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Guides, tutorials, and deep dives on capturing, debugging, and AI-diagnosing webhooks from any provider.
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Core how-tos
Get real provider webhooks hitting your localhost in under a minute — and replay them as many times as you need, without making real events.
How HMAC webhook signatures work, the raw-body trap that breaks verification, constant-time comparison, replay protection, and copy-paste code for Stripe, GitHub, Shopify and Slack.
Stop fighting 400 Bad Request on webhook signature verification.
Learn practical techniques to test GitHub webhooks locally: ngrok, reverse proxies, and webhook inspectors. Build and debug webhook handlers safely.
Debug Shopify order webhooks on localhost without port forwarding. Step-by-step guide to capture, inspect, and replay webhook payloads during developm
Skip ngrok. Learn practical techniques to test webhooks locally: localhost tunneling alternatives, request inspection, signature verification, and rep
Provider tutorials
Receive real Stripe webhooks on localhost, verify the Stripe-Signature correctly, and replay events without making real charges.
Stop writing webhook boilerplate from docs. Anonymily reads a real captured payload and generates a complete, runnable Express, Next.js, or NestJS handler — with correct raw-body signature verification baked in.
The webhook events that break production are the rare ones: disputes, partial refunds, failed renewals, out-of-order retries. Anonymily's AI generates realistic, correctly-signed edge-case events on demand so you can test them before they happen.
AI-powered features
Comparisons
ngrok is a general-purpose tunnel that now does a lot. For the webhook job specifically — offline capture, signed synthetic events, replay-with-re-sign, and AI diagnosis — here's an honest, up-to-date comparison.
webhook.site is the fastest way to grab a throwaway URL and see what a provider sends. Anonymily is built for the full build-test-debug loop. An honest comparison of where each one fits.
Hookdeck is a production event gateway with a strong dev CLI and MCP tooling. Anonymily is a focused webhook dev tool with signed synthetic events and a native AI engine. They overlap, but they're built for different jobs.