ZeroServer.tools

HTTP Response Builder

Build mock HTTP responses with custom status, headers, and body for API testing and documentation.

Version

Status Code

Headers

Body

HTTP Response

HTTP/1.1 200 OK
Content-Type: application/json
Date: Mon, 01 Jan 2024 00:00:00 GMT

{"status":"ok","message":"Hello, World!"}

200 OK

HTTP Response Builder

Mock HTTP responses are essential for API testing, documentation, and frontend development. This builder lets you construct a complete HTTP response message — status line, headers, and body — in the exact wire format defined by RFC 7230. Use it to generate examples for API docs, test parsers, or share expected responses with teammates. All processing runs entirely in your browser.

Private & free — this tool runs entirely in your browser.