How do I test GitHub webhooks without deploying anything?

Create a free endpoint on webhooks.cc — sign in with GitHub or Google, or use a guest endpoint without an account — then configure it as your webhook URL: Repository → Settings → Webhooks → Add webhook. Every delivery shows up live in the dashboard with full headers, body, and query parameters. To hit a local server, run whk tunnel and the CLI forwards each webhook to localhost.

Can I send a sample GitHub webhook without a GitHub account?

Yes. webhooks.cc ships GitHub templates (push, pull_request.opened, ping) with realistic payloads and correctly computed signature headers. Send them from the dashboard, the SDK, or the MCP server to exercise your handler end-to-end.

How do I verify GitHub webhook signatures?

GitHub signs each delivery with the x-hub-signature-256 header using HMAC-SHA256. webhooks.cc verifies these signatures for you: add your signing secret to the endpoint and every captured request is marked valid or invalid in the dashboard.

Is the GitHub webhook tester free?

Yes. A free account gets you persistent endpoints, 50 requests per day, 7-day retention, and full CLI, SDK, and MCP access — no credit card. You can also try a guest endpoint without an account: up to 25 requests for 12 hours.

Test GitHub webhooks

GitHub sends webhooks for pushes, pull requests, releases, issues, and workflow runs on repositories and organizations. Capture them on a free webhooks.cc endpoint to see exactly what GitHub sends — or fire realistic, correctly signed sample payloads at your own handler without touching a production account.

Start free:

No credit card · 50 requests/day free · or get a guest URL without an account

Prefer a walkthrough? Read the Test GitHub webhooks locally.

How to test GitHub webhooks

1
Create a webhook endpoint
Sign in free with GitHub or Google to create a persistent endpoint — or grab an instant guest URL at webhooks.cc/go without an account.
2
Point GitHub at your URL
Paste the endpoint URL into GitHub: Repository → Settings → Webhooks → Add webhook.
3
Inspect what arrives
Each delivery appears live in the dashboard with method, headers, body, query parameters, and source IP.
4
Forward to localhost or assert in CI
Run whk tunnel <port> to forward webhooks to a local server, or use the TypeScript SDK to wait for and assert on deliveries in tests.

GitHub webhook signature

Signature header	x-hub-signature-256
Algorithm	HMAC-SHA256
Verification in webhooks.cc	Supported — add your signing secret and every request is checked automatically

New to signature verification? Read the webhook signature verification guide.

Send sample GitHub events

These GitHub templates ship with realistic payloads and valid signature headers. Send them from the dashboard's Send button, the SDK, or your AI agent via MCP.

pushpull_request.openedping

# Send a signed GitHub sample with the SDK
await client.endpoints.sendTemplate( slug, {
  provider: "github",
  template: "push",
  secret: "your-test-secret",
});

Everything in one place

Live dashboard — see deliveries the moment they arrive
Forward to localhost with whk tunnel
Replay any captured request to any URL
Mock responses with custom status, headers, and body
TypeScript SDK assertions for CI
MCP server for AI coding agents

GitHub webhook questions

Your GitHub webhook URL is seconds away

No credit card · or try without an account

Test GitHub webhooks

How to test GitHub webhooks

Create a webhook endpoint

Point GitHub at your URL

Inspect what arrives

Forward to localhost or assert in CI

GitHub webhook signature

Send sample GitHub events

Everything in one place

GitHub webhook questions

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