Fetch To Curl Converter
Turn a JavaScript fetch() call into a ready-to-run curl command. Paste your fetch code, press Convert, and copy the equivalent curl with method, headers and body — parsed safely, never executed.
Your fetch() call
Curl command
Detected parts
| Part | Value |
|---|
How to use
- Paste a JavaScript
fetch(url, options)call into the input box. - Press Convert to curl. The command appears with method, headers and body detected.
- Press Copy curl and paste it into your terminal.
- Try the sample button to see a full POST example.
Note: This parser uses simple pattern matching, not code execution. Complex dynamic expressions may need small manual fixes after conversion.
Tips
- Useful for testing APIs you already call in JavaScript — same request, now from the terminal.
- Bearer tokens and auth headers are copied into
-Hflags automatically. - JSON bodies are kept as-is with the
-dflag and the right Content-Type header. - Relative URLs like
/api/usersare converted as-is — add your host in front if needed.
Frequently Asked Questions (FAQ)
How do I convert fetch to curl?
Paste your JavaScript fetch() call into the box and press Convert. The tool reads the URL, method, headers and body and builds the matching curl command for you.
Is my code sent to a server?
No. Your fetch code is parsed inside your own browser only. It is never executed and never uploaded anywhere.
Does it support POST requests with JSON bodies?
Yes. POST, PUT, PATCH and DELETE requests with headers and JSON or text bodies are converted, with the body included via the curl -d option.
What happens to my Authorization header?
It is copied into a curl -H flag automatically, so the converted command works the same in your terminal.