jsconsole

jsconsole is a web-based interactive JavaScript console designed to make it easy to run and present live JavaScript code directly in the browser, which is especially handy for workshops, presentations, and remote debugging scenarios. It provides an in-browser REPL-style environment where you can type JS expressions and see output instantly, making it useful for teaching, debugging snippets, or demonstrating ideas without setting up a local development environment. One hallmark of jsconsole is its remote debugging support: you can connect a remote browser or device to your console session and receive console output or even execute commands in that context, which simplifies diagnosing problems on devices you don’t have physically in front of you. While more limited than full browser dev tools, it’s lightweight and accessible from anywhere with a browser, and the project includes the full web-app source so you can self-host or customize it for specific use cases.