cURL Command Generator
Generate cURL commands for any HTTP request with our free cURL command generator. Select your HTTP method, enter the URL, add custom headers, set the request body, configure authentication (Basic, Bearer, Digest), and enable advanced options like redirect following and verbose output. The generated command updates in real-time with both multi-line and single-line formats - all processed locally in your browser with no signup required.
Build cURL commands visually with our free cURL command generator. Select HTTP method, enter a URL, add headers, set request body, configure authentication, and toggle advanced options. The generated command updates in real-time as you configure each option. All generation is performed locally in your browser.
No custom headers added.
Advanced Options
curl \
'https://example.com/api/endpoint'https://example.com/api/endpoint-X / --requestSpecify HTTP method (GET, POST, PUT, etc.)-H / --headerAdd custom HTTP header-d / --dataSend data in POST/PUT request body-u / --userBasic/Digest authentication credentials-L / --locationFollow HTTP redirects-k / --insecureSkip TLS certificate verificationWhy Use Our cURL Command Generator?
Instant cURL Command Generation
Our cURL command generator builds complete curl commands from an intuitive form interface. Select HTTP method, enter a URL, add custom headers, set request body, configure authentication, and toggle advanced options - all with a generated command that updates in real-time as you configure each option.
Multi-Line & Single-Line Output
The cURL command generator displays commands in both multi-line format (with \ line continuations for readability) and single-line format (for quick terminal paste). Toggle between them with a single click and copy the command directly to your clipboard.
Secure & Private Browser-Based Generation
Your API URLs, authentication tokens, and request data never leave your device. All cURL command generation is performed locally in your browser using JavaScript. No data is sent to any server, making this the most private cURL command generator available online.
cURL Command Generator Online - No Installation
Use our free cURL command generator directly in your browser with no downloads, no plugins, and no account required. Includes preset examples for common API patterns, a built-in cURL flag reference guide, and support for all major HTTP methods and authentication schemes.
Common Use Cases for cURL Command Generator
API Development & Testing
Developers building or testing REST APIs can use the cURL command generator to quickly create properly formatted curl commands without memorizing all the flags. Set the HTTP method, add required headers, include authentication, and paste the command directly into your terminal for instant API testing.
Bug Reproduction & Debugging
Support engineers and QA testers can use the cURL command generator to create reproducible curl commands for bug reports. Share the exact curl command that reproduces an issue, including headers, body, and authentication - making it easy for developers to debug without needing a browser or UI.
CI/CD Pipeline Testing
DevOps engineers can generate curl commands for CI/CD pipeline scripts that test API endpoints during deployment. The cURL command generator helps create commands with the right flags for status code checking, response header inspection, and failure handling in shell scripts.
API Documentation Examples
Technical writers creating API documentation can use the cURL command generator to produce accurate, copy-paste-ready curl examples for their docs. Generate commands with proper escaping and formatting, then include them in API reference docs, tutorials, and integration guides.
Learning HTTP & REST APIs
Students and developers new to HTTP APIs can use the cURL command generator to learn how different HTTP methods, headers, and authentication schemes translate to actual curl commands. Experiment with GET, POST, PUT, DELETE and see the corresponding curl command instantly.
Cross-Team Collaboration
Team members can share generated curl commands instead of describing API calls verbally. The cURL command generator produces standardized, shareable commands that anyone on the team can run in their terminal, reducing miscommunication about API endpoints, parameters, and authentication.
Understanding the cURL Command Generator
What is cURL and Why Use a Generator?
cURL (Client URL) is a command-line tool for transferring data using various network protocols, most commonly HTTP/HTTPS. It is widely used for testing APIs, debugging web services, and automating HTTP requests in scripts. However, constructing complex curl commands with multiple headers, authentication schemes, and request bodies requires remembering many flags and correct shell escaping. A cURL command generator eliminates this friction by providing a visual form that produces properly formatted, shell-safe curl commands instantly - no flag memorization required.
How Our cURL Command Generator Works
- Configure the Request: Select the HTTP method (GET, POST, PUT, PATCH, DELETE, HEAD, or OPTIONS), enter the target URL, add custom headers with key-value pairs, and optionally set a request body in JSON, form-encoded, or raw format.
- Set Authentication: Choose from No Authentication, Basic Auth (username + password), Bearer Token (for JWT and API tokens), or Digest Auth. The generator automatically formats the credentials into the correct curl flags.
- Copy & Use the Command: The generated command updates in real-time as you configure. Toggle between multi-line format (with
\line continuations for readability) and single-line format (for quick terminal paste). Click Copy to copy the command to your clipboard.
cURL Command Components Explained
- -X / --request: Specifies the HTTP method. While curl defaults to GET for most URLs, explicitly setting the method with -X ensures clarity and correctness, especially for POST, PUT, PATCH, and DELETE requests.
- -H / --header: Adds custom HTTP headers to the request. Common headers include
Content-Typefor specifying the body format,Acceptfor requesting specific response formats, andAuthorizationfor bearer tokens. - --data / --data-raw / --data-urlencode: Sends data in the request body.
--data-rawsends the data as-is.--data-urlencodeURL-encodes the value, which is necessary for form submissions. - -u / --user: Provides credentials for Basic or Digest authentication in the format
username:password. For Bearer token authentication, use-H "Authorization: Bearer TOKEN"instead.
Privacy, Security & Availability
Our cURL command generator processes everything entirely in your browser. The URLs, headers, authentication tokens, and request bodies you enter never leave your device - no data is uploaded, stored, or logged on any server. This complete privacy ensures you can safely generate curl commands for any API, including internal services and production systems with sensitive credentials. The tool is 100% free with no signup, no usage limits, and no tracking. Use it as many times as you need, for as many API configurations as you need, completely free forever. No installation or downloads are required - just open your browser and start generating curl commands.
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Frequently Asked Questions About cURL Command Generator
A cURL command generator is a tool that helps you build curl commands through a visual form interface instead of memorizing all the flags and syntax. You select the HTTP method, enter a URL, add headers, set a request body, configure authentication, and the tool generates the properly formatted curl command that you can copy and paste directly into your terminal.
Our cURL command generator supports all standard HTTP methods: GET, POST, PUT, PATCH, DELETE, HEAD, and OPTIONS. Each method is automatically included in the generated command using the -X flag, and GET is omitted by default since it is curl's default method.
Click the "+ Add Header" button under the Headers section. Enter the header name (e.g., "Content-Type") and the header value (e.g., "application/json"). You can add multiple headers, and each one is converted to a -H flag in the generated curl command. Remove any header by clicking the ✕ button next to it.
The cURL command generator supports four authentication modes: No Authentication for public endpoints, Basic Auth using the -u flag with username:password, Bearer Token using the Authorization header (ideal for JWT and API tokens), and Digest Auth using the --digest flag with username:password credentials.
Multi-line format uses backslash line continuations (\) to break the command across multiple lines for better readability, making it easier to review and edit. Single-line format puts everything on one line without backslashes, which is ideal for quickly pasting into a terminal. You can toggle between both formats using the buttons above the generated command.
No. Our cURL command generator processes everything entirely in your browser. The URLs, headers, authentication tokens, and request bodies you enter never leave your device. We do not store, log, or transmit your API data to any server.
Yes, the generated curl commands are fully functional and can be used for any API call, including production endpoints. The commands include proper shell escaping for all values. However, always verify the generated command before running it, especially when working with production systems, and be aware that any credentials you include will be visible in your terminal history.