cURL to Fetch Converter

Paste browser Copy as cURL output and turn it into readable fetch code without sending the request anywhere.

Also useful for: curl to fetch curl to javascript fetch copy as curl to fetch cURL to Fetch Converter

cURL to Fetch Converter

Runs in your browser. Inputs are not uploaded.
Input
Results
Summary: POST fetch snippet generated for https://api.example.com/v1/items. No issues found.

Stats
- Method: POST
- Headers: 2

Issues
- No issues found.

Output
const response = await fetch("https://api.example.com/v1/items", {
  method: "POST",
  headers: {
    "Authorization": "Bearer token",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
  "name": "Widget",
  "active": true
})
});

if (!response.ok) {
  throw new Error(`Request failed: ${response.status}`);
}

const data = await response.json();

cURL to Fetch Converter Example Run

Convert browser Copy as cURL output into readable fetch code.

Sample inputs
curl 'https://api.example.com/v1/items' -X POST -H 'Authorization: Bearer token' -H 'Content-Type: application/json' --data '{"name":"Widget","active":true}'

Generated result
Summary: POST fetch snippet generated for https://api.example.com/v1/items. No issues found.

Stats
- Method: POST
- Headers: 2

Issues
- No issues found.

Output
const response = await fetch("https://api.example.com/v1/items", {
  method: "POST",
  headers: {
    "Authorization": "Bearer token",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
  "name": "Widget",
  "active": true
})
});

if (!response.ok) {
  throw new Error(`Request failed: ${response.status}`);
}

const data = await response.json();

What the cURL to Fetch Converter Checks

  • Request URL and method

    The parser extracts the target URL and respects common -X method flags.

  • Header handling

    Headers from -H flags are carried into the fetch options object.

  • Body formatting

    JSON request bodies are parsed and emitted with JSON.stringify when possible.

  • Unsupported shell behavior

    Shell substitutions, file uploads, and command execution are not run in the browser.

  • Secret visibility

    Authorization headers remain in local output so you can remove them before sharing code.

cURL to Fetch Converter Questions

  • Q: Does the cURL to Fetch converter upload my cURL command? A: No. Inputs are processed in your browser, and pasted content is not sent to analytics or a server.
  • Q: What should I paste into the cURL to Fetch converter? A: Paste a single cURL command, ideally from browser DevTools Copy as cURL.
  • Q: What can I copy or download? A: You can copy or download the generated JavaScript fetch snippet.
  • Q: What does the cURL to Fetch converter not verify? A: It does not execute the request, handle every shell-specific cURL feature, or guarantee production-ready retry/error handling.

Use cURL to Fetch Converter with an LLM

Copy the prompt or pass the llms.txt contract link to your assistant.

Prompt
Use the CleanUtils cURL to Fetch Converter tool for this request.
Tool contract: https://cleanutils.com/developer-tools/curl-to-fetch-converter/llms.txt

Read the llms.txt contract, ask me for any missing required input, then follow the contract exactly. If the contract includes JavaScript, run `runCleanUtilsTool(userInput)` in a sandboxed JavaScript runtime and return the result with any warnings or errors.