Test WhatsApp Cloud API Webhooks Online | Free Sandbox Debugger
WhatsApp Business Cloud API webhooks deliver real-time HTTP notifications for incoming messages, delivery receipts, and read statuses from Meta. Testing these events in a secure sandbox lets developers validate their webhook handlers and X-Hub-Signature-256 verification without wiring up a live server. This debugger captures the raw WhatsApp JSON envelope so you can inspect the entry/changes/value structure, confirm your signature check, and orchestrate automated workflows off every inbound message.
How to test WhatsApp
This sandbox opens with a real example payload already loaded into a live workflow. Run it to watch the event move through every node, inspect the JSON at each step, and edit the mapping logic in place — no sign-up, no setup, no local tunnel. Create a free account when you are ready to point your own webhooks at a live endpoint and keep the workflows you build here.
- Start the sandbox to load a real WhatsApp example payload into a live workflow.
- Run the workflow and watch the event move through each node on the canvas.
- Edit the mapping, add a destination, and re-run to see your changes immediately.
Example WhatsApp webhook payload
{
"object": "whatsapp_business_account",
"entry": [
{
"id": "WHATSAPP_BUSINESS_ACCOUNT_ID",
"changes": [
{
"field": "messages",
"value": {
"messaging_product": "whatsapp",
"metadata": {
"display_phone_number": "15550001111",
"phone_number_id": "PHONE_NUMBER_ID"
},
"contacts": [
{
"profile": {
"name": "Jane Doe"
},
"wa_id": "15551234567"
}
],
"messages": [
{
"from": "15551234567",
"id": "wamid.HBgLMTU1NTEyMzQ1NjcVAgASGBI...",
"timestamp": "1697371200",
"type": "text",
"text": {
"body": "Hello from WhatsApp!"
}
}
]
}
}
]
}
]
}