Miro

Miro is an infinite online whiteboard platform that has become a staple for remote collaboration, brainstorming, and workshop facilitation. While not a dedicated UI wireframing tool like Figma, its strength for wireframing lies in the earliest, most conceptual stages of design. Teams can use its vast library of shapes, sticky notes, connectors, and pre-made wireframing kits to rapidly map out user journeys, create low-fidelity screen layouts, and organize ideas on a boundless canvas. Its real-time collaboration is exceptional, supporting dozens of simultaneous users with video chat, comments, and voting features integrated directly onto the board.

It excels at facilitating collaborative design sprints, affinity diagramming, and customer journey mapping that inform wireframes. It is ideal for cross-functional teams (product, design, marketing, engineering) who need a shared space for ideation, planning, and creating very rough structural sketches before moving to a more precise design tool.