httpcloak is a Go HTTP client that emits the same wire bytes as a real browser across HTTP/1.1, HTTP/2, and HTTP/3. The Go core handles TLS via uTLS, HTTP/2, HTTP/3 over QUIC, proxying through HTTP CONNECT, SOCKS5, and MASQUE, and per-resource RFC 7540 / RFC 9218 stream priorities. Python, Node.js, and .NET get the same API through a shared cgo library.