The Commands and Keybindings API allows extensions to register custom commands and associate them with keyboard shortcuts. This enables users to quickly trigger actions without using the mouse.

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Basic Usage

app.registerExtension({
  name: "MyExtension",
  // Register commands
  commands: [
    {
      id: "myCommand",
      label: "My Command",
      function: () => {
        console.log("Command executed!");
      }
    }
  ],
  // Associate keybindings with commands
  keybindings: [
    {
      combo: { key: "k", ctrl: true },
      commandId: "myCommand"
    }
  ]
});

​
Command Configuration

Each command requires an id, label, and function: 
{
  id: string,              // Unique identifier for the command
  label: string,           // Display name for the command
  function: () => void     // Function to execute when command is triggered
}

​
Keybinding Configuration

Each keybinding requires a combo and commandId: 
{
  combo: {                 // Key combination
    key: string,           // The main key (single character or special key)
    ctrl?: boolean,        // Require Ctrl key (optional)
    shift?: boolean,       // Require Shift key (optional)
    alt?: boolean,         // Require Alt key (optional)
    meta?: boolean         // Require Meta/Command key (optional)
  },
  commandId: string        // ID of the command to trigger
}

​
Special Keys

For non-character keys, use one of these values:
  • Arrow keys: "ArrowUp", "ArrowDown", "ArrowLeft", "ArrowRight"
  • Function keys: "F1" through "F12"
  • Other special keys: "Escape", "Tab", "Enter", "Backspace", "Delete", "Home", "End", "PageUp", "PageDown"

​
Command Examples

app.registerExtension({
  name: "CommandExamples",
  commands: [
    {
      id: "runWorkflow",
      label: "Run Workflow",
      function: () => {
        app.queuePrompt();
      }
    },
    {
      id: "clearWorkflow",
      label: "Clear Workflow",
      function: () => {
        if (confirm("Clear the workflow?")) {
          app.graph.clear();
        }
      }
    },
    {
      id: "saveWorkflow",
      label: "Save Workflow",
      function: () => {
        app.graphToPrompt().then(workflow => {
          const blob = new Blob([JSON.stringify(workflow)], {type: "application/json"});
          const url = URL.createObjectURL(blob);
          const a = document.createElement("a");
          a.href = url;
          a.download = "workflow.json";
          a.click();
          URL.revokeObjectURL(url);
        });
      }
    }
  ]
});

​
Keybinding Examples

app.registerExtension({
  name: "KeybindingExamples",
  commands: [
    /* Commands defined above */
  ],
  keybindings: [
    // Ctrl+R to run workflow
    {
      combo: { key: "r", ctrl: true },
      commandId: "runWorkflow"
    },
    // Ctrl+Shift+C to clear workflow
    {
      combo: { key: "c", ctrl: true, shift: true },
      commandId: "clearWorkflow"
    },
    // Ctrl+S to save workflow
    {
      combo: { key: "s", ctrl: true },
      commandId: "saveWorkflow"
    },
    // F5 to run workflow (alternative)
    {
      combo: { key: "F5" },
      commandId: "runWorkflow"
    }
  ]
});

​
Notes and Limitations

  • Keybindings defined in the ComfyUI core cannot be overwritten by extensions. Check the core keybindings in these source files:
  • Some key combinations are reserved by the browser (like Ctrl+F for search) and cannot be overridden
  • If multiple extensions register the same keybinding, the behavior is undefined