Webhook Request Builder

🤖 Agent Ready

Build and send HTTP requests with custom headers and body. Test webhooks and APIs from your browser.

application/json
Show cURL equivalent
curl -X POST 'https://httpbin.org/post' \
  -H 'Content-Type: application/json' \
  -d '{
  "event": "user.signup",
  "userId": "usr_123",
  "email": "alice@example.com",
  "timestamp": "2024-01-01T00:00:00Z"
}'

Webhook Tester FAQ

Can I test webhooks without Postman? Yes — this free webhook tester lets you send HTTP requests directly from your browser.

Does devpick.sh store my payloads? Nope. Request building happens client-side, and we do not store your request body or headers.

Can I generate cURL from a request? Yep. Open “Show cURL equivalent” to copy a terminal-ready command.

What should I check when a webhook returns 401, 403, or 422? Verify your auth header, payload shape, and endpoint path. Use JWT Decoder to inspect bearer tokens and JSON Formatter to validate request bodies.

How do I troubleshoot redirects or server errors fast? Pair this builder with HTTP Status Codes for quick 3xx/4xx/5xx diagnosis and retry with adjusted headers or payload.

Related Tools

JSON FormatterJWT DecoderJSONPath TesterHTTP Status Codes

Frequently Asked Questions

Can I test webhook endpoints without Postman?

Yes. This webhook tester runs in your browser, so you can send GET, POST, PUT, PATCH, DELETE, HEAD, and OPTIONS requests without installing anything. Note: the target server must allow cross-origin (CORS) requests, or the browser will block the call.

Does devpick.sh store my request payloads?

No. Requests are built client-side in your browser. devpick.sh does not store your payloads or headers.

Can I include custom headers like Authorization?

Yes. You can add, toggle, and remove any HTTP headers including Authorization, Content-Type, and custom X- headers.

Can I generate cURL commands from my request?

Yes. The tool includes a cURL equivalent preview so you can copy your request into terminal workflows quickly.