n8n Webhook Tester - Debug & Test n8n Automation Workflows

The fastest way to test and debug n8n webhook URLs directly from your browser. Send HTTP requests to your n8n workflows, inspect responses, and troubleshoot automation triggers — without switching between tabs or apps. If you build automations with n8n, you know the pain of testing webhook triggers. You set up a Webhook node in n8n, need to send it test data, and end up fumbling with terminal commands or other tools. n8n Webhook Tester eliminates that friction entirely. KEY FEATURES: • Send Requests to n8n Webhooks — POST JSON, form data, or plain text payloads directly to any n8n webhook URL. Supports n8n Cloud (app.n8n.cloud) and self-hosted n8n instances. • Full HTTP Method Support — GET, POST, PUT, PATCH, DELETE, OPTIONS, and HEAD. Test every type of webhook trigger and HTTP endpoint your n8n workflows use. • JSON Request Builder — Write structured JSON payloads with ease. See exactly what data your n8n Webhook node will receive. Set custom headers and authentication tokens. • Response Inspector — View response status codes, headers, body, response time, and size. JSON responses are syntax-highlighted with color-coded keys, strings, numbers, and booleans for quick reading. • cURL Import & Export — Paste any cURL command to instantly populate method, URL, headers, and body. Copy your request as a cURL command to share or reuse in scripts and CI/CD pipelines. • Request History — Every webhook test is automatically saved. Search and click any previous request to restore it instantly. Track your testing sessions across workflow iterations. • JSON Syntax Highlighting — JSON responses are beautifully color-coded with distinct colors for keys, strings, numbers, booleans, and null values. Read complex workflow responses at a glance. • Authentication Support — Configure Bearer Token or Basic Auth for n8n webhook endpoints that require authentication. BUILT FOR n8n DEVELOPERS: → Test n8n Webhook trigger nodes with real payloads → Debug n8n workflow inputs before building downstream logic → Send sample data to n8n Cloud or self-hosted webhook URLs → Test n8n HTTP Request node responses → Verify n8n automation triggers fire correctly → Troubleshoot n8n workflow execution errors → Iterate on webhook payloads without restarting workflows WORKS WITH: • n8n Cloud — https://app.n8n.cloud webhook endpoints • Self-hosted n8n — Any custom domain running n8n • n8n Webhook nodes — Production and test webhook URLs • n8n HTTP Request nodes — Test any HTTP endpoint • n8n workflow automation — End-to-end trigger testing WHY USE THIS EXTENSION? Stop switching between n8n, terminal, and browser DevTools. n8n Webhook Tester lives right in your browser — open a new tab, paste your n8n webhook URL, write your test payload, and send. See the response instantly. Your test history is saved automatically so you never lose a request. Free forever. No limits. No ads. Your data stays in your browser. Perfect for n8n developers, automation engineers, no-code builders, and anyone working with n8n workflow automation and webhook integrations.