cURL to Code Converter
Convert cURL requests copied from DevTools into production-ready API client code in JavaScript, TypeScript, Python, Go, Rust, and PHP.
How to Use cURL to Code
Right-click any network request in Chrome or Firefox DevTools, select Copy → Copy as cURL, and paste it into the editor above. The tool automatically maps headers, query parameters, authorization tokens, and request bodies into your chosen programming language.
🔒 Zero Credential Leaks
Your API keys, Bearer tokens, and cookies remain 100% private in client memory. Nothing is sent to any remote server.
⚡ Multi-Language Support
Switch between modern asynchronous clients: native fetch, axios, Python httpx, Go net/http, and Rust reqwest.
📦 Automated JSON Formatting
Payloads are automatically parsed and formatted into native language dictionary, struct, or object syntax.
From CLI cURL to Production HTTP Clients
While command-line cURL is the undisputed standard for ad-hoc debugging, running external shell processes in production application code introduces critical security vulnerabilities and performance bottlenecks:
| Evaluation Factor | cURL via Shell Exec | Native HTTP Client Code |
|---|---|---|
| Security Posture | Extreme risk of shell injection if parameters contain unsanitized input | Safe: Native socket APIs with parameterized buffers |
| TCP Connection Reuse | Spawns a new OS process and performs full TCP/TLS handshake every call | High Throughput: Persistent connection pools (HTTP Keep-Alive) |
| Concurrency & Async | Blocks thread or requires heavy process fork wrappers | Non-blocking: Node.js event loop, Go goroutines, Rust async/await |
| Memory Overhead | 20–50MB per spawned child process | < 50KB per in-memory connection handle |
Production Best Practices
- Always Set Explicit Timeouts: Never rely on default unbounded socket timeouts. In Go, always configure
http.Client{ Timeout: 10 * time.Second }. In Node.js Fetch, pass anAbortSignal.timeout(10000). - Reuse Client Instances: In Go, Python (Requests/HTTPX Session), and Rust (reqwest Client), instantiate a single global client to leverage the internal connection pool. Creating new client instances per request destroys connection reuse benefits.
- Close Response Bodies: In Go, always ensure
defer res.Body.Close()is executed and read to completion (or discarded viaio.Copy(io.Discard, res.Body)) to return the underlying TCP connection to the pool.
Frequently Asked Questions
How do I copy a cURL command from Chrome or Firefox DevTools?
Why convert cURL to native language HTTP clients?
Does this tool support reverse conversion (Code to cURL)?
Are sensitive Bearer tokens and cookies transmitted to your server?
Which HTTP client libraries are supported?
About This Tool
Paste a cURL command (typically copied straight from Chrome or Firefox DevTools' Network tab) and this
tool parses its flags, headers, auth, and body into working client code for seven language and library targets.
The swap button (⇄) reverses the direction too: paste a fetch(), Axios, or Python
requests call and get back the equivalent cURL command.
It generates full request code, not just the payload. If you only want the JSON body extracted from a cURL command without the surrounding client boilerplate, use cURL to JSON instead.
Key Features
- Seven output targets: JS/TS Fetch, Axios, Python Requests, Python HTTPX, Go net/http, Rust reqwest, and PHP Guzzle.
- Bidirectional conversion: the swap control reverses direction, turning client code back into a cURL command.
- Header & auth mapping: Authorization, cookies, and custom headers carry over into each target's native syntax.
- Automatic body formatting: JSON payloads are parsed and re-emitted as a native dict, struct, or object literal.
- Copy or download: export the generated code with the correct file extension for the selected language.
