Short Description
Tired of red error nodes? The ComfyUI Model Downloader automatically analyzes your workflows via AI, tracks down missing models, and manages your heavy files with an integrated Archive Manager. The ultimate SSD-saver and a must-have standalone Java tool for every ComfyUI power user!

We’ve all been there...
You find an amazing workflow, drag it into ComfyUI, and... RED. Error messages everywhere because you're missing specific models. You spend the next 20 minutes manually hunting for Checkpoints, LoRAs, and ControlNets, moving files around, only to realize your SSD is completely maxed out again.

It’s time to stop the madness.

The ComfyUI Model Downloader is a powerful standalone Java desktop application (featuring a seamless ComfyUI extension) built to do all the heavy lifting for you. Spend less time managing files and more time actually generating!

🔌 Installation & Setup
⚠️ OS Notice: So far, this tool has only been heavily tested on Windows.

Features

  • 🚀 1-Click Workflow Import: Add the "Send to Downloader" button directly into your ComfyUI interface. One click instantly sends your current workflow to the app.
  • 🧠 AI-Powered Analysis: Uses Gemini AI (optional) or basic local logic to "read" workflows like a human. Missing metadata? No problem. The AI intelligently identifies the correct models and hunts down the right download links.
  • 📦 Archive Manager (The SSD Savior): Move massive, rarely used models to a slower HDD. The app remembers where they are! If a future workflow needs them, it offers a one-click restore back to your fast drive.
  • 👯 Smart Storage Optimizer: Scans your entire library for hidden duplicates using strict SHA-256 hashing. Free up precious space by deleting identical files hiding under different names.
  • 🔍 Corruption Detection: Automatically validates your Safetensors and checkpoints to ensure you aren't working with corrupted or incomplete files.
  • 🛡️ Vault Security & Optional APIs: The app works perfectly out-of-the-box without any accounts! But if you choose to add optional API keys (HuggingFace, Gemini) for extra power features, they are locked down with military-grade encryption directly on your local drive.
  • 🌗 Sleek UI: A modern, dark-themed interface built to perfectly match your ComfyUI aesthetic.
  • Lightweight & Cross-Platform: Written in Java 17 for top-tier performance on any OS.

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Registered

2026-04-24