ComfyUI-Manager 🧩 Workflow Open source

What it is

ComfyUI-Manager is the extension almost every ComfyUI user installs first. Originally by ltdrdata and now under the Comfy-Org GitHub organisation (GPL-3.0), it adds a Manager menu for installing, removing, disabling and updating custom node packs, fetching missing nodes for a workflow you loaded, and downloading models. It is integrated with the official Comfy Registry, which lists versioned node packs with publisher information, and it is the tool most shared workflows assume you have when they ask you to install missing nodes.

Key features

• Browse and install custom nodes from the Comfy Registry
• "Install missing nodes" for shared workflows
• Update ComfyUI and all node packs from one menu
• Model downloader for common checkpoints and add-ons
• Snapshots to roll back a working set of nodes
• Security levels and uv support for faster, safer installs

How to install

Go to ComfyUI/custom_nodes and run git clone https://github.com/ltdrdata/ComfyUI-Manager comfyui-manager, then restart ComfyUI. Portable Windows builds have their own script, and pip install comfy-cli followed by comfy install sets up ComfyUI with the Manager included. Recent ComfyUI Desktop builds ship it by default.

Pricing and rights

Free and open source (GPL-3.0). Custom nodes you install through it have their own licences and code quality; the Manager's security settings help but do not audit third-party code.

Who it is for

Every ComfyUI user, from beginners loading shared workflows to studios managing many node packs.

Verdict

Essential infrastructure for ComfyUI. The main risk is the ecosystem it opens: installing unvetted node packs can break environments or run untrusted code.