Features
Visual planning with Boards (feature cards, dependency mapping)
Design Canvas with drag-and-drop, resize, and visual editing
Sandbox for safe AI-powered code experimentation and merging
Parallel agents: up to 5 simultaneous AI agents
Custom subagents and agents for specialized tasks
Slash commands for quick workflows (create skills, agents, scan APIs)
Integrated terminal with AI command execution and approval
Built-in API client for endpoint testing and project scanning
Diff integration for advanced code comparison
Model Context Protocol (MCP) support for AI context
Memory management with slots for context retention
Voice-to-text (on-device, preview)
Git context menu and checkpoint restore options
External file watching for editor sync
Customizable workspace with floating panels and theme editor
Drag-and-drop visual canvas with code layer mapping
AI page, theme, and component generation from prompts
Responsive auto-layout with mobile support
Multiplayer real-time collaboration with layer comments
Design system with props, slots, and variants
Export clean front-end code without AI use
CLI sync via `npx @subframe/cli sync`
AI remix variations and @mention context
Integration with Cursor and Claude Code via MCP + Skills
24-hour version history (Free), 7-day (Pro)
Personalized AI that learns your components and style
Prototype with code and annotated designs
Unlimited team members on all plans
Free viewer seats included