MockFlow is a browser-based wireframing and whiteboarding platform, split into two connected tools: WireframePro for structured UI wireframes and IdeaBoard for freeform brainstorming and diagrams.
It covers more of the pipeline than a pure wireframing tool: built-in component libraries, AI-assisted layout generation, and code export to React and Flutter, so a wireframe can turn into scaffolded code rather than staying a static image.
Aimed broadly (design teams, PMs, developers, agencies, educators), so it suits teams who want one tool for both early ideation (IdeaBoard) and structured wireframing (WireframePro) instead of switching apps.
A free plan exists, but the code-export and AI generation features that differentiate it from a plain wireframing tool sit on paid tiers.