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Utilnivo

Developer

Utilnivo

cURL Builder

Build curl commands from method, URL, headers, and body.

No registration
  • On your device

Browse more in Developer or all tools.

Private on your device

Your information stays on your device and is not uploaded.

Related tools

Choose an HTTP method, URL, headers, and request body to generate a ready-to-run curl command. Building works on your device.

How to use this tool

1. Enter the request URL and HTTP method. 2. Add headers (Authorization, Content-Type). 3. Paste a JSON or text body if needed. 4. Copy the generated cURL. 5. Run locally and adjust flags (−i, −v, −L) as needed.

Worked example

Example 1: GET with Authorization: Bearer … for a private API smoke test. Example 2: POST application/json with a small payload to verify a webhook receiver.

When to use this

  • Reproducing a failing API call in the terminal.
  • Sharing a redacted request with teammates.
  • Converting a browser request into cURL.
  • Posting JSON to a webhook during setup.
  • Documenting auth header examples.

Common examples

  • GET with Bearer token header for API smoke tests.
  • POST JSON body to a webhook URL.
  • Custom User-Agent for bot-restricted endpoints.
  • PUT with Content-Type application/json.
  • Copy command and add −v locally for debugging TLS.

Common mistakes

  • Pasting live production secrets into chat.
  • Forgetting quotes around JSON bodies in shells.
  • Using GET with a body unexpectedly.
  • Ignoring TLS interception in corporate proxies.
  • Assuming the builder executes the request remotely.

How it works

Builds a cURL command from method, URL, headers, and body so you can replay API calls in a terminal. Does not execute the request on Utilnivo servers.

Limitations

Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.

Privacy and file handling

Your data stays on your device and is not uploaded.

Formula or method

Escapes shell-sensitive characters in header and body values. Output is a starting point—review secrets before sharing commands.

FAQ

Frequently asked questions

Does Utilnivo run the cURL request?

No. The builder only generates a command for you to run locally or in your own environment.

Can I include Authorization headers?

Yes, but treat tokens as secrets—avoid pasting production credentials into shared docs or screenshots.

How do I POST JSON?

Set method POST, Content-Type application/json, paste the body, then copy the command. Add −i or −v locally if you need response headers.

Part of these workflows

This tool is one step in a longer job. Jump straight to your step or open the full workflow guide.

Related pages

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