dotnet/dev-proxy

⏰ 🔥 A TCP proxy to simulate network and system conditions for chaos and resiliency testing

MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.

Local API emulation for CI and no-network sandboxes

Lightweight service virtualization/ API simulation / API mocking tool for developers and testers

TCP proxy for simulating variable, yet predictable network latency 🌐:hourglass_flowing_sand:

clumsy makes your network condition on Windows significantly worse, but in a controlled and interactive manner.

LiveMock is a comprehensive tool for API development and testing, offering mock data, request proxying, and logging, to streamline workflows and track traffic.

mocker-api that creates mocks for REST APIs. It will be helpful when you try to test your application without the actual REST API server.

Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.