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.

Webhook-Tester

Eindeutige URL erzeugen und HTTP-Anfragen in Echtzeit ansehen

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.

Häufig gestellte Fragen

Ein Webhook-Tester erzeugt eine eindeutige URL, die jede eingehende HTTP-Anfrage protokolliert. Du kannst Methode, Header, Query-Parameter, Body und IP-Adresse in Echtzeit einsehen. Das ist ideal zum Debuggen von Webhook-Integrationen mit Stripe, GitHub, Slack und anderen APIs.

Klicke auf 'New Endpoint', um eine eindeutige URL zu erzeugen. Kopiere diese URL und trage sie im zu testenden Service als Webhook-Ziel ein. Jede Anfrage an diese URL erscheint in Echtzeit im Posteingang; per Klick siehst du alle Details.

Webhook-Daten werden nur temporär gespeichert und sind ausschließlich über die eindeutige Endpoint-URL zugänglich. Öffentliche Endpoints laufen nach 48 Stunden ab und sind auf 200 Requests begrenzt. Für persistente Endpoints mit höheren Limits kannst du dich mit einem kostenlosen Account anmelden.

Ja. Eingeloggte Nutzer können den HTTP-Statuscode, den Response-Body und den Content-Type konfigurieren, der an den Caller zurückgegeben wird. Das ist hilfreich, um zu testen, wie deine Anwendung auf unterschiedliche Webhook-Antworten reagiert.

Alle gängigen HTTP-Methoden werden unterstützt: GET, POST, PUT, PATCH, DELETE, HEAD und OPTIONS. Der Tester erfasst die vollständige Anfrage unabhängig von der Methode.

Dieser Webhook-Tester ist in das Developer-Toolkit von JSONTech integriert und funktioniert nahtlos mit JSON Formatter, Validator und API Explorer zusammen. Öffentlicher Zugriff ist kostenlos ohne Signup, und eingeloggte Nutzer erhalten persistente Endpoints sowie eine konfigurierbare Response.