cURL to Code Converter
Paste a raw cURL command (e.g. from Chrome DevTools "Copy as cURL") to generate clean, executable Python, JavaScript, Go, or PHP code.
⚡ DevTools Tip:
In Google Chrome, Firefox, or Safari, press
F12 → open the Network tab → right-click any API request → select Copy as cURL (bash) → paste it below to instantly get clean Python requests or JavaScript fetch code.
Parsed Request:
POST
https://api.sys-metrics.com/v1/telemetry
2 Headers
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How cURL to Code Conversion Works
The cURL utility (Client URL) is the universal standard for describing HTTP network requests across operating systems, terminal shells, and API documentation. However, when building automated microservices or writing scripts, developers need to convert these terminal one-liners into native language clients like Python requests or JavaScript fetch.
Common cURL Flags Decoded
| cURL Flag | Full Option Name | HTTP Translation / Meaning |
|---|---|---|
-X [METHOD] |
--request |
Specifies the custom HTTP verb (e.g. GET, POST, PUT, DELETE, PATCH). |
-H "[Header]" |
--header |
Injects custom HTTP request headers such as Authorization, Content-Type, or Accept. |
-d '[data]' |
--data or --data-raw |
Sends HTTP POST data payload. When sending raw JSON strings, it sets the request body. |
-u [user:pass] |
--user |
Specifies HTTP Basic Authentication credentials, automatically base64-encoded into the Authorization: Basic ... header. |
-A "[string]" |
--user-agent |
Sets custom client identification string in the User-Agent header. |
--compressed |
--compressed |
Requests compressed responses (gzip, deflate, br) and automatically decompresses the stream. |
Choosing the Right HTTP Library for Your Stack
- Python (requests vs. httpx):
requestsremains the gold standard for synchronous HTTP scripting. For modern asynchronous Python (usingasyncioandFastAPI),httpxprovides drop-in compatibility with full HTTP/2 support. - JavaScript (Native Fetch vs. Axios): The native
fetch()API is globally supported across modern browsers, Node.js 18+, Cloudflare Workers, and Deno with zero npm dependencies.axiosoffers automatic JSON parsing, request interceptors, and client timeout defaults. - Go (net/http): Go's standard library
net/httpis performant and concurrency-safe out of the box with connection pooling and context timeouts.
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