Free webhook tools
Small utilities we built for ourselves while debugging webhooks. No signup, no limits, and everything runs in your browser.
X-Hub-Signature-256 verifier and generator
Check whether a Meta webhook signature matches your app secret and raw body, or generate the header for testing. Runs in your browser — nothing is uploaded.
Meta webhook payload inspector
Paste a Lead Ads or WhatsApp webhook body and see how many events it really contains and which ID each one routes on. Runs in your browser — nothing is uploaded.
Each tool runs entirely in your browser. Secrets and payloads are never uploaded, stored or logged.