Does this tool send my curl command anywhere?

No. Parsing and code generation both happen in your browser with JavaScript. The command, headers, and any tokens inside it are never uploaded to a server.

Which curl flags are supported?

-X/--request, -H/--header, -d/--data/--data-raw/--data-binary, -F/--form, -u/--user, -b/--cookie, -A/--user-agent, -e/--referer, -G/--get, and -k/--insecure. Common no-op flags like --compressed, -s, -v, and -L are ignored since Net::HTTP handles them by default.

Why does the body use a hash with to_json instead of a plain string?

When the body starts with { or [ and parses as valid JSON, the tool builds a Ruby hash and calls .to_json on it, adding a Content-Type: application/json header. Non-JSON bodies are set as a plain string on request.body.

What happens with -F form fields?

Each -F field becomes an entry in a form_data array passed to request.set_form(form_data, 'multipart/form-data'). A value starting with @ is treated as a file path and wrapped in File.open, matching how curl uploads files.

What if my curl command spans multiple lines?

Backslash line continuations, the format most terminals and browser "Copy as cURL" buttons produce, are joined automatically before parsing.

Does -k generate code that skips certificate verification?

Yes. -k/--insecure adds require 'openssl' and sets http.verify_mode = OpenSSL::SSL::VERIFY_NONE, matching curl's insecure flag. Remove that line for production code.

cURL to Ruby

Name: cURL to Ruby
Availability: InStock
Author: Nham Vu

Paste a curl command and get equivalent Ruby Net::HTTP code, with headers, JSON body, cookies, and auth already translated.

curl Command

Ruby (Net::HTTP)

Summary

Paste a curl command and get equivalent Ruby Net::HTTP code, with headers, JSON body, cookies, and auth already translated.

How it works

Paste a curl command, including one copied from a browser devtools network tab.
The parser tokenizes the command, honoring quotes and backslash line continuations.
Flags such as -X, -H, -d, -b, -u, -F, and -G are mapped to their Net::HTTP equivalents.
A JSON body is detected automatically and rendered as a Ruby hash with a to_json call.
The generated Ruby script appears in the output box, ready to copy and run.

Use cases

Turn a "Copy as cURL" request from browser devtools into a Ruby test script.
Reproduce an API call from documentation or a support ticket in Ruby.
Convert a curl example from a README into a starting point for a client library.
Debug an API integration by replaying the exact request curl sent, in Ruby.
Translate a webhook test command into a repeatable Ruby script.
Build a quick script around a request captured from a mobile app proxy.

Frequently Asked Questions

Last updated: 2026-07-23 · Reviewed by Nham Vu