# HookCap

> Webhook testing tool. Capture, inspect, replay, and debug webhooks in real-time.

## Docs

- [Getting Started](https://hookcap.dev/docs/getting-started): Set up your first webhook endpoint with HookCap in under 3 minutes.

## Blog

- [How to Test Discord Webhooks with HookCap](https://hookcap.dev/blog/how-to-test-discord-webhooks-with-hookcap): Learn how to capture and debug Discord webhook events from bots and servers using HookCap. Covers incoming webhooks, bot event subscriptions, and interaction endpoints.
- [How to Test Twilio Webhooks with HookCap](https://hookcap.dev/blog/how-to-test-twilio-webhooks-with-hookcap): Learn how to capture, inspect, and debug Twilio webhook events for SMS, voice, and status callbacks using HookCap. Includes HMAC signature verification for Twilio.
- [How to Secure Webhooks: HMAC Verification and Best Practices](https://hookcap.dev/blog/how-to-secure-webhooks-hmac-verification): Learn how to verify webhook signatures using HMAC-SHA256, prevent replay attacks, and implement secure webhook handlers in Node.js, Python, and Go.
- [Webhook vs Polling vs WebSocket: When to Use Each](https://hookcap.dev/blog/webhook-vs-polling-vs-websocket): Understand the real differences between webhooks, polling, and WebSockets. Learn which pattern fits your use case, with performance trade-offs and practical examples.
- [Webhook Best Practices: Retry Logic, Idempotency, and Error Handling](https://hookcap.dev/blog/webhook-best-practices-retry-idempotency-error-handling): Learn how to build reliable webhook handlers with proper retry logic, idempotency keys, error handling, and queue-based processing. Practical patterns for production systems.
- [HookCap vs webhook.site: Which Is Better in 2026?](https://hookcap.dev/blog/hookcap-vs-webhook-site): A detailed head-to-head comparison of HookCap and webhook.site. Covers replay, persistence, real-time streaming, pricing, and when to use each tool.
- [How to Replay Webhooks for Faster Debugging](https://hookcap.dev/blog/how-to-replay-webhooks-for-faster-debugging): Learn how to replay captured webhooks to debug handlers without re-triggering events. How webhook replay works and why it speeds up your development cycle.
- [How to Test Slack Webhooks with HookCap](https://hookcap.dev/blog/how-to-test-slack-webhooks-with-hookcap): How to capture and debug Slack webhook events with HookCap. Covers Event Subscriptions, Interactivity payloads, URL verification, and localhost forwarding.
- [How to Test GitHub Webhooks with HookCap](https://hookcap.dev/blog/how-to-test-github-webhooks-with-hookcap): How to capture, inspect, and replay GitHub webhook events with HookCap. Covers push events, pull requests, releases, and HMAC signature validation.
- [How to Test Stripe Webhooks with HookCap](https://hookcap.dev/blog/how-to-test-stripe-webhooks-with-hookcap): How to capture, inspect, and replay Stripe webhook events with HookCap. Covers setup, signature verification, common event types, and debugging workflows.
- [How to Test Webhooks Locally: The Complete Guide](https://hookcap.dev/blog/how-to-test-webhooks-locally): Compare ngrok tunnels, mock servers, and HookCap auto-forward for testing webhooks locally. Setup instructions, trade-offs, and debugging workflows included.
- [How to Test Shopify Webhooks with HookCap](https://hookcap.dev/blog/how-to-test-shopify-webhooks-with-hookcap): How to capture, inspect, and replay Shopify webhook events with HookCap. Covers setup, HMAC signature verification, common event types, and debugging workflows.
- [Introducing HookCap: A Better Way to Test Webhooks](https://hookcap.dev/blog/introducing-hookcap): We built HookCap because webhook testing shouldn't need disposable URLs or polling. Permanent endpoints, real-time streaming, and one-click replay.
- [Why Real-Time Matters for Webhook Testing](https://hookcap.dev/blog/why-real-time-matters-for-webhook-testing): Polling-based webhook testers slow you down with 2-5 second delays. Here's why real-time WebSocket streaming changes the webhook debugging workflow.
- [How to Test Stripe Webhooks Locally: 2 Methods](https://hookcap.dev/blog/how-to-test-stripe-webhooks-locally): Step-by-step guide to testing Stripe webhooks in local development. Covers Stripe CLI forwarding and cloud-based endpoint testing with real payload examples.
- [Webhook Testing Tools Compared (2026): 5 Options Reviewed](https://hookcap.dev/blog/webhook-testing-tools-compared-2026): Honest comparison of the top webhook testing tools in 2026. Pricing, features, pros and cons for webhook.site, HookCap, Beeceptor, RequestBin, and ngrok.
- [Webhooks Explained: What They Are and How to Debug Them](https://hookcap.dev/blog/what-is-a-webhook-and-how-to-debug-it): Learn what webhooks are, how they work, and how to debug them when things go wrong. Practical guide with examples, common failure modes, and debugging tools.