---
title: "ComfyUI-Manager — ComfyUI Node Inputs, Wiring & Troubleshooting"
description: "Complete reference for ComfyUI-Manager (ltdrdata/ComfyUI-Manager) in ComfyUI: input pins (Top menu bar Manager button), output pins (Install Custom Nodes, Install Missing Nodes, Model Manager), and Windows setup."
canonical: https://comfy.ink/nodes/comfyui-manager
updated: 2026-10-17
---

# ComfyUI-Manager

Essential management extension that detects missing red nodes in imported workflows and installs custom node repositories with one click. Package: ltdrdata/ComfyUI-Manager.

## Facts (2026-10-17)

- **Node / Pack:** ComfyUI-Manager
- **Category:** custom-pack
- **Inputs:** Top menu bar Manager button
- **Outputs:** Install Custom Nodes, Install Missing Nodes, Model Manager
- **Source Pack:** ltdrdata/ComfyUI-Manager

## What ComfyUI-Manager does in a ComfyUI graph

Essential management extension that detects missing red nodes in imported workflows and installs custom node repositories with one click.

On the canvas, this node accepts `Top menu bar Manager button` and emits `Install Custom Nodes, Install Missing Nodes, Model Manager`. Every pin is color-coded by data type so you cannot accidentally wire a pixel `IMAGE` tensor into a `LATENT` pin without an intermediate encode step.

## Installation and missing-node recovery on Windows

ComfyUI-Manager is provided by `ltdrdata/ComfyUI-Manager`. Open [ComfyUI-Manager](https://comfy.ink/nodes/comfyui-manager), click **Install Custom Nodes** (or **Install Missing Custom Nodes** if you loaded a workflow with red boxes), and restart the server.

Download the full Windows desktop or portable package at [/download](https://comfy.ink/download) to get started with a clean Python 3.12 environment.

## FAQ

### How do I fix "ComfyUI-Manager" showing up as a red box in ComfyUI?

Open [ComfyUI-Manager](https://comfy.ink/nodes/comfyui-manager), click **Install Missing Custom Nodes**, install `ltdrdata/ComfyUI-Manager`, and restart ComfyUI.

### What are the main inputs and outputs of ComfyUI-Manager?

Inputs: Top menu bar Manager button. Outputs: Install Custom Nodes, Install Missing Nodes, Model Manager.

## Related

- [ComfyUI Nodes Reference](https://comfy.ink/nodes)
- [How to Fix Red Missing Nodes in ComfyUI Workflows](https://comfy.ink/howto/fix-missing-custom-nodes-red-boxes)
- [ComfyUI Studio Workspace](https://comfy.ink/studio)
- [KSampler & KSampler (Advanced)](https://comfy.ink/nodes/ksampler)
- [Wiring & Fixing KSampler & KSampler (Advanced)](https://comfy.ink/nodes/ksampler-wiring-and-fixes)

## Download

Free desktop app: [Download Comfy](https://comfy.ink/download)

Markdown mirror: https://comfy.ink/nodes/comfyui-manager.md