Webhook Sender - Send HTTP Requests Online Free
Send webhooks and HTTP requests to any URL instantly. Test your webhook endpoints with custom body, headers, and HTTP methods.
Send Webhooks and HTTP Requests Instantly — No Setup Required
Whether you're testing a webhook endpoint, triggering a workflow, or debugging an API integration, our Webhook Sender lets you fire HTTP requests directly from your browser. Just paste the URL, add your payload, and hit Send. No account, no installation, no waiting.
Webhooks are the backbone of modern integrations — used by platforms like Stripe, GitHub, Slack, and Shopify to notify your server when something happens. Instead of waiting for real events, you can use this tool to simulate any webhook payload and verify your endpoint handles it correctly.
Need more control? Expand Advanced Options to choose the HTTP method, add custom headers likeAuthorization orX-API-Key, and fine-tune your request — all without leaving the page. If you need to inspect incoming webhooks rather than send them, pair this tool with a service like webhook.site to capture and debug requests end-to-end.
Working with JSON payloads? Use our JSON to Table tool to visualize response data, or API Tester for more advanced request options including authentication and query parameters.
How to Send a Webhook
Paste the webhook endpoint or API URL you want to send the request to.
Paste JSON, XML, or any text payload into the body field.
Change the HTTP method (default: POST) or add custom headers such as Authorization tokens.
See the HTTP status code, response time, and full response body immediately.
Frequently Asked Questions
What is a webhook sender?
A webhook sender is a tool that lets you manually send an HTTP request (usually POST) to a URL with a custom payload. It's useful for triggering workflows, testing integrations, and debugging webhook endpoints.
What HTTP methods are supported?
POST, GET, PUT, PATCH, and DELETE are all supported via Advanced Options. POST is selected by default since most webhooks expect a POST request.
Can I send custom headers?
Yes. Open Advanced Options and add any headers you need — Authorization tokens, API keys, Content-Type overrides, and more.
Why am I getting a CORS error?
Our tool routes requests through a server-side proxy, so browser CORS restrictions do not apply. If you see a network error, the target server may be down, blocking our server's IP, or the URL may be incorrect.
What payload formats are supported?
Any format — JSON, XML, plain text, form data as a string, or any custom payload your endpoint expects. The tool auto-detects the format and sets the Content-Type header accordingly. You can always override it manually in Advanced Options.
How do I send an authenticated webhook?
Open Advanced Options and add an Authorization header with your token value, for example Bearer your-token-here. You can add any number of custom headers your endpoint requires.
Is there a request size or rate limit?
To ensure fair usage for all users, requests are rate limited per IP address. For most testing and development workflows this limit will never be reached. Each request times out after 30 seconds if the target server does not respond.