D365 JS Library Editor is a free Chrome add-on designed for developers working with Microsoft Dynamics 365 and the Power Platform. This productivity tool allows users to edit and publish JavaScript libraries directly from any D365 record without navigating through Power Apps. It features an intuitive side panel that auto-detects the entity and form, loads all associated JavaScript resources, and offers a full code editor with advanced search and formatting options. Users can save and publish changes seamlessly with a single click.

In addition to editing capabilities, the tool also supports breakpoint debugging. Developers can easily set breakpoints in the code editor, and upon triggering corresponding actions in D365, Chrome DevTools will open at the exact line where execution is paused. This eliminates the need for manual searching and enhances the debugging process, making it more efficient for developers to work within their existing D365 sessions.