Devtron is described as 'open source tool to help you inspect, monitor, and debug your Electron app. Built on top of the amazing Chrome Developer Tools' and is an app in the Development category. There are three alternatives to Devtron for Linux, Mac, Windows, Chrome OS and Electron / Atom Shell. The best alternative is Visual Studio Code, which is free. Other great apps like Devtron are VSCodium (Free, Open Source) and WebStorm (Paid).
VS Code is more than just a code editor, it provides the tools and extensions to compile, debug, compare, refactor, and even manage code repositories all within a highly-customised development environment.