Drawdiags — free diagram-to-code editors

Drawdiags is a set of five free, browser-based visual editors where the diagram and the code are the same thing: draw on a canvas and the code writes itself, or paste code and watch the diagram appear. Every feature of the offline version is free — no account, no backend, and your diagrams never leave your browser. Works on PC, tablet and mobile.

Drawtabase — database design that generates SQL.
Drawpenapi — HTTP API design that generates OpenAPI.
Drawmaid — diagram design that generates Mermaid, with PlantUML planned.
Drawlize — JSON/YAML design that generates JSON or YAML.
Drawuml — UML design that generates PlantUML.

Version history with visual and code diffs, share by URL, light and dark themes, and a Confluence integration — with real-time collaboration and more integrations on the roadmap.