Best Open Source Alternatives to Principle for Mac

A virtual whiteboard for sketching hand-drawn like diagrams and mockups.

vs Principle for Mac: a free, open-source option you fully control, licensed MIT.

A tiny collaborative drawing app and library built with TypeScript and React.

vs Principle for Mac: a free, open-source option you fully control, licensed Apache-2.0.

An open source user flow planning and wireframing tool built with Node.js.

vs Principle for Mac: a free, open-source option you fully control, licensed MIT.

A visual programming node editor to build responsive web page wireframes.

vs Principle for Mac: a free, open-source option you fully control, licensed Apache-2.0.

A simple open-source online mockup builder and wireframe generator.

vs Principle for Mac: a free, open-source option you fully control, licensed MIT.