A open source general diagram editor

Ratel is a innovative general diagram editor, harnesses the power of canvas-kit(skia-wasm). It offers flexibility to work online, offline or via a desktop application ( powered by Electron) on Windows, MacOS and Linux. Versatile in nature, Ratel enables users to create flowchart,UML diagrams, mockup and various other diagram types with ease and precision.

Create your diagrams anytime and anywhere

You can edit your diagram online with web browser, Windows client, Linux client or Mac client.

Working in Cloud or Locally

Support to load & save diagram in cloud or locally.

Rich Template Support

Rich templates help to create different diagram types (UML, Workflow etc.).

Customizable shape make creating more efficient

Support shape customization and reuse.

Support Import extern image or SVG

Reuse existing work for diagram.

Share online easily

Create group and share ideas with team.

Export partial or full diagram to outside

Support to export selected shapes or the whole diagram with different format, such as SVG, PNG or others.