Webhook Payload Generator (Stripe, GitHub, Slack)
Building a webhook receiver? Stop hunting for example payloads in vendor docs. This generator builds realistic test payloads for popular webhook providers, with optional HMAC signatures matching the real format. Use as fixture data for unit tests or to manually post to your local dev server.
How to use the Webhook Payload Generator (Stripe, GitHub, Slack)
Pick a provider + event. Set a signing secret. Click Generate. The output includes the payload body and the matching Stripe-Signature / X-Hub-Signature-256 / X-Slack-Signature header value, plus a ready-to-paste cURL command.
Realistic webhook payloads for testing
Building a webhook receiver means handling payloads shaped exactly the way a provider sends them, but those examples are scattered through vendor docs and often incomplete. You need the real field names and nesting — a Stripe payment_intent.succeeded, a GitHub push, a Slack interactive callback — not a hand-typed approximation that diverges from production.
This generates realistic payloads for Stripe, GitHub, Slack, and Discord events, each with the matching HMAC signature header and a ready-to-paste cURL command, so you can use them as test fixtures or post them at a local server. It focuses on producing provider-shaped payloads; to build a signed request against your own endpoint with a custom payload and header format, use the webhook tester.
Common use cases
- Test fixtures — seed unit tests with realistic provider payloads.
- Local development — post a sample event at your dev server.
- Signature handling — verify your receiver checks the HMAC header.
- Onboarding — show new code the exact shape an event arrives in.
- Reproducing bugs — recreate a problematic event payload on demand.