Top Alternatives to Balsamiq Mockups

Pencil Project is an open-source GUI prototyping tool.

OmniGraffle is a diagramming and digital illustration application for macOS and iOS.

Moqups is a streamlined and intuitive web app that helps you create and collaborate on wireframes, mockups, diagrams and prototypes for any type of project.

Adobe XD is a commercial vector user experience design tool for designing web apps and mobile apps

InVision is a prototyping, collaboration & workflow platform.

Axure RP is a wireframing, rapid prototyping, documentation and specification software tool aimed at web and desktop applications.

UXPin is a collaborative design platform, allowing entire teams to participate in the design process from start to finish.

Mock up an application and show what's important, the idea, the information, the interaction.

Fluid UI is a browser-based wireframing and prototyping tool developed by Fluid Software and used to design mobile touch interfaces.

Figma is a collaborative interface design tool.

MockFlow is a collection of wireframe tools, prototyping tools, UI mockups, UX suite.

Mockup Designer is an online mockup creator.

Pidoco is a cloud-based collaboration software.