cURL Command Builder | API Request Generator
Build cURL commands with HTTP method, request URL, headers, query parameters, bearer token, and JSON body for API testing.
What the cURL Command Builder Creates
The cURL command builder turns API request details into a terminal-ready command with method, URL, headers, query parameters, bearer token, and request body.
API Details to Review
Check the method, endpoint, authorization header, content type, JSON body, query parameters, and shell quoting before running the command in a terminal.
Keep Secrets Out of Shared Commands
Remove API keys, bearer tokens, cookies, and private IDs before sharing a cURL command in tickets, documentation, chat, or public examples.
Common Questions
Does it support file upload requests?
Yes. You can add a multipart form body with a file field and the tool will generate the appropriate -F flag syntax for the upload.
Can I add multiple headers?
Yes. Add as many header rows as needed. Each header is added with a separate -H flag in the output.
How do I add Basic Authentication to the command?
Enter the username and password in the authentication section and the tool generates the -u flag or an Authorization header with the Base64-encoded credentials.
About This Tool
cURL Command Builder generates ready-to-run cURL commands from a form where you fill in the URL, method, headers, and request body. It eliminates the need to remember cURL syntax flags and reduces errors when constructing API test requests.
Good Times to Use It
Use this when testing an API endpoint and you want to produce the exact cURL command for that request, when writing documentation that includes example requests, or when sharing a reproducible HTTP call with a colleague.
Step by Step
- Enter the request URL.
- Select the HTTP method: GET, POST, PUT, PATCH, or DELETE.
- Add any required headers such as Authorization or Content-Type.
- Enter the request body if needed.
- Copy the generated cURL command and run it in your terminal.
Related Tools
Related Guide
How to Format JSON and Fix Common JSON ErrorsUnderstand JSON formatting, validation errors, missing commas, broken quotes, trailing commas and cleanup before using JSON in APIs or configuration files.