Test SendGrid webhooks in real-time — no signup, no tunnels.

Why test SendGrid webhooks with HookSense

Quick start — 3 steps

1. 1
   Get your free webhook URL

   Create a free endpoint at hooksense.com. You get a unique URL instantly — no credit card, no config.

2. 2
   Paste it into SendGrid

   In the SendGrid dashboard, add the URL as your webhook endpoint and pick the events you want (delivered, open, etc.).

3. 3
   Trigger an event and watch it arrive

   Fire a test event from SendGrid — it lands in HookSense within milliseconds. Inspect headers, body, and signature. Replay when ready.

Common SendGrid webhook events

Testing tips specific to SendGrid

• SendGrid batches events — a single webhook may contain multiple events in an array
• Use HookSense to inspect the batch structure before writing your parser
• SendGrid events arrive with a delay — HookSense shows the exact timing
• Test bounce handling by sending to a known invalid address

Frequently asked

Why do SendGrid webhooks arrive as an array?

SendGrid batches multiple events into a single POST. HookSense shows the full batch structure so you can see exactly how many events are grouped and how to iterate them in your handler.

How do I test SendGrid event webhooks locally?

Configure a HookSense URL as the Event Webhook in SendGrid Mail Settings, then forward captured events to localhost with `npx hooksense listen -p 3000`. Send a test email to trigger delivered, open, and click events.

Can HookSense verify SendGrid's ECDSA signature?

Yes. SendGrid signs with ECDSA using a verification key. HookSense validates the X-Twilio-Email-Event-Webhook-Signature header once you paste the public key from SendGrid settings.

Test webhooks from other providers