Zapier Webhook Tester - Debug & Test Zap Automation Triggers

About

Test and debug Zapier webhook URLs and Zap triggers directly from your browser. Send HTTP requests to your catch hooks, inspect responses, and troubleshoot Zap automation workflows — the fastest free Zapier webhook tool for Chrome.

Building Zaps with webhook triggers? Testing catch hook URLs? Debugging why a Zap isn't firing? Zapier Webhook Tester gives you a clean, visual interface to send test payloads to any Zapier webhook endpoint and see the response instantly.

KEY FEATURES:

• Send Requests to Zapier Webhooks — POST JSON, form data, or plain text payloads to any Zapier catch hook URL. Test webhook triggers, custom webhook Zaps, and Zapier API endpoints.

• Full HTTP Method Support — GET, POST, PUT, PATCH, DELETE, OPTIONS, and HEAD. Test every type of HTTP request your Zapier workflows need.

• JSON Request Builder — Compose structured JSON payloads that match your Zap's expected trigger data. Set custom headers and content types. Preview exactly what your Zapier catch hook will receive.

• Response Inspector — View response status codes, headers, body, response time, and payload size. JSON responses are syntax-highlighted with color-coded keys, strings, numbers, and booleans for fast debugging.

• cURL Import & Export — Paste any cURL command to instantly populate method, URL, headers, and body. Copy your request as a cURL command for documentation, CI/CD scripts, or sharing with teammates.

• Request History — Every webhook test is automatically saved and searchable. Click any previous request to restore the full payload. Track your testing across Zap iterations.

• JSON Syntax Highlighting — JSON responses are beautifully color-coded with distinct colors for keys, strings, numbers, booleans, and null values. Read complex Zap responses at a glance.

• Authentication Support — Configure Bearer Token or Basic Auth for Zapier webhook endpoints and API calls that require authentication.

BUILT FOR ZAPIER DEVELOPERS:

→ Test Zapier "Catch Hook" webhook triggers with real payloads
→ Debug Zap trigger inputs before building downstream actions
→ Send sample data to hooks.zapier.com catch hook URLs
→ Verify Zap webhook triggers fire correctly
→ Test Zapier Webhooks by Zapier integration endpoints
→ Troubleshoot Zap execution errors and field mapping
→ Iterate on webhook payloads without re-testing in the Zap editor
→ Test custom Zapier webhook integrations and API calls

WORKS WITH:

• Zapier Catch Hooks — hooks.zapier.com/hooks/catch/ URLs
• Webhooks by Zapier — Trigger and action webhook endpoints
• Zapier API — api.zapier.com endpoints
• Zapier Zap triggers — Webhook-based Zap triggers
• Custom Zapier integrations — Partner and private integration webhooks
• Zapier automation workflows — End-to-end trigger and action testing

ZAP TRIGGER TESTING WORKFLOW:

1. Create a Zap with a "Catch Hook" trigger in Zapier
2. Copy the webhook URL from Zapier
3. Paste it into Zapier Webhook Tester
4. Write your JSON test payload
5. Click Send — see the response instantly
6. Go back to Zapier and continue building your Zap with real sample data

WHY USE THIS EXTENSION?

Stop switching between the Zapier editor, terminal, and browser DevTools to test webhook triggers. Open a new tab, paste your Zapier webhook URL, compose your test payload, and send. Your request history is saved locally so you can iterate on payloads across multiple testing sessions.

Free forever. No limits. No ads. Your data stays in your browser.

Perfect for Zapier power users, automation engineers, no-code builders, SaaS integrators, and anyone working with Zapier webhook triggers and Zap automation workflows.