cURL Builder — Free Online Tool

Build cURL command from form.. cURL Builder is a free online tool from the ToolsRift Developer Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

Loading cURL Builder

How to use cURL Builder

Choose an HTTP method, enter the URL, add headers and a request body, and the tool assembles the correctly quoted cURL command for you to copy and run.

Frequently asked questions

What is cURL used for?

cURL is a command-line tool for making HTTP requests, widely used to test APIs, download files and reproduce browser requests in scripts.

How do I add a JSON body?

Set a Content-Type: application/json header and paste your JSON as the body — the builder wraps it with the -d flag and correct quoting.

Does it escape special characters?

Yes — the builder quotes headers and body so characters like spaces and quotes survive the shell without breaking the command.

More Developer Tools

cURL to Code
Convert cURL to JS/Python/PHP/Go.
JWT Debugger
Decode JWT segments and verify.
Chmod Calculator
Symbolic — octal permission grid.
Crontab Guru
Visual cron builder + readable output.
Semver Tools
Validate, compare and range-check semantic versions.
UUID Inspector
Detect UUID version, variant and embedded timestamp.

← View all Developer Tools