High speed downloader that supports all platforms
Microsoft project for cloud-based client-server communication
Fast cross-platform HTTP benchmarking tool written in Go
Sōzu HTTP reverse proxy, configurable at runtime, fast and safe
Indexes open directories
Ultra fast and low latency asynchronous socket server & client C#
WireMock.Net is a product for stubbing and mocking web HTTP responses
Lightweight service virtualization/ API simulation / API mocking tool
The most advanced tool for HTTP API
An OOB interaction gathering server and client library
A CLI, cURL-like tool for humans
Log outgoing HTTP requests in ruby
mitmproxy implemented with golang
Drill is an HTTP load testing application written in Rust
Hurl, run and test HTTP requests with plain text
A high-performance HTTP benchmarking tool
Language-agnostic HTTP API Testing Tool
An interactive command-line HTTP and API testing client
An extensible proxy for PC/Mobile/APP developer
A cross platform http sniffer with a web UI
Swagger to GraphQL API adapter
Content-addressable data synchronization tool
Lightweight HTTP Client for embedded devices
Cross-platform C++ libraries with a network/internet focus.