Show HN: Napkin – desktop app for quick diagrams, with MCP support (github.com)

Napkin, a new desktop app for quick diagram creation, has been introduced, emphasizing speed and offline functionality. This local-first tool allows users to sketch out ideas and create diagrams using a range of features, including a shape library, connectors, and freehand drawing, all without the need for accounts or cloud services. Users can easily export their creations in various formats, including PNG and SVG. The app prioritizes user privacy by keeping all data locally on the user’s machine. Significantly for the AI/ML community, Napkin includes built-in support for the Model Context Protocol (MCP), enabling AI agents to programmatically manipulate diagrams. This feature opens up new possibilities for integrating AI into the design process, allowing for real-time adjustments and collaborative creations with AI assistance. Developers can access the MCP server through a simple configuration, paving the way for innovative uses of AI in visualizing complex systems and workflows. With its straightforward interface and robust features, Napkin could become a valuable tool for both technical and non-technical users looking to enhance their creative processes.