kron-demo
AI Demo Video Platform
Record your screen. AI analyzes the footage, identifies scenes, and builds a polished product demo. 18 Remotion components. 9 design layouts. Everything renders on your machine. Zero infrastructure cost.
How It Works
Record your screen
Use any screen recorder. Show your product, feature, or workflow.
AI analyzes and cuts
ffmpeg extracts keyframes. Claude vision identifies distinct scenes. Auto-cuts at scene boundaries.
AI builds the demo
Each clip gets assigned a layout, captions, transitions, and motion. Claude generates the full storyboard.
Render locally
Remotion renders the final video on your machine. Landscape (1920x1080) for YouTube. Vertical (1080x1920) for Reels and TikTok.
Three Creation Modes
Web UI
3-panel visual editor with live Remotion preview, section list, props editor, and command bar.
Claude Code Chat
Terminal creation via skills: /new-demo, /add-section, /analyze-video, /render.
Telegram
Send screen recordings from your phone. Claude builds the demo and sends it back.
18 Remotion Components
Frames
- ScreenFrame (macOS browser)
- TerminalFrame (CLI)
- PhoneFrame (iPhone)
Content
- Caption (glass-morphism)
- SectionTitle
- InfoPanel
- FeatureBadge
- TypeWriter
Code and Data
- CodeBlock (syntax-highlighted)
- MetricCounter (animated)
- ChatBubble
Effects
- GradientBackground
- TransitionWipe (4 types)
- MouseCursor
- ProgressBar
- BrandWatermark
9 Design Layouts
MCP Server
kron-demo runs as an MCP server inside the Kronus ecosystem. 10 tools: create-demo, generate-storyboard, add-section, edit-section, analyze-video, render, list-layouts, list-components, list-templates, get-demo. Connects via Streamable HTTP on port 3200.
Tech Stack
Part of the Kronus ecosystem. Install Kronus to use kron-demo.