Show HN: DrillFlow – a diagram editor where every node opens into a sub-diagram

Category: devtools

Tags: diagram-editor, pwa, mermaid, hierarchical-diagrams, mcp

Score: 6.0/10 (Innovation: 7, Technical: 6, Documentation: 4, Utility: 5)

DrillFlow is a browser-based diagram editor where each node can expand into its own sub-diagram, enabling hierarchical drill-down navigation. It supports Mermaid import, works offline as a PWA, and offers an MCP server for AI-assisted diagram generation.

Target audience: developers, architects, and technical documentation writers

Repository: https://drillflow.de/de/

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