DotloomConstraint-driven 2D editors

A Rust engine for geometry, documents, rules and `.dotl` files — running headless or in the browser with a wgpu renderer, a framework-agnostic TypeScript SDK and an optional React editor.

Get started

Open the playground

Rules, not ad hoc code

Equalities, inequalities, geometric relations and priorities are solved by the engine. Invalid edits are rejected with the rules involved and the nearest allowed value.

One document, many views

The engine owns the only editable copy (in a Web Worker). Renderers and UIs receive revisioned deltas; undo, autosave and files all go through transactions.

WebGPU and WebGL2

The same wgpu shaders run on both backends, validated separately in real browsers. No silent Canvas2D fallback.

Your objects

Define entity types as data — properties, anchors, drawing recipes, rules, migrations — and add tools, panels and importers in TypeScript.

Real files

`.dotl` project files (ZIP) round-trip exactly; SVG, DXF and PNG import/export report what they cannot carry.

Open source

MIT OR Apache-2.0. Rust crates, npm packages, CLI, docs and examples in one repository.