API Response Viewer
Format raw JSON API responses, record status and timing metadata, and inspect payload structure locally.
Top-Level Fields / Elements
| Field / Index | Value Type | Value Preview |
|---|
About the API Response Viewer
The API Response Viewer lets you paste raw JSON payloads captured from curl, browser DevTools Network tabs, or server logs, annotate them with HTTP status and timing metadata, and inspect their top-level fields locally without making outbound HTTP calls or exposing internal API responses.
Top-Level Field & Type Summary
Automatically enumerates root object properties or array items in a structured summary table showing each field's key, runtime data type, and value preview.
HTTP Metadata Annotation
Record the HTTP status code (e.g., 200 OK, 422 Unprocessable Entity), Content-Type, and round-trip latency alongside the formatted body for bug reports and runbooks.
Zero Outbound Requests
Unlike cloud API clients that proxy requests through external servers, this viewer formats already-captured payloads 100% offline in your browser memory.
Frequently Asked Questions
Why use an offline response viewer instead of an online API client?
When debugging production incidents or customer webhooks, API responses frequently contain internal identifiers, session tokens, or customer records. Pasting the response into a local-only viewer formats and summarizes the structure without uploading sensitive data.
Can I generate TypeScript interfaces from the inspected API response?
Yes. Click Copy to copy the formatted JSON payload, then open the JSON to TypeScript / Zod Converter to infer static interfaces or runtime validation schemas.