What is a webhook tester?

A webhook tester generates a unique URL that captures every HTTP request sent to it. You can then inspect the method, headers, query parameters, body, and IP address of each request in real time. It's essential for debugging webhook integrations with services like Stripe, GitHub, Slack, and other APIs.

How do I use the webhook tester?

Click 'New Endpoint' to generate a unique URL. Copy that URL and use it as the webhook destination in the service you're testing. Every request sent to that URL will appear in the inbox in real time, where you can click to see full details. You can also open the same unique URL in your browser later to view that endpoint's captured requests on a shareable read-only page.

Is my webhook data secure?

Webhook data is stored temporarily and is only accessible via the unique endpoint URL. Public endpoints expire after 48 hours and are limited to 200 requests. For persistent endpoints with higher limits, sign in with a free account.

Can I customize the webhook response?

Yes, signed-in users can configure the HTTP status code, response body, and content type returned to the caller. This is useful for testing how your application handles different webhook responses.

What HTTP methods are supported?

All standard HTTP methods are supported: GET, POST, PUT, PATCH, DELETE, HEAD, and OPTIONS. The tester captures the full request regardless of method.

How is this different from webhook.site?

This webhook tester is integrated into JSONTech's developer toolkit. It works alongside our JSON formatter, validator, and API explorer. Public access is free with no signup required, and signed-in users get persistent endpoints and custom response configuration.

Probador de webhooks

Genera una URL única e inspecciona peticiones HTTP en tiempo real

Loading Webhook Tester

Fetching the latest endpoint and request data.

How it works:Click “New Endpoint” to generate a unique URL. Send any HTTP request (GET, POST, PUT, DELETE, etc.) to that URL and it will appear here in real time. You can also open the unique webhook URL in your browser later to inspect the same inbox directly. Sign in to get persistent endpoints, higher request limits, and custom response configuration.

Capture real webhook payloads in real time

When you're integrating Stripe, GitHub, Slack, or any webhook-driven service, you need to see what the upstream actually sends. A webhook tester gives you a unique URL, captures every request, and shows you the headers, body, and method live — so you can debug signature checks, retry logic, and payload shapes against real traffic.

Use the tester when you need to

Debug a Stripe, GitHub, or Slack webhook

Point the upstream at the unique URL and inspect every request as it arrives, with full headers and body.

Capture sample payloads for tests

Trigger the upstream once, save the captured payload, and use it as a fixture for unit and integration tests.

Verify retry and signature behavior

Watch what happens when you respond with non-2xx status codes or verify that signed requests carry the expected headers.

How to test a webhook quickly

1
Click New Endpoint to generate a unique URL.
2
Paste the URL into the upstream service's webhook configuration.
3
Trigger the upstream and inspect every captured request in real time.

Keep going

Replay captured requests

Take a captured payload and resend it to your own server while iterating on the handler.

Format captured bodies

Beautify the captured JSON to make signature debugging easier.

Explore captured payloads

Browse complex webhook bodies in tree view instead of scrolling through raw text.

Validate the body

Confirm the upstream is sending well-formed JSON before debugging your parsing logic.

Common webhook workflows

Bring up a new integration

Use a public endpoint to see exactly what the upstream sends before writing handler code.

Reproduce a failing webhook

Replay a captured payload against your local server until the bug is fixed.

Verify signature headers

Check that the upstream is sending the expected signature header before debugging signature verification.

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Preguntas frecuentes

Un webhook tester genera una URL única que captura cada solicitud HTTP que reciba. Luego puedes inspeccionar método, headers, parámetros de query, body y la IP de cada request en tiempo real. Es clave para depurar integraciones de webhooks con servicios como Stripe, GitHub, Slack y otras APIs.

Haz clic en 'New Endpoint' para generar una URL única. Copia esa URL y configúrala como destino del webhook en el servicio que estás probando. Cada solicitud enviada aparecerá en la bandeja en tiempo real; haz clic en una entrada para ver todos los detalles.

Los datos del webhook se almacenan temporalmente y solo son accesibles mediante la URL única del endpoint. Los endpoints públicos caducan a las 48 horas y están limitados a 200 solicitudes. Para endpoints persistentes con límites más altos, inicia sesión con una cuenta gratuita.

Sí. Los usuarios con sesión iniciada pueden configurar el código de estado HTTP, el body de respuesta y el content type que se devuelve al emisor. Esto sirve para probar cómo tu aplicación maneja distintas respuestas del webhook.

Se soportan todos los métodos HTTP estándar: GET, POST, PUT, PATCH, DELETE, HEAD y OPTIONS. El tester captura la solicitud completa independientemente del método.

Este webhook tester está integrado en el toolkit de desarrolladores de JSONTech. Funciona junto a nuestro formateador y validador de JSON, y el API explorer. El acceso público es gratis sin registro, y los usuarios con sesión obtienen endpoints persistentes y configuración de respuesta personalizada.