ComfyUI-CrosshairGuidelines

https://github.com/user-attachments/assets/94340d82-08f5-41cd-9a0d-37e0e9b56d1a

Crosshair guidelines for ComfyUI to help align nodes and groups while moving or resizing.

Installation

Install via ComfyUI Manager or clone this repo into ComfyUI/custom_nodes/ComfyUI-CrosshairGuidelines.

[!NOTE] Nodes 2.0 support is best-effort and may vary slightly between ComfyUI releases.

Features

• Crosshair guidelines on move and resize (nodes and groups).
• Adjustable move, resize, and idle modes.
• CTRL behavior mode (show, hide, off) for modifier-key-driven visibility.
• Customizable color and line thickness.
• Link and node opacity dimming so the active object stays visually prominent.
• Optional hiding of the active outline during move/resize.

Settings

All settings appear under Crosshair Guidelines in ComfyUI settings.

• move_mode: off or all.
• resize_mode: off, selected, or all.
• idle_mode: off or all.
• ctrl_behavior:
  • show: hide crosshairs during node/group interactions unless Ctrl/Meta is held.
  • hide: show crosshairs normally, but hide while Ctrl/Meta is held.
  • off: ignore Ctrl/Meta.
  • Does not affect marquee multi-select (marquee always suppresses crosshairs).
• color: Any CSS color value (including hex with alpha like #RRGGBBAA, plus rgb/rgba/hsl and named colors).
• thickness: Line width in pixels.
• link_opacity: Multiplier for link opacity during move/resize (0–1).
• node_opacity: Multiplier for node/group opacity during move/resize (0–1).
• hide_active_outline: Hides the active node/group outline while moving or resizing.
• diagnostics: Writes Crosshair Guidelines debug output to the browser console. Disabled by default.

Diagnostics

• Optional diagnostics are disabled by default and can be enabled from the Crosshair Guidelines settings panel.
• For troubleshooting settings-load issues only, localStorage["crosshair_guidelines.diagnostics"] = "true" or window.__crosshair_guidelines_diagnostics = true also enables diagnostics.

Notes

• The JavaScript contains a lot of defensive compatibility logic for different ComfyUI / LiteGraph / Nodes 2.0 variants, plus input handling and rendering edge cases. Refactoring is being staged into smaller modules while preserving compatibility.
• link_opacity and node_opacity affect all objects except the active one.
• Link creation drags (including slot-handle/slot-label starts) suppress crosshairs.
• Tested on Microsoft Edge.