SlingshotWebhook testing platform

Quick Start

Get started with Slingshot • Capture, inspect, diff, and replay webhooks safely

What is Slingshot?
Slingshot is a webhook testing and debugging platform that helps you capture, inspect, and test webhooks from any service.

How it works

  1. Create a webhook project (each project gets a unique endpoint)
  2. Configure your service to send webhooks to your project URL
  3. View incoming webhooks in real-time with full request details
  4. Inspect headers, body, and metadata
  5. Resend webhooks to test your endpoints

Features

  • Live webhook stream powered by SSE with smart caching
  • Headers, body, response, and raw payload inspection
  • Color-coded inline and side-by-side diffs between events
  • One-click exports to HTTPie, cURL, or Burp
  • Client-side replay to any target (SSRF-safe)
  • Supports every HTTP method (GET, POST, PUT, DELETE, etc.)

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