Dev Utilities

API Request Builder

Build and send API requests in the browser with headers, auth, JSON bodies, and instant response inspection, then copy the same request as curl, fetch, or axios.

Compose a request once, run it in the browser, and export it as curl, fetch, or axios.

Execution
Auto tries the browser first and falls back to the secure timedev relay if CORS blocks the request.
Auth
Headers
Relay mode is locked down: only public HTTP(S) targets on default ports are allowed, and private or internal network targets are blocked.
curl "https://jsonplaceholder.typicode.com/posts/1" -H "Accept: application/json"

Send a request to inspect the response

You’ll see status, headers, response body, and ready-to-copy code snippets.

What is this tool?

API Request Builder helps developers build API requests, inspect responses, and generate curl, fetch, or axios code from the same request. It is especially useful for testing public APIs quickly, reproducing request headers and auth issues, turning a working request into copyable code snippets.

How to use it

Paste or enter your api request builder input.
Adjust the mode, options, or sample values for the exact workflow you need.
Review the output, copy the result, and move back into your app or request.

Example

Input
GET https://jsonplaceholder.typicode.com/posts/1
Output
200 OK with JSON response body plus generated curl, fetch, and axios snippets

The same request configuration can be executed in the browser and exported as code for app or shell workflows.

Related Tools

Frequently Asked Questions

API Request Builder helps developers build API requests, inspect responses, and generate curl, fetch, or axios code from the same request. It is built for common workflows like testing public APIs quickly and reproducing request headers and auth issues.

Use it when you need a fast answer while debugging, building payloads, or validating output. Typical workflows include testing public APIs quickly, reproducing request headers and auth issues, turning a working request into copyable code snippets.

Yes. The tool is designed for fast, lightweight workflows without sign-up or heavy UI. Most processing happens instantly in the browser.