openflowkit

Next AI Draw.io turns natural-language requests into editable draw.io diagrams and can use images, PDFs, or text files as source material. It keeps diagram history, runs as a web or desktop app, and exposes an MCP server for agent workflows. You need to configure an AI provider and API key, and complex diagrams benefit from models that reliably produce long, strictly formatted draw.io XML.

Excalidraw-CN adapts Excalidraw for Chinese handwriting-style fonts and multi-canvas drawing, making sketches and diagrams look more natural in Chinese. The repository can still be run locally for development, but its original online version is deprecated. The maintainer says the project has been fully upgraded into ReveZone, which now provides the recommended web and desktop experience with broader file management and custom-font support.

ShadowEditor is a self-hosted 3D scene editing system available through web and desktop interfaces. It manages scene assets such as models, materials, audio, and animation, while adding user and role controls, history, autosave, and real-time playback. It is aimed at teams that need managed scene assets rather than a lightweight local-only editor, and deployment relies on its server component and MongoDB.

Use tld to map and maintain complex software architecture through a C4-inspired visual workspace. Diagrams can be edited in the UI or managed from the CLI, YAML files, and an agent skill, with Mermaid import and export plus links back to editors and GitHub. The standalone binary includes the web app and can run offline with SQLite or be self-hosted; PostgreSQL deployments require pgvector.