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Polar Webhook Tester

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

Get a free webhook URL in one click, paste it into your Polar dashboard, and watch events stream in live. Verify webhook-signature signatures automatically, replay any request to your local server, and debug payloads with search and filters.

Get a free Polar webhook URLFull Polar setup guide

Why test Polar webhooks with HookSense

Real-time WebSocket stream

Events appear the instant Polar sends them. No polling, no refresh button.

HMAC-SHA256 (Standard Webhooks spec) verification

Paste your signing secret once — HookSense verifies every Polar request automatically.

One-click replay

Send any captured webhook back to your local server or production — rerun your handler without triggering new events.

CLI forwarding, no ngrok

Forward directly to localhost:3000 with npx hooksense listen.

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 Polar

    In the Polar dashboard, add the URL as your webhook endpoint and pick the events you want (checkout.created, checkout.updated, etc.).

  3. 3
    Trigger an event and watch it arrive

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

Forward to localhost

npx hooksense listen -p 3000 --path /api/integrations/polar

Common Polar webhook events

checkout.created
checkout.updated
order.created
order.paid
subscription.created
subscription.updated
subscription.active
subscription.canceled

Testing tips specific to Polar

  • Polar uses the Standard Webhooks spec (webhook-id / webhook-timestamp / webhook-signature) — the same scheme as Svix
  • The signature base is webhook-id.webhook-timestamp.rawBody — verify against the raw body
  • Polar can format payloads for Discord or Slack too — point those at separate HookSense endpoints to compare
  • Replay captured order.paid events to retest fulfillment without a real purchase

Test webhooks from other providers

Start testing Polar webhooks now

Free plan includes 100 requests/day, 7-day retention, real-time streaming. No credit card.

Create a free endpoint