httpr
HTTP Rake - a simple HTTP server for examining/testing HTTP requests
HTTP Rake - httpr - is a lightweight and flexible HTTP testing tool that is useful for examining and testing HTTP requests without the need for a full-fledged Web server or a proxy. Implemented in Go, httpr is extremely compact, and can be run locally, which is useful in cases when sending HTTP traffic to a third-party hosted solutions is not desirable, or impractical.