Karbonized is a free, open-source image editor for developers and creators. Design code screenshots, app mockups and social posts with blocks, write your own HTML components whose CSS variables become panel controls, and turn any design into a template with {{variables}}. Save your brand kit once. Then let Agent, the built-in AI assistant, or any MCP client like Claude or Cursor build and export images for you, even with the window closed. Web, Windows, macOS and Linux.
