OneDrive Path Checker scans local folders, network drives, and OneDrive-synchronized folders to identify files and paths exceeding Microsoft character limits. The tool detects URLs longer than 400 characters (blocked by SharePoint) and file paths longer than 255 characters (Windows limit for synchronization). Results are displayed on screen and can be exported to CSV. All processing runs 100% locally with no data transmitted externally. Built for IT administrators and SharePoint migration managers.