Frequently Asked Questions
Everything you need to know about testing and debugging webhooks online.
What is a Webhook Tester?
A webhook tester is an online tool that generates a unique public URL which you can use to capture, inspect, and debug incoming HTTP requests (like POST, GET, PUT) in real-time. It is essential for developers integrating third-party APIs like Stripe, Shopify, GitHub, or Discord. For a deep dive, read our complete webhook testing guide.
Is this webhook testing tool completely free?
Yes! Our free webhook tester is 100% free with no hidden fees, no signup required, and no limits on the number of webhooks you can create.
How long do you keep my webhook data?
To ensure your privacy and keep the platform fast, webhook data is kept temporarily. We recommend using the tool for active development and debugging sessions. Data is regularly cleared, so please do not use these endpoints for long-term storage.
Can I simulate different HTTP response codes?
Absolutely. Click on 'Edit Response Settings' in your dashboard. You can customize the HTTP status code (e.g., 200 OK, 400 Bad Request, 500 Internal Server Error), response body, headers, and even add delays to simulate slow networks. Learn more in our webhook simulator tool page.
Can I use this to test Discord or Slack webhooks?
Yes! You can paste your unique webhook URL directly into Discord, Slack, or any other platform's developer dashboard to inspect exactly what payload they are sending when an event occurs. We have detailed guides for Discord webhook testing and Slack webhook testing.
Is my webhook data private?
Every webhook URL generated is a unique, randomly assigned UUID. Only people who have the exact URL can send requests to it or view the dashboard. However, because URLs can be shared, we recommend not sending sensitive production data (like real credit card numbers or passwords) to any public webhook tester. See our webhook security best practices guide for production tips.
Can I forward requests to my local server (localhost)?
While we don't currently offer a built-in CLI tool for local tunneling (like ngrok), you can use our tool to inspect the payloads online and then manually replicate those requests locally using tools like Postman or cURL. For a complete walkthrough, see our local webhook testing guide. You can also check our guide on using Requex.me as an ngrok alternative.
What is the difference between a Webhook and an API?
While both are ways for systems to communicate, an API typically requires you to poll for data (ask if there's new data). A webhook, on the other hand, is event-driven; it automatically pushes data to your URL the moment an event occurs. This makes webhooks much more efficient for real-time updates without the overhead of constant polling. Read our detailed Webhook vs API comparison for more.
How can I test n8n webhooks?
You can use our free webhook tester to inspect the payloads your n8n workflows send. Simply set up a webhook node in n8n, paste your unique Requex URL into it, and trigger your workflow. You'll instantly see the exact JSON structure, allowing you to debug and verify your n8n automations.
What are webhook security best practices?
When implementing webhooks in production, always use HTTPS to encrypt data in transit. Validate incoming requests using signature verification (like a webhook secret or HMAC signature) to ensure the request truly came from the expected provider. Our testing tool provides a secure HTTPS endpoint to help you prepare. Read our full webhook security best practices guide for detailed coverage.
How does Requex.me compare to webhook.site?
Requex.me offers several advantages over webhook.site, including real-time WebSocket updates (no page refresh needed), free custom response simulation, dark mode, and a modern developer-friendly UI. See our detailed webhook.site alternative comparison.
How do I troubleshoot webhook errors?
Common webhook errors include 400 Bad Request (malformed payloads), 401 Unauthorized (invalid signatures), 404 Not Found (wrong URL), and 500 Internal Server Error (handler crash). Use Requex.me to capture the raw request and identify the root cause. See our webhook error debugging guide for step-by-step troubleshooting.
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