Axure RP Alternatives for Linux

Pencil Project is a free and open-source GUI prototyping tool that helps designers and developers create wireframes and mockups easily. Available as a standalone application and a Firefox extension, it offers a wide range of built-in shapes and templates for various platforms.

Apache OpenOffice Draw is a powerful vector graphics editor within the OpenOffice suite. It's ideal for creating flowcharts, diagrams, technical drawings, and general vector illustrations with ease and precision.

Edraw Max is a powerful, all-in-one diagramming software for creating professional diagrams, charts, floor plans, network diagrams, and much more. It offers a vast library of templates and symbols for various industries, facilitating efficient visual communication and project planning for individuals and teams.

UXPin is a comprehensive design platform for creating interactive prototypes, wireframes, and mockups. It facilitates seamless team collaboration throughout the design process, from initial concept to developer handoff.

Lovely Charts is an intuitive online diagramming application designed for creating professional diagrams quickly and efficiently. It caters to various diagramming needs, including flowcharts, sitemaps, organization charts, and more, offering a user-friendly interface and essential collaboration features.

ProcessOn is an intuitive online diagramming tool designed for creating flowcharts, mind maps, UML diagrams, and more. It facilitates real-time collaboration and sharing, making it ideal for teams needing to visualize processes and ideas together.