SourceCanvas

AI diagram viewer for Mac

₺249,99

Turn AI answers into diagrams on Mac. Connect ChatGPT/Codex or Gemini by MCP in a few clicks, use Qwen Code too, and preview Mermaid, Graphviz, PlantUML, or SVG locally. Ask an AI to explain a workflow, system, database, project, or idea as a diagram. SourceCanvas gives that answer a real home on your Mac: a native window where you can see it, check it, edit it, and export it. Your AI diagram companion on Mac • Work with Codex, ChatGPT, Gemini CLI, Qwen Code, Claude Desktop, Cursor, Visual Studio Code, and other local MCP hosts • Configure ChatGPT/Codex, Claude Desktop, Cursor, Visual Studio Code, Gemini CLI, and Qwen Code from SourceCanvas; use Copy MCP Connection Settings for other compatible hosts • Let the AI validate and render SVG, Mermaid, Graphviz DOT, or PlantUML through seven MCP tools, Resources, and Prompts • Keep one native AI Preview window updated while a task moves from planning to implementation, tests, and delivery Diagrams for everyday needs • Flowcharts for processes, decisions, instructions, and customer journeys • Sequence diagrams for conversations, APIs, and service interactions • Architecture, component, class, state, UML, and ER diagrams for systems and databases • Gantt charts, timelines, Kanban boards, and mind maps for projects, lessons, research, and personal planning • Pie, XY, Sankey, quadrant, requirement, Git, packet, and other supported Mermaid diagrams Review and export without fuss • Open .svg, .mmd, .mermaid, .dot, .gv, .puml, .plantuml, .iuml, and .pu files, including matching Markdown code blocks • Use Automatic detection, syntax highlighting, find and replace, line/column diagnostics, zoom, pan, Fit Screen, and readable backgrounds • Save the editable source or export SVG, vector PDF, and PNG 1x/2x/3x for reports, slides, documentation, classes, and sharing Local by design • Core SVG, Mermaid, Graphviz, and PlantUML rendering runs on the device; no account or remote rendering service is required • External SVG resources are blocked by default and use secure remote access only when you explicitly allow the document's named hosts • PlantUML uses a single-file offline model: include/import directives and URL or file images are blocked, while safe inline features remain available • SourceCanvas does not upload documents, record AI conversations, enable automatic tool approval, or include advertising analytics AI-assisted workflows are controlled by you. During long coding tasks, a connected Agent can reuse one preview ID to show current architecture or progress. Updates are initiated by the connected AI Host; SourceCanvas does not monitor chats, code, logs, or tasks on its own. The MCP Agent is available on macOS. iPhone, iPad, and Apple Vision Pro provide the same local document preview and export tools without exposing Agent Service.

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SourceCanvas 1.6 - Added one-action setup for detected Qwen Code installations alongside the existing AI hosts. - Strengthened Visual Studio Code MCP setup with explicit install and trust confirmation, safe backups, configuration audit, and restore. - Added completely offline PlantUML preview, syntax highlighting, diagnostics, templates, and .puml/.plantuml/.iuml/.pu documents. - Added PlantUML to Agent Preview, all seven MCP tools, Resources, Prompts, inspection, and SVG/PDF/PNG export. - Added a single-file PlantUML security policy that blocks include/import directives and external images while retaining safe inline features. - Improved renderer cancellation, timeout recovery, rapid-revision handling, transparent backgrounds, and source-line errors. - Improved opening and drag and drop for every registered source format, including Graphviz .dot files when another app owns that extension. - Improved signed Agent Service startup and Connection Diagnostic reliability on macOS.

Version 1.6

The developer, 音建 何, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Provider
    • 音建 何
    Size
    • 19.6 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 18.6 or later.
    • iPhone
      Requires iOS 18.6 or later.
    • iPad
      Requires iPadOS 18.6 or later.
    • Mac
      Requires macOS 14.6 or later.
    • Apple Vision
      Requires visionOS 26.2 or later.
    Languages
    English and 5 more
    • English, Arabic, German, Japanese, Korean, Simplified Chinese
    Age Rating
    4+
    Copyright
    • © @2026 Victor
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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