How to use the cURL Converter
Turn a curl command — copied from API docs, a terminal, Postman, "Copy as cURL" in browser DevTools, or a ticket — into ready-to-use code in the language you actually ship. Supports JavaScript fetch, Axios, Node.js (https / node-fetch), Python requests, Go, Java, C#, Ruby, PHP, and PowerShell. Preserves method, headers (auth, content-type, custom), query parameters, JSON body, and form data. Runs locally; cURL command never leaves your browser.
What it does
- Parses any
curl command — handles -X, -H, -d, --data-raw, --data-urlencode, --form, -u, --compressed, --insecure.
- Emits clean code for fetch, Axios, Node.js, Python requests, Go, Java, C#, Ruby, PHP, PowerShell.
- Handles JSON bodies (with proper escaping), form-encoded data, and multipart uploads.
- Preserves Basic auth, Bearer tokens, and custom auth headers.
- Removes shell line continuations (
\) and normalizes quoting.
- Reverse-direction: request → cURL for sharing in tickets.
When to use it
- Port a cURL command from API docs into your frontend or backend code.
- Reproduce a browser DevTools network request in Python or Go.
- Convert a Postman "Code" snippet into a different language.
- Generate a quick fetch wrapper for an experiment.
- Share a working example with a team that uses a different language.
- Build integration tests from a known-good cURL command.
How to use it
- Paste your
curl command (multi-line works — shell continuations are normalized).
- Pick the target language / library (fetch, Axios, Python requests, Go, etc.).
- Copy the generated snippet straight into your editor.
- For browser-side fetch with auth, double-check CORS — the original cURL succeeds outside CORS rules.
- Use the Request Snippet Generator for JSON-first input, or the HTTP Headers Parser to inspect just the headers.
Tips & pitfalls
- Browser CORS: a cURL command runs outside browser CORS, so a "Copy as cURL" snippet may not work from JavaScript without server-side CORS support.
- Preserve all
-H headers — auth and content-type often come from headers you forgot.
- Use
-d / --data-raw for JSON bodies; verify the converter emitted JSON.stringify or json= as appropriate.
- Multi-line cURL from
--next or piped output may be multiple requests — separate them first.
- For
--insecure (skip TLS verification), do not replicate this in production code — it disables certificate checks.
- Cookies pasted via
-b / --cookie often expire quickly — refresh and re-export.
FAQ
- How do I convert cURL to fetch? Paste the cURL, select fetch, and copy the generated JavaScript.
- How do I convert cURL to Python? Pick Python (requests) — the snippet uses the
requests library with the right method, headers, and JSON body.
- Does it support multipart uploads? Yes —
--form / -F flags are translated to multipart bodies in each target language.
- Why doesn't my fetch work in the browser when the cURL works? Browser fetch is subject to CORS — the server must allow the origin, methods, and headers. cURL ignores CORS.
- Is my cURL uploaded? No. Conversion runs in your browser. The cURL is never sent to a server.
- Can it produce a Postman collection? For Postman specifically, see the OpenAPI → Postman Exporter or paste the cURL into Postman's "Import" dialog.
Runs locally in your browser. No uploads. Watch out for browser CORS when porting a cURL to client-side fetch.
