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Tools HTTP & APIs

HTTP & APIs tools

Build, inspect, convert, and understand HTTP requests, responses, APIs, headers, and browser network data.

HTTP & APIs tools

http-apis Local URL & Query String Inspector Break a URL into its parts and decode every query parameter locally, with credentials in the query string flagged. http-apis Local cURL Converter & Explainer Read what a curl command actually does, then convert it to JavaScript, Python, Go, Java, C#, PHP, Ruby, or Rust, in your browser. http-apis Local HTTP Request Builder Build an HTTP request locally and generate equivalent cURL, fetch, Python, or Go code without sending it. http-apis Local HTTP Header Inspector Parse raw HTTP request or response headers locally and inspect repeated fields, caching, security, and CORS signals. http-apis Local HTTP Status Explorer Search a canonical reference of HTTP status codes by number, family, and meaning entirely in your browser. http-apis Local HAR Inspector Open a browser HAR file locally to summarize requests, timings, sizes, and response details without uploading the archive. http-apis Local User-Agent Parser Parse a browser or client User-Agent string into readable local fields. http-apis Local OpenAPI Change Inspector Compare two OpenAPI documents locally and review removed operations, newly required inputs, and other contract changes.