All tools

cURL Builder

Network

Build cURL commands from URL, method, headers, and body

Fill in a URL, method, headers, and body and get a ready-to-run cURL command out, which beats hand-assembling flag syntax from memory, especially once auth headers and JSON bodies get involved. It handles basic multipart/form-data fields, though complex multi-file uploads may still need manual adjustment to the generated command afterward. The command is assembled entirely in the browser and never transmitted or logged anywhere, including whatever tokens or headers you typed in. It doesn't execute anything itself: you copy the output and run it yourself, or feed it straight into the companion cURL to Code tool if what you actually want is equivalent fetch, axios, Python, Go, PHP, or Ruby code rather than a shell command.

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How to use cURL Builder

  • 1.Fill in a URL, HTTP method, headers, and body to generate a ready-to-run cURL command without memorizing flag syntax.
  • 2.Add an Authorization header and JSON body to quickly build a command for testing an authenticated API endpoint.
  • 3.Copy the generated command into your terminal or paste it into the cURL to Code tool to convert it into a language of your choice.

Frequently asked questions

Is my data (headers, tokens, body) sent anywhere?
No, the command is assembled entirely in your browser — nothing is transmitted or logged.
Does it support file uploads or multipart form data?
Basic multipart/form-data fields are supported; for complex multi-file uploads, you may need to hand-edit the generated command.
Will the generated command actually run?
Yes, it produces standard cURL syntax that works in any terminal with cURL installed, but it doesn't execute the request for you — copy it and run it yourself, or paste it into an HTTP client.
Can I convert the command to code instead of running it?
Yes — paste the generated command into the cURL to Code tool to get equivalent fetch, axios, Python, Go, PHP, or Ruby code.

Use via API, SDK, or MCP

cURL# Free: 1,000 req/day · Pro: 10,000 req/day
curl -X POST https://api.utilix.tech/v1/tools/curl-builder \
  -H "Authorization: Bearer utx_live_..." \
  -H "Content-Type: application/json" \
  -d '{"url":"https://api.example.com/users","method":"GET","auth":{}}'

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