringify({...}) |
bytes.NewBuffer(payload) |
-u "user:pass" |
Basic Auth | auth=("user", "pass") |
headers: { 'Authorization': 'Basic ...' } |
req.SetBasicAuth("user", "pass") |
-H "Authorization: Bearer ..." |
Bearer Token | headers={"Authorization": "Bearer ..."} |
headers: { 'Authorization': 'Bearer ...' } |
req.Header.Set("Authorization", "Bearer ...") |
2. Why Client-Side Conversion Is Vital for Security
Many popular online “curl to code” converters transmit your pasted shell command to remote backend web servers for parsing. This presents severe security risks:
- Exposed API Secret Keys: Pasting cURL commands containing production tokens (e.g.
Authorization: Bearer sk_live_...) into remote web services exposes your production credentials to server logs, proxy caches, and potential leaks. - PII and Internal Endpoints: Staging URLs, internal VPN IPs, and customer identifiers in payloads are inadvertently shared with third-party servers.
DevTol’s Invariant Guarantee: This converter executes entirely in your local browser sandbox. No network requests are made, no telemetry logs your inputs, and your sensitive credentials remain 100% private to your workstation.
3. Supported Languages & Frameworks
Python: requests vs httpx
requests: The battle-tested standard for synchronous Python automation, scripting, and Django/Flask applications.httpx: The modern async-capable HTTP client for FastAPI, asyncio services, and HTTP/2 support.
JavaScript & TypeScript: fetch vs axios
- Native
fetch: Standard Web API built into all modern browsers and Node.js 18+, requiring zero external dependencies or npm packages. axios: The industry-standard client offering request/response interceptors, automatic JSON transformation, and robust timeout handling.
Go: net/http Standard Library
Generates clean, idiomatic Go code using http.NewRequestWithContext and proper resource cleanup with defer resp.Body.Close().
Rust: reqwest & Tokio Async
Generates modern, asynchronous Rust code using reqwest::Client compatible with tokio multi-threaded async runtimes.
4. Frequently Asked Questions (FAQ)
Does this tool support multiline cURL commands?
Yes. It automatically handles shell line-continuation backslashes (\) and multiline formatting copied directly from Linux or macOS terminals.
Can it convert multipart/form-data or binary uploads?
The parser accurately extracts both JSON bodies (-d / --data-raw) and form-encoded data, formatting the target code into appropriate payload dictionaries or byte buffers.
Are my secret API keys safe?
Yes, completely. All parsing and code synthesis logic executes in client-side JavaScript. Zero network requests are initiated, guaranteeing that no server ever receives your keys.