WebSocket Mock Server with a Beautiful Terminal UI
node•Jan 8, 2026

WebSocket Mock Server with a Beautiful Terminal UI

Introducing ws-server-ftw, a tool that makes it easy to mock WebSocket APIs during development. With its simple and fast approach, you can test real-time features like chat apps, live notifications, and collaborative editors without needing a backend.

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Key summary

ws-server-ftw is a tool that allows developers to mock WebSocket APIs during development, providing a simple and fast way to test real-time features. It works similarly to json-server, but with the added functionality of WebSocket support and a beautiful Terminal UI.

TL;DR

  • ws-server-ftw is a WebSocket API mocking tool for development
  • Works like json-server, but with WebSocket support
  • Beautiful Terminal UI with syntax highlighting
  • Live updates with merge, deep-merge, or append operations
  • Path-based routing for different WebSocket paths
  • Fast development without a backend needed
  • Supports JavaScript files for dynamic data
  • Perfect for local development and testing
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