n8n JSON Master is a professional-grade JSON editor designed specifically for n8n workflows. This Chrome extension offers a full Monaco editor with syntax highlighting and validation, making it easier for developers to manipulate JSON data effectively. Key features include automatic appearance on n8n workflow pages, multi-instance support with secure credential storage, and real-time synchronization with direct API integration, allowing users to save changes without refreshing the page.

The tool also provides essential developer features such as a compact Nodes Manager for easy node management, inline editing, and smart filtering. The JSON Editor includes a path navigator for visualizing JSON structure, along with quick formatting tools, auto-validation, and a find & replace function with regex support. With a focus on efficient workflow navigation and JSON manipulation, n8n JSON Master significantly enhances the user experience for developers working with n8n.