XHR Viewer

XHR Viewer provides a focused view of XMLHttpRequest and Fetch API responses within a browser context. It accepts request parameters such as URL, method, headers, and an optional body, and returns a structured result that includes status, timing, headers, and payload. It supports JSON and text payloads, with automatic parsing for JSON where applicable. Outputs are designed for machine readability and easy export to JSON or HAR-like formats. The tool emphasizes reproducibility by enabling repeatable requests and baselines for environment comparisons. It is particularly useful for frontend engineers validating API contracts, backend QA verifying endpoints, and SREs performing quick health checks across environments. Core capabilities include accurate timing measurements, header and body inspection, and content type aware formatting. It also provides redaction options to protect sensitive data when sharing results. Use cases range from simple connectivity checks to in-depth investigations of complex responses. By focusing on structured outputs and exportability, the tool integrates into bug reports and API documentation workflows. The absence of a full proxy capability keeps the tool lightweight and predictable, while still delivering essential visibility into HTTP interactions.