Request & Response Inspector
Instant real-time webhook debugging
Open Inspector API ReferenceInterface Preview
The dashboard features a dual-pane architecture optimized for high-throughput debugging. The incoming stream panel captures payloads from dedicated endpoints like `https://hooklab.io/relay/9c4e11`, while the analysis pane renders structured data with collapsible trees and line annotations.
Select any transaction timestamp to reveal the complete request-response cycle. The top toolbar applies filters for HTTP methods, status codes, and custom headers such as `X-Hook-Secret`. Toggle between raw and formatted views, and use the integrated regex search to locate specific payload keys across thousands of events.
Core Capabilities
Protocol-Level Visibility
Examine every header field including `Content-Type`, `Authorization`, and `X-Forwarded-For`. Identify malformed values that trigger 401 or 403 responses from Stripe, Shopify, or GitHub event sources.
Deep Body Inspection
Automatically decompresses gzip and deflate streams, decodes base64 attachments, and validates JSON against OpenAPI 3.0 schemas. Highlights syntax errors and type mismatches in under 50ms.
Cookie & Session Tracking
Captures `Set-Cookie` directives and maps session lifecycles across recurring webhook deliveries. Displays expiration timestamps, path constraints, and secure flags to resolve authentication loops.
Query & Form Mapping
Extracts and decodes `application/x-www-form-urlencoded` fields. Maps duplicate keys, validates required arguments for payment processors, and separates query strings from POST bodies.
Syntax Highlighting
Applies color-coded tokens for strings, integers, booleans, and null values. Syncs theme preferences with VS Code or Sublime Text configurations for consistent developer ergonomics.
Curl & Postman Export
Generates executable `curl` commands, Postman collection JSON, or Python `requests` scripts with exact headers and payloads. Share reproducible test fixtures with your engineering team instantly.