Frame0 is a desktop wireframing app with a deliberate hand-drawn aesthetic — the sketchy style signals 'this is a draft' to stakeholders and keeps early conversations focused on structure rather than polish. It's the most direct Balsamiq alternative, adding AI wireframe generation via your own API key (OpenAI, Anthropic, Gemini, or Grok), MCP server support for Claude Desktop and Cursor, and code export from wireframes. Works offline, cross-platform, with a free core tier and a one-time paid upgrade.
Frame0 is a desktop wireframing app with a deliberate hand-drawn aesthetic — the sketchy style signals 'this is a draft' to stakeholders and keeps early conversations focused on structure rather than polish. It's the most direct Balsamiq alternative, adding AI wireframe generation via your own API key (OpenAI, Anthropic, Gemini, or Grok), MCP server support for Claude Desktop and Cursor, and code export from wireframes. Works offline, cross-platform, with a free core tier and a one-time paid upgrade.