Socketfox is an Electron-based Socket.IO client. It lets you send and receive messages over a Socket.IO-based Websocket connection so you can develop your backend without a frontend client.
Pre-built binaries of Socketfox are available for Linux at Room236 Open Source. We're currently working on a process for automating macOS and Windows builds.
You'll need Node.js and Yarn installed to build Socketfox. Then, simply run yarn install to install dependencies,
yarn build to compile, and yarn start to start a development build.
Socketfox is released for free under the GNU General Public License v3.0.