Figma

The dominant interface design tool at roughly 90% market share, now extended across motion, code, and generation. Config 2026 shipped Code Layers, Figma Motion (keyframe timeline on canvas), generative shaders, 3D transforms, and an AI agent with connectors to Notion, Slack, Granola, and GitHub. August 2026: nested folders for file organization (up to 10 levels deep) and per-user AI credit limits. Dev Mode handles developer handoff without a separate tool.