View full response headers and body with syntax highlighting. Debug API responses.
The HTTP Response Viewer shows the full response for a URL: status line, all headers, and body with optional syntax highlighting (JSON, HTML, XML). Developers use it after sending a request to inspect Cache-Control, CORS headers, or the exact JSON returned. It helps debug "wrong content type" issues, verify CORS headers, and confirm response encoding. Often used in combination with the Request Builder or Status Checker.
Some tools show both request and response; otherwise use the browser DevTools Network tab or a request builder that echoes the request.
Tools usually show raw body; some detect Content-Type and pretty-print or highlight JSON/HTML.
If the tool runs in the browser, normal browser caching may apply. Server-side fetches can be configured to avoid cache.
Many tools offer "Copy as curl" or export so you can replay the request from the command line.
Some tools truncate or lazy-load the body; for very large responses, use a dedicated API client or CLI.