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.

Testador de webhook

Gere uma URL única e inspecione requisições HTTP em tempo 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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Perguntas frequentes

Um webhook tester gera uma URL única que captura toda requisição HTTP enviada para ela. Você consegue inspecionar método, headers, query params, body e IP em tempo real. É essencial para depurar integrações de webhook com serviços como Stripe, GitHub, Slack e outras APIs.

Clique em 'New Endpoint' para gerar uma URL única. Copie essa URL e configure como destino do webhook no serviço que você está testando. Cada requisição enviada para essa URL aparece na caixa de entrada em tempo real; clique em uma delas para ver os detalhes completos.

Os dados do webhook ficam armazenados temporariamente e só podem ser acessados pela URL única do endpoint. Endpoints públicos expiram após 48 horas e têm limite de 200 requisições. Para endpoints persistentes com limites maiores, faça login com uma conta gratuita.

Sim. Usuários logados podem configurar o status code HTTP, o corpo da resposta e o content type retornado para quem chamou. Isso ajuda a testar como sua aplicação reage a diferentes respostas de webhook.

Todos os métodos HTTP padrão: GET, POST, PUT, PATCH, DELETE, HEAD e OPTIONS. O tester captura a requisição completa independentemente do método.

Este webhook tester é integrado ao kit de ferramentas de dev do JSONTech. Ele funciona junto com nosso formatador/validador de JSON e o API explorer. O acesso público é gratuito e não exige cadastro; usuários logados ganham endpoints persistentes e configuração de resposta customizada.