ComfyUI - Download File

A single ComfyUI node to securely download an image or audio file from a URL, store it in the temp directory, and return it as an IMAGE/AUDIO tensor plus file path.

Installation

1. Clone into ComfyUI/custom_nodes:

   cd ComfyUI/custom_nodes
   git clone https://github.com/serious-factory/ComfyUI-DownloadFile.git
   

2. Install dependencies:

   pip install -r requirements.txt
   

3. Restart ComfyUI.

Quick usage

• Add the Download File node (category Utilities/Download).
• Provide an HTTP/HTTPS URL to an image (jpg/png/webp/gif) or audio file (mp3/wav/flac/ogg/m4a).
• Optional: expect_type (auto/image/audio) to force the expected type, max_mb to cap size (default 50 MB).
• Wire IMAGE to image nodes or AUDIO to audio nodes. filepath points to the downloaded file in ComfyUI temp.

Built-in safety

• HTTP/HTTPS only, blocks private/loopback hosts to reduce SSRF risk.
• Connection/read timeouts and configurable size limit.
• MIME/extension allowlist for images and audio; unsupported types are rejected.

Core dependencies

• requests, torch, torchaudio, pillow, numpy (ComfyUI provides folder_paths).