Catch what failed.
When retries run out, the story should not end. Keep the failed delivery, its response, and the context you need.
504 timeout → saved to inboxStop ssh-ing into production for failed JSON. Hookjail keeps every delivery your app missed, shows a safe preview, and replays the exact request once your fix is live.
Free plan: 1 endpoint, 1,000 deliveries a month. No card, no password.
Stripe · received 2 minutes ago
{ "id": "evt_1NxK2qLk8f21c4", "type": "invoice.payment_failed", "data": { "customer_email": "••••••••", "amount": "••••••••", "currency": "usd" }}Response
504 timeoutAttempts
5 of 5Payload
RedactedReplay succeeded · 200 OK
One inbox. The providers you already use.
FROM FAILED TO FIXED
No SSH sessions to find a missing JSON body. No improvised curl commands at 3am. Just three deliberate steps.
When retries run out, the story should not end. Keep the failed delivery, its response, and the context you need.
504 timeout → saved to inboxInspect a redacted payload alongside stored headers and every attempt. Understand the failure without exposing customer data. Reveal the original only with a written reason.
"customer_email": "••••••••"Fixed the handler? Dry-run it, then replay the exact bytes with a fresh Hookjail signature. You are warned before repeating an event that already went through.
replay → 200 OK → back to buildingA LITTLE LESS TO WORRY ABOUT
Recovery should feel controlled. Every screen makes it clear what you can see, what will happen, and what gets recorded.
Explore the security approachNames, e-mails, amounts and card numbers are masked. Search covers metadata only, never payloads.
A written reason and an audit entry come before the original is shown, and the view closes itself.
Dry run first. Every replay is signed, and you are warned before repeating a delivered event.
You choose how long originals are kept. After that the record stays and replay stops.
PLANS
The Free plan is open now. Replay, alerts and longer retention come with the paid plans, and pricing is not announced yet. Leave your email and we write once, when they open.
Capture and inspect, with nothing to pay.
For one product with real traffic.
For several services and people.
THE DETAILS
A few things you might want to know before handing over your webhooks.
Read the quickstartCreate an endpoint, paste its Hookjail URL into your provider, and point it at your existing webhook handler. Hookjail stores each delivery, forwards it, and returns your handler’s real answer, so the provider’s own retries keep working. Failures land in your inbox.
It can if your application does not enforce idempotency. The replay flow shows the destination, previous replays, and original event key before you confirm. Your handler must use that key to prevent duplicate effects.
The Free plan is open now and costs nothing. Replay, alerts and longer retention will be paid features. Pricing is not announced yet; people on the email list for paid plans hear about it first.
Signed-in members of your workspace, and only through Reveal payload: it needs a written reason, is recorded in the audit log before the data is shown, and closes after five minutes. Payloads are encrypted with a per-workspace key. Today the master keys live in Cloudflare Worker secrets; the security page lists exactly what we do and do not claim.
No password, no card. We email you a one-time link and your workspace is ready.