HookLab

When a webhook silently fails, the provider dashboard says delivered and your integration just does not move. HookLab gives you a live endpoint, a full payload inspector, and a one-click replay so you can reproduce the exact request against localhost or staging until the bug shows itself.

What HookLab actually does

The workflow is straightforward: capture every incoming request against a personal endpoint, inspect the raw payload, then replay it wherever your debugger is running.

• Generate a unique webhook endpoint instantly and see every request as it arrives

• Inspect HTTP method, headers, query parameters, and the raw request body without extra setup

• Replay any captured request to localhost, staging, or production with the identical payload

• Verify Stripe and GitHub webhook signatures inline

• Create unlimited endpoints per project so dev, QA, and staging do not share pipes

• Simulate custom HTTP status codes and delayed responses to test retry logic

• Read raw payloads as pretty-printed JSON without losing the original bytes

• Have Authorization headers, cookies, and API keys stripped before storage

The features that matter

Two features do most of the work. Replay to localhost is what turns webhook debugging from please retrigger it on your side into a normal edit-compile-run loop; you keep the same request body, resend it as often as you need, and stop begging Stripe's dashboard for a repeat. Signature verification for Stripe and GitHub matters because that is the exact class of bug, an invalid HMAC, that never surfaces in the provider's UI and eats an afternoon otherwise. Combined with the unlimited-endpoints rule, one HookLab account can cover an agency's worth of separate integrations without a per-endpoint tax.

How it fits in your stack

The listing frames HookLab against Shopify, which is not really a peer. Shopify is where webhooks originate; HookLab is what you point them at during development. The clearer comparison is against ngrok plus a homegrown inspector, or against paid tiers of Webhook.site. HookLab collapses that into one paid inspector with unlimited endpoints and unlimited captured requests, which is the part that actually matters when you are mid-incident.

Who it's built for

Backend engineers and integration teams shipping code that lives or dies on other services' webhooks: Stripe, Shopify, GitHub, Slack, Twilio, Zoom. Freelancers who charge by the integration will save the most, since the tool takes the wait, can you re-send that? step out of every debugging session.

The single plan is sized for a working developer rather than a team seat, and the feature set is not partitioned into upsells — everything the tool does today plus whatever the team ships next is included in the same purchase.