Node.js V8 --inspector Manager (NiM) is a Chrome extension that streamlines your Node.js development cycle when using Chrome DevTools. It provides extended capabilities compared to the new chrome://inspect option. With NiM, you no longer need to copy/paste DevTools URLs or continuously open and close tabs/windows.

One of the key features of NiM is its ability to automatically detect the URL generated when running node with the --inspect option. It offers the option to automatically open and close Chrome DevTools in a tab or window, allowing you to focus on debugging your code. Additionally, NiM allows you to manage and monitor Node Diagnostics and Reports, as well as local and remote debugging sessions.

To use NiM, simply install the extension and run node with the --inspect flag. NiM requires permissions to "Read and change all your data on the websites you visit" and "Know your email address." However, the developer assures that no information will be shared with third parties and the source code is available on GitHub.

Overall, Node.js V8 --inspector Manager (NiM) is a useful tool for Node.js developers who want to streamline their debugging workflow and enhance their experience with Chrome DevTools.